The Latest News on Acoustic Speaker Cloth – and Us

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How to ensure the quick and smooth delivery of your order

Active tracking of your shipment from Akustikstoff.com is more important than you may think. 

Is your order from our online shop already on its way to you? If so, you will have received a shipment notification email with a tracking number. Use this number to actively track your shipment. It’s worth the effort.

Now and then we receive emails and calls from customers who report problems with the delivery of their shipment and ask us for help. Apart from a few exceptions, however, there is very little we can do in such cases. The parcel services’ operations are completely beyond our control, especially outside Germany. Nevertheless, there are several things you can do in advance to avoid much of the typical hassle with parcel services. 

This article illustrates how to set the course for the smooth delivery of your order. Let’s start with a look at what causes the vast majority of problems, because, as always, understanding the origin of problems makes it easier to avoid them right from the outset.

Overworked delivery staff 

Are you still expecting several delivery attempts to be made before a shipment is considered undeliverable and returned to the sender? Well, time to say farewell to this idea. Today, delivery services are amazingly quick when it comes to returning a shipment because of an insignificant address error, a missing door code for a building, or simply because the reception desk in an office building is unoccupied during the very minute a delivery driver appeared and disappeared again. 

You can also bid farewell to the hope that drivers will actually phone, text, or email you, no matter how many contact options may be printed on the address label of a shipment. According to our experience, phone contact is only made for express items nowadays. In all other cases, the delivery driver, in all likelihood a prime example of an overworked, underpaid gig worker anyway, will try to get the shipment out of that delivery van clogged with far too many Amazon parcels as quickly as possible. Quite frankly, working conditions don’t leave space for even the least bit of additional service. So don’t blame the driver. 

Parcel service drivers are often overworked nowadays. Help them deliver your Akustikstoff.com order smoothly.
The volume of parcels is continuously increasing and most delivery drivers are terribly overworked. Please make it as easy as possible for them to deliver your Akustikstoff.com order effortlessly.

Do not expect notifications

In the meantime, items are often deposited for collection at a depot (UPS Access Point, post office, etc.) after a single delivery attempt. And, in many countries, you better not bet on a corresponding notification to land in your letterbox. In the worst case, your fervently awaited speaker cloth will be returned to us without any further notification after about 10 days in the depot. 

Much in the same way, items are more and more often “delivered” at a random place somewhere on the plot or in the immediate vicinity of the delivery address. And, again, the expected notification card might be missing. In such cases, the item is flagged as “delivered” in the parcel service’s database, but it can be almost impossible to identify its actual location or to collect it. This can be particularly annoying for business customers who are urgently waiting for our speaker fabric to keep their production running.

Moreover, the vast majority of parcel services still perform “contactless delivery” as a protection measure against Covid-19. This can make it even more complicated to find out the whereabouts of an item and the person who has accepted the shipment.

Keep a constant eye on the shipment process of your speaker cloth 

Once you’re aware of all this, you can do appropriate steps to ensure that your shipment from Akustikstoff.com arrives at the desired destination on time and reliably. We do everything we can to make this possible. That’s why we ship all orders with a shipment ID that enables seamless tracking of the item.

If you’ve placed an order in our online shop, you will automatically receive a shipping confirmation with a clickable shipment ID enabling you to track the shipment directly on the parcel service’s website. You can monitor the entire shipment process and usually also see all delivery address details stored by the parcel service.

Actively facilitate a smooth delivery of your speaker fabric

First check this address data for correctness and completeness. Should you discover an error, please contact the parcel service provider immediately and have it corrected. In most cases, this can be done directly online. However, some providers will require you to create a customer account first. 

Then take a look at the scheduled delivery date. Ideally, you should arrange for someone to be present at the delivery address on that day. If this isn’t possible, best change the delivery date or address way in advance. Alternatively, you can issue a one-time drop-off authorisation for a specific location with almost all parcel services.

Personal deliver of a shipment from Akustikstoff.com
Personal delivery of a shipment has become rare in the wake of Covid-19.

We’ve also heard that drivers simply skip deliveries that would require them to ascend several floors and simply send parcels straight to a depot for collection. While that’s surely not nice, there’s not much anyone can do about it, and it seems to happen quite often nowadays, especially in cities. With the help of the shipment ID, however, you can at least find out immediately whether your shipment has been made available for collection at a depot near you.

As you can see, the shipment ID in our shipping confirmation email is your key to a smooth delivery. Take advantage of this opportunity!

