Effectively reduces reverberation time
Avoids disturbing reflections & flutter echoes
Significantly improves speech intelligibility
Effective Sound Absorber for the Wall
The wall sail is made of acoustically highly effective HOFA PureAkust and stylishly counteracts unwanted reverberation in your room. With the optionally available wall mounting system HOFA PureFix, the acoustic effectiveness can be significantly increased.
Stylish Acoustic Element
The minimalist design of the HOFA wall sail allows it to be used as a decorative wall element. It also pairs very well with the HOFA ceiling sail and the HOFA Acoustic Room Divider, which are made from the same material.
Areas of application
- Stylish acoustic measure
- The perfect complement to the HOFA ceiling sail and HOFA partition
- Minimization of disturbing sound reflections on walls
- Reduction of reverberation time
- Increase in speech intelligibility
- Einstellung des Absorptionsverhaltens mit HOFA PureFix (optional erhältlich)
- Offices
- Recording studios
- At home
- HiFi rooms
- Production halls
- Gastronomy / Events
Frequently asked questions about the HOFA Wall Sails
What are HOFA Wall Sails and what are they used for?
HOFA Wall Sails are stylish, highly effective sound absorbers made from our sustainable PureAkust material, which are mounted to the wall using the included fastening system. They achieve the highest sound absorption class A and reduce reverberation, flutter echoes, and disruptive reflections – significantly improving room acoustics and speech intelligibility.
They are used wherever better room acoustics are required: in offices, living and hi-fi rooms, recording studios, podcast and streaming setups, in restaurants, or in educational institutions.
In what frequency range are HOFA Wall Sails effective?
HOFA Wall Sails are effective from approx. 200 Hz and absorb very effectively across the entire mid and high-frequency range – exactly where the frequencies of speech and most musical instruments lie. In typical applications, they achieve the highest sound absorption class A according to EN ISO 11654.
With the magnetic HOFA PureFix mounting, the distance to the wall can be increased – this can additionally enhance effectiveness in the lower frequency spectrum.
What does sound absorption class A mean?
The sound absorption class is a standardized classification according to EN ISO 11654, which indicates how much sound a material absorbs. The scale ranges from Class A (highest absorption) to Class E (low absorption).
Class A means that almost all incident sound is absorbed – making a material of this class one of the most effective sound absorbers available. HOFA Wall Sails achieve this value in typical applications, ensuring a particularly effective reduction of reverberation and disruptive reflections.
How do I improve speech intelligibility in my room with HOFA Wall Sails?
Poor speech intelligibility and an overall unpleasant noise level are usually caused by excessively long reverberation and uncontrolled reflections. This is exactly where HOFA Wall Sails come in: they absorb incoming sound over a broadband range, ensuring the acoustic calming of the room. This gives you a clearer, more intelligible sound profile – whether in a conversation, a video conference, or during a podcast.
For optimal results, we recommend mounting the wall sails as close as possible to the sound source (e.g., next to the desk, meeting table, or microphone position).
How do I improve the acoustics in my recording studio or hi-fi room with HOFA Wall Sails?
In recording studios and hi-fi rooms, a controlled reverberation time is crucial for a precise, transparent sound profile. If it is too long, details blur, stereo imaging becomes unfocused, and mixing decisions or listening enjoyment suffer. HOFA Wall Sails effectively reduce reverberation across the entire mid and high-frequency range and additionally absorb disruptive first reflections from the wall before they reach the listening position.
For optimal results, mount the wall sails at the first reflection points of your room (we would be happy to advise you on this). With the PureFix mounting set, the effectiveness in the lower frequency range can be improved by increasing the distance from the wall.
How are HOFA Wall Sails mounted?
You have two options for mounting:
With sawtooth hangers: The simplest and most affordable option – the wall sails are mounted close to the wall. Ideal if you want a simple, unobtrusive installation.
With PureFix: Here, the sail is mounted using four magnetic brackets with a distance of up to 9 cm from the wall. The wall distance additionally improves effectiveness in the lower frequency range.
Both variants can be implemented quickly and without special tools. You can find detailed step-by-step instructions in our downloads.
In addition to the two mounting options described, it is also possible to glue or screw the sail directly to the wall. We are happy to provide the appropriate mounting hardware upon request.
How many HOFA Wall Sails do I need for my room?
This depends on several factors: room size, ceiling height, existing furniture, and above all, how the room is used. A recording studio or hi-fi room generally requires more absorbing surface area than an office or meeting room, as a shorter reverberation time is required here.
As a rough guide: for smaller rooms, 1–2 small to medium-sized wall sails are usually sufficient to achieve a noticeable improvement. For larger or acoustically more demanding rooms, correspondingly more are needed.
We would be happy to advise you on how many wall sails your room needs and recommend the optimal placement for the best possible result. Simply contact us.
