Changes to our products - please read this before purchasing!

Delays on new orders until 29th July.

Binary Diffuser

Binary Diffuser

$229.00 AUD $0.00 AUD

The Binary Diffuser, or more accurately referred to as a Binary Sequence Resonant Absorber (BSRA) is a perforated panel designed to preserve and enhance high frequencies in a space whilst controlling energy in the low to mid frequency bands.

This resonant absorber provides high levels of absorption in the low to low-mid frequencies similar to the V Panels. Above these frequencies there is tapering absorptive performance which allows for perceptually diffuse reflections up to 7kHz (approximately).

Suitable for:
Premium: Home studios, HiFi rooms, home theatres, live performance rooms, restaurants and bars.
Ultra: Critical listening spaces such as home and professional recording studios, mastering studios, HiFi rooms, home theatres and live performance rooms.

Exposed ply with fabric behind ply face or no fabric option. Exposed polyester back.

Premium: 1222x594x100mm (+/- 3mm)
Ultra: 1222x594x200mm (+/- 3mm)

Premium: (still to come)
Ultra: Absorption 80-300Hz, Diffusion up to 7kHz approx. 

Premium: 8kg
Ultra: 11kg

Calculate your room volume (LxWxHm) to match the recommendations below. Please note this guide is general as varying surfaces areas and room use may need to be factored in. Contact us for a free consultation if unsure.

20m3 = 4x diffusers
30m3 = 6x diffusers
40m3 = 8x diffusers

Wait times: Orders generally take between 1-2 weeks, sometimes longer depending on demand and supply levels. Please contact us first if you would like an ETA.

Shipping calculated at checkout.


Hybrid performance designed for critical listening spaces as well as live performance rooms.

As we control reverberation times further and further by way of absorption, acoustic defects which may have previously been disguised, become more obvious to our ears. In which case, diffusion is often use to preserve and enhance the ambience of a space, whilst still controlling the sound energy and are often used in conjunction with broadband absorption treatment.
The Binary Diffuser provides control of low-mid frequency energy and decay times whilst preserving and enhancing mid to high frequency content.  We recommend this be used in conjunction with broadband absorbers (such as the Ultra V Panel) for an overall balanced room response.

No proximity effect

Does not suffer from proximity effect from sound sources unlike other diffusers.

Hybrid design

Combining both low-mid frequency absorption and high frequency diffusion in the one product.

Bright sounding

Effective sound control whilst maintaining room presence suitable for a number of live room situations.

Variety of applications

Effective in crowded public spaces as well as critical listening spaces.

Responsable manufacturing

Made mostly from recycled or natural materials and are all locally sourced. Made in Melbourne.

Professionally made

Handcrafted with years of experiences, Verbox products are presentable, effective and affordable.

Brighten it up

Preserve presences and clarity in a space with the Verbox diffusion range. Over absorption can leave your room sounding ‘dead’ or claustrophobic resulting in an uncomfortable listening environment. Used in conjunction with diffusion, you can achieve a well balanced, pleasant sounding room.

Best of both worlds

Binary Amplitude Diffusion has been used in music studios around the world for quite some time because of its effective and versatile use in acoustical situations. Providing both absorption and diffusion provides a popular use when treating larger spaces.

Unique product

The binary sequence of this design creates a variable impedance across the numerous holes resulting in diffusion. Even though this design may not be as effective as reflective phase grating (like the QRD-fuser), it does provide numerous advantages such as those mentioned above; hybrid diffusion/absorption, closer proximity and versatility in use.

Please keep in mind that the data provided is mostly self-tested at Verbox and is limited in accuracy as we move down the frequency spectrum due to room limitations (200Hz downwards). We will be updating the adjustments as we continue to sample our products in various rooms to collect a larger data set.

Black (different fabric to colours)

White (different fabric to colours)



French Navy







We offer a wide range of products to suit a variety of listening environments. To best help you decide what you need, the simplest way is to email us ( with the following information.

  • Photo’s, room dimensions and details of the surfaces areas

  • Your ideal budget

  • Your location (will effect recommendation if not in Melbourne)

  • What the room is being used for

  • Any preference of colour or panel style (fabric wrapped/framed)

  • In need of installation or not

  • Room test data (waterfall graph etc) if you have it - not essential

With this information, we can provide a general recommendation for your room. Depending on your budget, location and your confidence with the process, we may offer a free site visit. Although we do recommend when possible for us to come out and test your rooms frequency response to get a more detailed assessment of your room. You can purchase this in the services section under ‘Room test and analysis’.

We also offer a range of packages under the ‘Packages’ section. These are discount packs to suit most small, medium and large rooms.

Verbox products are made to an exceptionally high standard using very high quality materials. We use a heavy cotton drill (yet still breathable) fabric, polyester acoustic batts (custom made for Verbox and E0 emissions rating), structural ply and MDF boards (also E0 emissions rating) and use bracing on all of our products when necessary.

However, they are still subject to damage by in-proper use and care. So we suggest you take the following precautions.

  • Wipe fabric surfaces with a clean, damp, lint free cloth to remove any dust. Blowing with a blower or vacuuming is also fine but less efficient.

  • DO NOT hold products from the front fabric face as your fingers around the frame can stretch the fabric.

  • For products that have rear support bars: only hold from one end of the bars where they join the panel. DO NOT hold them from the middle as they can easily pull apart. They are only there for additional support and are structurally sound if used correctly.

  • Also for products with rear support bars: when DIY installing, you must use 2x hang points (screws) to hang from on the wall and they must be 500mm apart (Lite Panels are an exception and can be used with 1x screw if you wish). Hanging too close together or just from 1x screw will result in the bar pulling apart from the panel. Again, this is normal and is not an issue if used correctly. Refer to the ‘Step-by-step Guide’ on the ‘Wall Kit’ product page for more information.

  • Do not stack heavy items on V Panels as they are not designed to hold a lot of weight and it may sag the fabric. The V Trap and Perf Traps are an exception but just use common sense.

  • Keep all Verbox products in a dry, dust free space to avoid general wear and tear. Avoid moving and dragging fabric wrapped products on hard or rough surfaces as it will scuff the fabric and could potentially tear.

  • Avoid bumping or knocking ply framed products as the ply is softer than other woods and will mark easily.

  • Avoid puncturing V Traps and Perf Traps as they are designed to be completely sealed and will lose their effectiveness.

  • Avoid placing products in direct sunlight to avoid fabric fading.

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