Stay on the ball

It is very important to track the shipment closely until you have received it. After all, the vast majority of problems occur on the proverbial last mile. Consistent tracking keeps you aware of whether the item is still on its way or has already been delivered, deposited in a depot or delivered to another address. In most cases, proof of delivery with the relevant details is also provided. These can help you to get possession of your parcel as quickly as possible. 

Please remember: time is short once your shipment has been sent to a depot. Items that are not collected within a maximum period of two weeks (rather less) will be returned – which is a disadvantage for either side, as you will not obtain the speaker cloth while we get charged exorbitant return fees. 

Don’t forget to check your spam folder

If you have placed an order with us online, our system generates an order confirmation email immediately. Should you not have received this email, please check the spam folder of your email programme – and continue to do so, because it is very likely that the shipping confirmation with the shipment ID will also end up there. 

The simple remedy for future cases: put the domain akustikstoff.com on your whitelist. Don’t worry, we never send advertising emails and prevent our systems from spreading spam. 

Avoid problems even before placing your order

Please make sure to check the following simple points before sending your online order. This greatly helps to ensure the quick and smooth delivery of your shipment:  

• Did you enter your e-mail address correctly and without typos when placing your order?

• Is the indicated shipping address correct, complete, and accurate?

• When ordering via Paypal Express: Is your correct delivery address on file with Paypal?

• Have you entered your telephone number for queries? A telephone number is always required for express shipments, but it can also be extremely helpful in other cases.

• Do you have a clearly legible bell plate or a company sign bearing the name in the shipping address? If not, delivery is almost sure to fail.

• Is your letterbox easy to find and clearly labelled? This is the only way of enabling the driver to leave you a message if necessary.

Additional information from Shipcloud

We process almost all our shipments with the help of Shipcloud, and our customers will also receive a message from Shipcloud if problems with the shipment are reported by the parcel service. 

If you receive such an email, please contact the relevant parcel service immediately to resolve the problem. Please remember that it doesn’t help to contact us. We do not have any information beyond the tracking information and are not entitled to act on your behalf in relation to the local delivery service. We can only help you if the shipment is lost or completely misdelivered, and, of course, we’ll be happy to do so. But fingers crossed that this won’t be necessary once you’ve taken all the precautions described above.

Eavesdropping on Frogs with Acoustic Cloth 2.0

The white-bellied frog (geocrinia alba) is an extremely tiny species that only lives in an equally tiny area. Scientists have found that total area the extremely endangered frogs occupy is less than 2 square kilometres of swampy patches in the Margaret River region in southwest Western Australia. Such an endemic species naturally attracts the interest of scientists. 

Biologists at the University of Western Australia wanted to record the frogs’ distinctive noises to to gain further insight into the behaviour of the animals. But in a wet environment, this poses particular challenges. So they got in Touch with Soundlabs Group in Mittagong, Australia, our distribution partner for the Asia / Pacific region.

“My application is probably a bit unconventional,” wrote Emily Hoffmann, PhD Candidate at the School of Biological Sciences at the University of Western Australia. “I am working with critically endangered frogs in Western Australia, and we are trying to monitor their calling behaviour remotely by using audio recorders that we can deploy into the field. I have made some water-resistant cases for the audio recorders, but I need to cover the holes for the microphones with something water resistant that won’t interfere with the recording ability.”

Leon Gross, the owner of Soundlabs Group, was more than happy to help. He provided the biologists with some of our liquid-repellent Acoustic Cloth 2.0. The specially treated cloth, which has already proven its special qualities in numerous applications such as outdoor loudspeakers or in yacht building, now covers the section where the microphone is located, so any rain or drops of water just run off while neither the technology within the cases nor the quality of the recordings are affected.

One of the recording devices equipped with Acoustic Cloth 2.0 by Akustikstoff.com. The devices are used to monitor white-bellied frogs in Western Australia.

To learn more about the white-bellied frog and the research project, which is supported by several foundations and associations, read this article, which was published by “The Naked Scientists”.

Individual Speaker Fabric Samples

You’re not one hundred percent sure which of our 42 standard colours best suits your project? You don’t trust the colour reproduction of your computer screen because you know about the pitfalls of colour reproduction within digital systems that are not consistently calibrated? Or you’d like to receive speaker fabric samples in order to get a hands-on impression of our various types of acoustic cloth before you place an order? 

It always makes sense to take a close look at the original product before making a purchase decision. But this doesn’t always require a complete sample set. That’s why we’ve decided to provide the opportunity to order individual samples directly in our online shop. 

Individual samples of Akustikstoff.com speaker fabric
Choose up to 15 different speaker fabric samples

Select up to 15 different speaker cloth samples of your choice. Combine different fabrics, such as standard, 2.0 and FR, and different colours according to your particular requirements. This opportunity is the perfect basis for an informed decision. Click here to discover our new individual sample service.