Can I combine HOFA Wall Sails with other acoustic modules?
Yes, very well in fact!
Within the HOFA Style-Line, the wall sails are optimally matched to HOFA Ceiling Sails, Room Dividers, and Desk Dividers – they are made of the same material and match perfectly visually.
For more demanding acoustic requirements, such as in recording studios or hi-fi rooms, they can also be excellently combined with modules from the HOFA Studio-Line – for example, with Basstraps for the low-frequency range or Diffusers for a more natural sense of space.
Wall sails are also an ideal addition in combination with HOFA Acoustic Curtains: while the curtains absorb reflections on window surfaces and reduce noise, the wall sails take over sound absorption on the walls – creating well-balanced room acoustics all around.
What material are HOFA Wall Sails made of?
HOFA Wall Sails are made of HOFA PureAkust, a highly effective absorber material that is largely made from recycled PET bottles. For example, a wall sail measuring 120 x 120 cm contains approximately 51 recycled PET bottles.
PureAkust is not only acoustically highly effective but also has many other positive properties:
- tested for harmful substances and allergy-friendly
- free of formaldehyde and binders made from glass or rock wool
- odorless and bacteriostatic
- certified according to Oeko-Tex Standard 100 (highest product class)
- flame retardant (fire protection class B1 according to DIN 4102-1 and EN 13501-1)
This means HOFA Wall Sails combine high acoustic effectiveness with sustainability and health safety – manufactured in Germany.
What should I look out for when buying wall sails?
When buying wall sails, you should pay particular attention to these points:
Material optimized for acoustics: Many wall sails consist of simple insulation materials that were not originally developed for room acoustics. HOFA Wall Sails, on the other hand, are made from a material specifically optimized for acoustic applications, achieving significantly higher absorption values (up to 55% more than melamine resin foam and up to 70% more than convoluted foam of the same thickness). In addition, it is durable, tested for harmful substances, allergy-friendly, and certified according to Oeko-Tex Standard 100.
Reliable measurements: Ensure that the acoustic effectiveness is proven by independent measurements – ideally sound absorption class A according to EN ISO 11654, supplemented by absorption diagrams from the reverberation room method according to ISO 354.
Manufactured in Germany: There are many cheap imports on the market where quality, freedom from harmful substances, and actual acoustic effectiveness often cannot be verified. HOFA Wall Sails are manufactured entirely in Germany – with controlled materials, high processing quality, and short transport routes.
Consultation and service: Ensure that the provider offers individual acoustic consultation and personal customer service – this way, you always have a reliable point of contact and invest in effective and sustainable solutions.
Are HOFA Wall Sails free of harmful substances?
Yes, absolutely!
HOFA Wall Sails are made of PureAkust and are harmless to health – especially compared to acoustic products made from glass or rock wool. They are tested for harmful substances, odorless, free of formaldehyde, bacteriostatic, and allergy-friendly.
The PureAkust material also meets the Oeko-Tex Standard 100 (highest product class).
What fire protection class do HOFA Wall Sails meet?
HOFA Wall Sails are flame retardant (B1) according to DIN 4102-1 and EN 13501-1.
Where is the HOFA Wall Sail manufactured?
HOFA Wall Sails – like all other acoustic modules from HOFA – are manufactured in Germany.
The HOFA Style-Line
The products of the HOFA Style-Line combine acoustic effectiveness with a subtle appearance. Ceiling sails, wall sails, partitions, and desk dividers are made from the same highly absorptive material and therefore match each other perfectly.
With the products of the HOFA Style-Line, we can also fulfill a wide range of individual design requests (colors, coatings, special sizes, and shapes) upon request.
A HOFA wall sail measuring 120 x 120 cm is made from 51 recycled PET bottles
Sustainable acoustics – made in Germany
At HOFA-Akustik, we consider sustainability an integral part of our product development by using resources such as wood, climate-positive natural fibres and recycled materials. In addition, we work with local partners to manufacture our products in an eco-friendly way and keep transport distances short.
Acoustic effectiveness
Despite its slim material thickness of 40 mm, which gives the wall sail a subtle appearance, HOFA PureAkust offers outstanding absorption performance. With the optionally available HOFA PureFix mounting set, the distance of the sail from the wall can be increased, significantly improving absorption at low frequencies.
In typical applications, the wall sail meets sound absorber class A (according to EN ISO 11654). It has significantly higher absorption than industry-standard products (up to 55% higher compared to melamine resin foam and up to 70% higher compared to convoluted foam of the same thickness).
Measurement of sound absorption in the reverberation room according to ISO 354:2003
Practical sound absorption coefficient evaluated according to ISO 11654
Wall Mounting Set HOFA PureFix
For Professional Applications in the Recording Studio
- Data sheet
- Installation manuals