Of course, you can still order our sample sets. They are unbeatable as a source of inspiration and remain the perfect reference for all resellers. 

New international distribution partner

Our international distribution network keeps growing – much to the benefit of our customers, as it makes our products increasingly available in non-EU countries.

Akustikstoff.com distribution partner Cinert
Cinemart in Natanya, Israel, is a boutique company specializing in the planning, supervision, sale, and installation of audio-video systems, home theatre rooms, control and monitoring, smart electricity, and computer communication networks. Cinemart is a member of Cedia and leads the global scene of tailor-made private screening rooms and advanced audio-video calibration methods.
With our products also attracting increasing interest in Israel, our new Israeli distribution partner Cinemart is now making them easily and conveniently available to all customers in Israel.

»Color of the Year 2020« An Ageless Classic Blue

Trust, hope, peace, and tranquility are properties that are traditionally associated with the colour blue. No great surprise, then, that the Pantone® Color Institute has made a very classic, neutral blue the “Colour of the Year 2020”. After all, our life feels considerably more turbulent than a decade ago: Megatrends such as digitisation, along with political and social upheaval around the world, are contributing to a general longing for harmony and security. 

The calm, appealing, and confidence-inspiring deep blue colour of the year 2020 “lends itself to relaxed interaction. Associated with the return of another day, this universal favorite is comfortably embraced” says Pantone, explaining the choice of the colour that is expected to shape fashion and beauty as well as interior design and the design of electrical and electronic devices worldwide for the next twelve months. At Akustikstoff.com the colour of the year is available as “Navy Blue”.

When it comes to loudspeakers, “Navy Blue” spontaneously brings to mind JBL’s classic 43xx and 44xx studio monitors. These treasured vintage speakers still have a firm place in many studios and we have recently supplied the speaker fabric for countless refurbishment projects all over the world – evidence to suggest that blue speaker fronts will see a renaissance in loudspeaker manufacturing in 2020. 

Navy Blue, a particularly calm, balancing, and attractive hue, is a good choice for interior design purposes as well: It can be combined with black and white as well as with silver, gold, and numerous organic brown hues. 

Acoustic Cloth in Navy Blue is available as Standard speaker cloth (colour code 38), as water-repellent and stain-resistant Acoustic Cloth 2.0 (colour code 138), and as non-flammable Acoustic Cloth FR (colour code 238), which is particularly suitable for projects in public spaces.

Scandinavian Design Meets Our Acoustic Cloth

Excellent workmanship, glorious Scandinavian design, and individual, custom-made production a– that’s what the Danish carpenter Per Plauborg and his company Hifimøbler.dk stand for.

AV furniture from Hifimøbler.dk, with cover fabric from Akustikstoff.comPer’s aim is to make custom-made AV furniture of outstanding quality that meets any customer’s individual taste and demand. All furniture is tailored to the individual customer in terms of color, size, number of shelves, cable holes, and any accessories, such as drawers and legs, wheels, and wall-mounting options. This way, AV furniture from Hifimøbler.dk suits any audio and video equipment and at the same time contributes to an elegant Scandinavian home furnishing style.

AV furniture from Hifimøbler.dk, with speaker fabric from Akustikstoff.comIf you want your Hifi and video equipment as well as similar gear ready for use at all times but still perfectly hidden away in a great piece of handmade design furniture,  Hifimøbler.dk will provide the perfect solution. All furniture is prepared for inside and outside cabling within and between the modules. This way, all cables are hidden, ensuring that the living room always looks tidy and stylish. Even better, these great pieces of furniture come at a price you’d usually expect for standard run-of-the-mill pieces.

Per Plauborg uses fabrics from Akustikstoff.comPer places great emphasis on quality and the compelling craftsmanship of which he is justifiably proud. It’s no wonder, then, that he has chosen fabrics from Akustikstoff.com for the front covers of his furniture. The outstanding acoustic properties of these acoustic fabrics ensure perfect sound reproduction even if the speakers are placed behind the doors. At the same time, the specially designed  acoustic cloth lets infrared signals pass through, so remote controls even work with closed doors.

How to Tell the Quality of Acoustic Fabric

The range of textiles that are offered as speaker cloth or acoustic fabric is almost impossible to grasp, particularly on the Internet. But what makes a true acoustic cloth? Here’s a short quality checklist:

1. Maximum sound transparency

Sound measurements of acoustic fabric from Akustikstoff.comAcoustic information, i.e. sound waves, must be able to penetrate the material as freely and unchanged as possible. Unsuitable fabrics will impair the sound—especially the high and high-mid frequencies—because sound waves are absorbed or diffused. That’s why simple air permeability is no sufficient criterion for the quality of a speaker fabric or acoustic cloth.

Only lab measurements will reveal what a specific fabric is actually suitable for. A direct comparison of measuring results generated with different types of speaker fabric reveals that even a double-layer of standard Acoustic Cloth from Akustikstoff.com is more sound transparent than other polyester or linen fabrics.

By the way: Strictly speaking, fabrics like molleton, which are meant to absorb sound rather than let it through, are not an acoustic fabric but an insulating material.

2. Sufficient opacity

knitting machine for acoustic fabricA good acoustic fabric bridges the physical gap between sound transparency and opaqueness. It will usually be developed exactly for this purpose and produced on state-of-the-art machines, which make an appropriate material structure possible. After all, the fabric is used as speaker fabric, as cover fabric for acoustic elements such as absorbers, diffusers, and bass traps, for AV furniture and instrument amplifiers such as guitar amps, in the car hi-fi sector, and last but not least for cladding in shop fitting, exhibition stand construction, and interior design. Of course, there are physical limits to opaqueness. You can find some more details on this topic here.

3. Elasticity

protoype equipped with speaker cloth from Akustikstoff.comAcoustic cloth requires some tension to ensure an even surface of the cabinet front. That’s why it needs to offer exactly the right amount of horizontal and vertical elasticity. Any fabric that is too elastic will warp during processing and crinkle or buckle after a while. If it’s too rigid, on the other hand, workability will suffer, which can also cause crinkles. Standard Acoustic Cloth from Akustikstoff.com can even be easily stretched around several edges and finally stapled to the frame, as this photo of a model for the speaker cover of a high-end loudspeaker shows. With the topic of stapling we get straight to the next point:

4. Ruggedness

Extra-robust PA-Type Acoustic Cloth from Akustikstoff.comSpeaker fabric is often stretched around hard edges and stapled (watch this tutorial to see how it works), and high-quality acoustic fabrics are durable enough to stand this procedure without laddering or tearing. The weight of a certain speaker cloth usually is a good hint at its stability: Fabrics that weigh between 90 and 140 grams per square metre consist of a single layer of very thin yarn—which puts them close to nylons. No wonder they are similarly sensitive. Akustikstoff.com offers only robust double jersey with a weight of 180 grams or higher per square metre. The particularly rugged PA-Type Acoustic Cloth, which is equipped with a special protective net on the front, even reaches 550 grams without any loss in sound transparency.

5. Even structure

cheap, uneven, lightweight speaker fabricCloseup of Akustikstoff.com fabric

 

 

 

 

 

 

High-quality acoustic fabric is characterised by its even structure. It’s quite easy to distinguish good material from cheap qualities at first sight in direct comparison. Simply have a look at the image: The crinkled fabric on  the left is an imported fabric from somewhere in East Asia. It is offered at prices of about 8-10 euros per square meter by various stores on the Internet and on Ebay without any information about the origin and the manufacturer of the fabric. On the right there’s a photo of the more expensive proprietary fabric made in Germany by Akustikstoff.com–of course taken from the same angle and from the same distance.

6. Flawless workmanship

Faults in cheap speaker fabricAcoustic cloth is a rather delicate fabric, so only high-quality raw materials and perfect processing in all steps can prevent quality defects. And as always, careful processing and consistent, fastidious quality control have their price.
An example of common quality defects are ugly traces of worn needles. Actually, this should be an absolute no-no for any supplier. Such fabrics are clearly seconds that any professional customer will reject. Unfortunately, such defects are quite common with low-cost no-name speaker fabrics such as the budget cloth in our example. Taking a look at the fabric at backlight conditions clearly shows the sloppy work. If you attach some importance to detail in the realm of your hi-fi and AV equipment, you will most probably not be pleased with such speaker fabric.

Uneven colouring due to the use of non-mixed, uncontaminated yarn is another quality flaw that can often be observed with cheap speaker cloth. It is particularly noticeable with dark colours, when somewhat lighter stripes cause an irregular surface. That’s why acoustic fabrics from Akustikstoff.com are exclusively made from high-quality, white polyester yarns.

7. HSE and social responsibility in production

Yarn for Akustikstoff.comAzo dyes, formaldehyde, heavy metals … There’s quite a number of hazardous chemicals that may be hidden in textiles, and the use of some of them is still not sufficiently regulated by law. Even worse, the main reason for the use of these questionable substances, which are still often found in imported textiles, is to ensure cheapest possible production processes. Questions about potential risks for humans and the environment and about the working conditions under which these fabrics are produced are simply ignored. At first glance, the end product may seem “inexpensive”, but closer inspection often brings a different picture to light.
That’s why all fabrics in the product range made by Akustikstoff.com are certified according to the OekoTex 100 standard. This long-established standard contributes to high and effective product safety. The test criteria and limit values often go well beyond the national and international requirements, extensive product controls and regular company audits ensure compliance with the strict guidelines.

Great Metallic Lustre, 9 Colours: Metallic Line Extended!

Akustikstoff.com Metallic Line speaker cloth comes in nine great coloursA speaker cover that matches the trendy rose gold of the iPhone? Why not! What might have been a dream for some of us has now become possible. We have extended the Metallic Line of our Acoustic Cloth with another five amazingly authentic, shiny colours. The truly unique speaker fabric now comes in nine highly attractive metallic hues. In addition to classics such as gold, silver, and copper, there’s speaker cloth in gorgeous steel blue, enormously authentic antique bronze, and brightly shining aluminium, among others.

Akustikstoff.com Metallic Line speaker cloth closeupMetallic Line acoustic fabric opens up completely new possibilities for loudspeaker, absorber, and studio design. The acoustically transparent, Oecotex-certified fabric also comes in particularly handy as a decorative fabric wherever a sophisticated and stylish metallic lustre is required—in interior design, fair stand construction, and shipbuilding, for instance.

Best visit the online shop for an overview or, even better, order a set of sample swatches immediately!

B&O Beolab 8000 Speakers Looking Like New Again

Beolab8000-with-akustikstoff-acoustic-clothThe Beolab 8000 from Bang&Olufsen an iconic example of elegant styling and good performance . It was one of the most successful B&O loudspeakers ever, remaining in the range for 18 years without any major change. Many music and home theatre lovers still hold the Beolab 8000 in the highest regard and consider it a purchase for life—no wonder in view of the whopping £2940 you had to cough up per piece in 2010 , which was the last year of production.

 

But as the saying goes, nothing is perfect. In the case of the Beolab 8000, the delicate speaker grill cloth was a definite downside. It didn’t take long and the speaker fabric looked much older than it actually was, which compromised the design (and reduced the value) of the speakers considerably.

 

refurbishment-of-beolab8000-with-akustikstoff-acoustic-fabricLuckily, it is quite easy and inexpensive to return the speaker front to its former glory. Our standard acoustic cloth does a perfect job on the Beolab 8000. Even better, the readily available 42 colours of Akustikstoff.com speaker fabric provide the opportunity to achieve a totally new, individual visual appearance and adapt them to your personal taste in a very unique way.

 

 

 

Beolab8000-with-akustikstoff-acoustic-cloth   Beolab8000-with-akustikstoff-acoustic-cloth

Speaker refurbishment of B&O Beolab 8000 with black Akustikstoff.com acoustic speaker cloth.

Opacity of Speaker Fabric – Technical Basics and Best Practice

You can’t eat the cake and have it:
Why an acoustically transparent fabric can’t be 100 percent opaque

“Is your Acoustic Cloth really opaque?” That’s a question our customers ask quite frequently. After all,  speaker fabric from Akustikstoff.com is primarily used to hide loudspeakers, AV equipment or whatever else as elegantly as possible without impairing acoustic transparency.

Strong contrast leads to marking with any acoustically transparent fabric.

Marking with acoustically transparent fabric: a deep black background remains somewhat visible under white speaker fabric.

The theoretical ideal is obvious, of course: absolute acoustic transparency plus absolute opacity (i.e., the opposite of transparency) at the same time. Unfortunately, the laws of physics counteract this ideal, since both sound and light are waves – temporal and local periodical changes of a physical quantity in the dry language of physics.

 

It’s all about waves

As sound propagates through the mechanical deformation of a medium, in our case by changes in air pressure, everything that is in the way acts like a kind of barrier: It is moved itself and starts vibrating, this way absorbing energy from the impinging waves, and it reduces the amplitude, i.e., the magnitude of the oscillation. That’s why a completely closed, airtight surface always attenuates sound waves. Depending on the material, the sound is “swallowed” by resonance and usually reflected or diffused to a certain degree at the same time.

Put the other way round, high acoustic transparency is simply impossible without openings, through which air – and thus the sound – can penetrate. Even the smallest apertures, however, can also be penetrated by visible light, which has a much shorter-wavelength. This effect can be experienced in a striking manner in a completely darkened room as soon as the door does not close completely on all four sides of the door frame.

 

Crucial: the higher frequency range

Insufficient acoustic transparency is most noticeable in the higher frequencies within the normal range of human perception: the short-wave, low-energy high frequencies and high mids are attenuated first, while energetic, relatively long-wave bass frequencies are noticeably less hindered. In practice, this means that unsuitable or inferior cloth for acoustically active elements usually eliminates exactly those acoustic frequencies that are of utmost importance for a sophisticated, well differentiated sonic image.

 

Exploring the limits of physics

The secret of high-quality Acoustic Cloth is that it lets sound waves pass through virtually unimpeded but blocks the light waves as much as possible. At Akustikstoff.com, we’ve performed a lot of research and development work to get this physical balancing act done in the best possible way. Nevertheless, it is in the nature of things that both objectives can’t be achieved to the full at the same time. In addition, there’s a third, no less important aspect to be considered in the development of loudspeaker cloth, and we’ve put quite some effort in it: robustness. That’s why all covering fabrics from Akustikstoff.com are remarkably durable and are very easy to process while they feature the highest possible opacity and excellent sound transparency. We’ll go a bit more into details on this in a separate article in the near future.

 

The opacity of dark speaker fabric is higher than that of brightly-coloured speaker cloth.

In pure incident light, dark colours tend to be more opaque than bright colours. Here in comparison: black and white.

Three typical problems with acoustically transparent fabrics

Typically, problems with the opacity of acoustically transparent covering fabrics occur when there’s a strong contrast between a speaker cloth in a light colour and rather dark objects behind it, when there’s light from behind, and when a source of strong incident light is pointed directly at the surface of the Acoustic Cloth.

 

Decrease contrast, increase distance

The most important measure to prevent translucency is to keep the contrast between the covering fabric and the objects behind it as low as possible. It is worthwhile, for instance, to varnish the cover frames and fronts of speaker cabinets and sound absorbers, in matt white if they are to be covered with white acoustics.

In addition, a larger distance between the background and the Acoustic Cloth helps prevent translucency. If, however, the speakers installed in a white housing have pitch black diaphragms, these will nevertheless remain visible under most lighting conditions. In some cases, this may even be desired since the effect can also be very elegant depending on taste and design. A similar transparency effect may occur with absorbers: If grey absorber material (think Basotect®) is covered with a piece of white Acoustic Cloth, the surface will often not appear in pure white, but rather in light grey.

Contrast of black and white with speaker cloth

The two pieces of speaker fabric illustrate the intensive contrast of black and white. However, the contrast between black and yellow is even stronger.

Contrast of black and yellow with Acoustic Cloth from Akustikstoff.com

The strongest contrast: black and yellow – in this case illustrated with two pieces of Acoustic Cloth from Akustikstoff.com

By the way, the contrast between black and yellow is even stronger – hence the colour combination of yellow and black for safety markings.

 

Avoid translucency from behind

A certain degree of optical transparency remains unavoidable if acoustically transparent fabric is exposed to backlight: Similar as with a curtain, the contours – or even more – of objects placed behind a piece of Acoustic Cloth will become recognizable if light is permeating the fabric directly from behind. This problem occurs mainly with AV furniture such as soundboards, soundbars, and lowboards. To avoid this “curtain effect”, place your AV furniture cleverly to prevent daylight from shining through and don’t put any artificial light sources behind the furniture.

 

Strong incident light leads to transparency

Strong, bundled light that is directed right at the front on the speaker fabric can also lead to transparency effects: The light penetrates the Acoustic Cloth, is reflected by the objects behind the cloth in the opposite direction, permeates the fabric again and this way leads to a certain degree of transparency. Such effects can be prevented by not pointing any light source directly at the fabric, rather using diffuse light, and ensuring a lateral light incident.

 

Heavy stretching makes speaker cloth increasingly less opaque.

The “curtain effect”: The higher the tension under which the elastic speaker fabric was mounted, the more transparent the speaker cloth becomes. The photo shows a piece of heavily stretched Acoustic Cloth with bright sunlight from behind.

Mind the tension                

The tension that is applied when processing our acoustic fabric is has a considerable influence on its optical transparency: The more intense the elastic fabric is stretched, the wider the meshes become. While heavily stretching a meshed fabric may improve its acoustical transparency (you won’t really need to do this with Akustikstoff.com Acoustic Cloth, as the utmost sound transparency was our primary design objective), it also changes the opacity of the material. This can lead to the so-called “curtain effect”: especially in the case of backlight, the fabric becomes progressively less opaque with growing tension. In such a case, it is necessary to experiment somewhat before final assembly.

 

Use two layers?

Depending on the application, it may be possible to use two layers of Acoustic Cloth to improve the opacity of the speaker fabric. The acoustic losses, an additional reduction by approx. 1-2 dB at approx. 8-9 kHz, are well within the acceptable range. Even if you use two layers of our Acoustic Cloth, acoustic transparency remains distinctly higher than that of other single-layer materials*. However, it is necessary to work very carefully in order to avoid the dreaded moiré patterns that the fine structures of the fabric may cause when they’re spatially overlapped. To a certain extent, this can be avoided by using the more structured surface of the fabric as the outer side at the front and the second layer with the slightly smoother side outwards. Then twist the two layers of fabric against each other until the moiré effect disappears. Again, some experimenting prior to the final fixation of the speaker fabric will ensure an optimal result.

*Schmid, Johannes: “Messungen zur akustischen Durchlässigkeit verschiedener Textilien“. Jade Hochschule University, Oldenburg, Germany, September 2015

Server Migration

akustikstoff-server-umzugTo keep our online shop for acoustic cloth as fast and comfortable as possible, we will migrate our content to a new server on Tuesday, 09. May 2017. Shop, blog, and email may be down between 10.30 a.m. and 11.30 a.m. In urgent cases, please give us a phone call. We apologise for any inconvenience.

Wall Unit With Value Added

Mit Metal-Line-Akustikstoff von Akustikstoff.com zum Phonomöbel aufgewerteter SchrankKurt Büchler used our acoustically transparent Metal Line Speaker Cloth with its elegant metallic shine for a pretty smart DIY solution to turn his living room cabinet into a highly attractive phono wall unit.

The speakers are nicely hidden behind the silver speaker fabric, the cabinet appears much more elegant and has turned into a piece of true phono furniture that suits the room well and provides value added.

Musikmesse 2017 – Review

akustikstoff-musikmesse2For the first time ever, Akustikstoff.com took part in the Frankfurt Musikmesse.  Together with the studio builder Professional Media Solutions, we had a share of the joint stand provided by  ES Pro Audio, and we presented our acoustic fabrics to international trade and industry professionals. We introduced six new colours and talked to numerous studio builders, acoustic experts, speaker and equipment manufacturers, stage builders, and, of course, musicians.

The response was consistently positive and encouraging. It confirmed that our range of acoustically transparent fabrics is truly unparalleled worldwide. Professionals were especially impressed by the remarkable properties of our Acoustic Cloth 2.0, which is water-repellent , stain-resistant, and flame-retardant.  Our newly developed PA-Type Acoustic Cloth also attracted great attention – as well as Acoustic Cloth Custom, the custom-dyed speaker fabric that is available in all Pantone™ textile colours starting at as little as one single roll.

Here’s a couple of impressions from the busy days in Frankfurt:

Akustikstoff.com auf der Musikmesse 2017

Akustikstoff.com @ Musikmesse 2017 – Stand construction on Tuesday evening. Will everything be ready in time?

Akustikstoff.com @ Musikmesse 2027 – Stand construction: metres of acoustic fabric still need to be stapled to the wall coverings

Akustikstoff.com @ Musikmesse 2027 – Stand construction: metres of acoustic fabric still need to be stapled to the booth wall coverings

Akustikstoff @ Musikmesse 2017 – Stand construction.

Akustikstoff @ Musikmesse 2017 – Stand construction. Later in the evening, things are slowly taking shape, and Steve from Professional Media Solutions is taking some photos.

Akustikstoff @ Musikmesse 2017 – During stand construction we suddenly realise that we did not have a proper sign. In a cloak-and-dagger operation, we have it designed and made at our premises on Tuesday evening …

Akustikstoff @ Musikmesse 2017 – During stand construction we suddenly realise that we did not have a proper sign. In a cloak-and-dagger operation, we have it designed and made at our premises on Tuesday evening …

Akustikstoff @ Musikmesse 2027 – Production of the signs for our booth using our laser

Akustikstoff @ Musikmesse 2027 – Production of the signs for our booth using our laser

Akustikstoff @ Musikmesse 2017 – The signs fresh from the laser

Akustikstoff @ Musikmesse 2017 – The signs fresh from the laser

Akustikstoff.com @ Musikmesse 2017 - The sign, finally mounted at the fair stand

Akustikstoff.com @ Musikmesse 2017 – The sign, finally mounted at the fair stand

Akustikstoff.com @ Musikmesse 2017 – Outside view of the fair booth

Akustikstoff.com @ Musikmesse 2017 – Outside view of the fair booth

Akustikstoff.com @ Musikmesse 2017 – Our acoustic fabrics on display

Akustikstoff.com @ Musikmesse 2017 – Our acoustic fabrics on display

Akustikstoff.com @ Musikmesse 2017 – Great colours on display

Akustikstoff.com @ Musikmesse 2017 – Great colours on display

Akustikstoff.com @ Musikmesse 2017 – Nicely looking absorbers fitted with our speaker fabric

Akustikstoff.com @ Musikmesse 2017 – Nicely looking absorbers fitted with our speaker fabric

Akustikstoff.com @ Musikmesse 2017 – Absorber wall equipped with acoustic cloth

Akustikstoff.com @ Musikmesse 2017 – Absorber wall equipped with acoustic cloth

Akustikstoff.com @ Musikmesse 2017 – Our stand host Erich Strich playing a spontaneous guitar solo. Impressive!

Akustikstoff.com @ Musikmesse 2017 – Our stand host Erich Strich playing a spontaneous guitar solo. Impressive!

Carlos Juan @ Akustikstoff.com's fair stand dat Musikmesse 2017

Akustikstoff.com @ Musikmesse 2017 – Visit from the master himself: Our friend Carlos Juan, the brain behind the famous acoustic guitar pickups and amps, which are used by Eric Clapton, Mark Knopfler, John McLaughlin, Pat Metheny, Carlos Santana, John Fogerty, George Benson … (the list goes on and on).

Akustikstoff.com @ Musikmesse 2017 – Ryan from Mäag Audio, Benny and Robert from Professional Media Solutions

Akustikstoff.com @ Musikmesse 2017 – Ryan from Mäag Audio, Benny and Robert from Professional Media Solutions

Akustikstoff.com @ Musikmesse 2017 – Cliff from Mäag Audio fighting with a power cord

Akustikstoff.com @ Musikmesse 2017 – Cliff from Mäag Audio fighting with a power cord

Akustikstoff.com @ Musikmesse 2017 – Taking souvenir photos at the end of the fair

Akustikstoff.com @ Musikmesse 2017 – Taking souvenir photos at the end of the fair

Akustikstoff.com @ Musikmesse 2027 – The guys from Mäag Audio, Professional Media Solutions, and Akustikstoff.com

Akustikstoff.com @ Musikmesse 2027 – The guys from Mäag Audio, Professional Media Solutions, and Akustikstoff.com

Akustikstoff.com at Musikmesse 2017

musikmesse2017Visit us at Musikmesse 2017 in Frankfurt, Germany, on 4 – 8 April.

You’ll find us in hall 9 on level 0 in the Professional Media Solutions section of the Erwin Strich ES-ProAudio joint stand F40.

Musikmesse provides an ideal opportunity for a first-hand impression of our acoustic fabrics in all available colours and variants. Professional Media Solutions will also display several demonstrative application examples equipped with our speaker cloth.

Why not drop by at our stand, discover numerous applications of our speaker fabrics in a professional sound studio environment, and receive a complete sample swatch with all new colours that will be available just in time for the fair?

We are looking forward to meeting you in hall 9.0 at stand F40 and to a stimulating conversation!

Add a Touch of Individual Colour!

akustikstoff-custom-as-colourful-as-natureSpring has come and is getting us all in the mood for fresh and vibrant colours. We’ve drawn on the colour explosion around us to come up with something as diverse as a flowerbed: Acoustic Cloth Custom, the acoustic fabric dyed in the colour of your choice. 

Forget about colour limitations when you’re looking for a quality acoustically transparent fabric for speaker grilles as well as for AV furniture and wall panelling in sound studios, showrooms, and exhibition booths! Simply have the fabric dyed in the colour your design concept requires.

Our Acoustic Cloth Custom meets the needs of any studio designer, exhibition stand builder, and interior designer: The fabric makes it possible to design rooms and exhibition booths in the clients’ corporate colours without any compromise, because Acoustic Cloth Custom is dyed according to your colour specifications.

Acoustic Cloth Custom is the speaker fabric that perfectly suits your individual colour and design concept for all speakers, absorbers, diffusors, and acoustically transparent panels. Wherever an acoustic fabric of outstanding quality  is required, Acoustic Cloth Custom ensures a unique and harmonious appearance – with all the beneficial properties that characterise our products. When you choose Acoustic Cloth 2.0, the fabric is even stain-resistant, water-repellent, and flame-retardant.

All Pantone™ TC and TCX colours can be applied – making it possible to reproduce virtually any colour. And even better: Your individual colour is available from as little as a single roll of 46 metres. 

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