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Nankarrow QuadraFuse QD1 Premium Spruce Wood Acoustic Diffuser

(5 customer reviews)
In stock
  • Made in Germany
  • Fully CNC Laser Cut, With No Imperfections
  • Two-dimensional QRD diffuser (based on prime number 7) with hemispherical sound scattering
  • Easy to install
  • Material: Taiga Spruce Wood
  • Dimensions: 500mm x 500mm x 110mm
  • Colour: Natural, Brown Oak

13,600.0015,800.00 incl GST

Bulk/Project Enquiry

Product Description

Nankarrow QuadraFuse™ QD1 is a two-dimensional diffusion panel that is best applied to walls or ceilings, providing multi-reflection on both vertical and horizontal planes in sound critical spaces. It performs on mid and high frequencies, brightening and clarifying sound.

Don’t risk missing results by simply putting random blocks in a series that are not calculated, as that will not give even acoustic diffusion. Make the room sound bigger with TRUE diffusion of high frequencies with our precision-cut, 23-root, two-dimensional Quadratic Diffusor.

So, let us explain Acoustic Diffusion.

What is diffusion?

While absorption is vital for any room an area that can’t be ignored is diffusion. Diffusion is the even spreading of sound waves from a direct source. So, if you have a small space diffusion can give the idea of a room being larger than it actually is by providing increased natural ambience.  By having no absorption or diffusion installed in a space speech intelligibility is reduced and sound quality is degraded and while absorbent materials will help a great deal in solving that dedicated well designed diffusion such as our Nankarrow QuadraFuse™ acoustic diffusor will be much more effective.

Nankarrow QuadraFuse™ Acoustics diffuser panels gives your recording studio or listening environment a sense of spaciousness in your music by addressing the above issues without deadening the room too much. Sound diffusers scatter sound across two planes: horizontal (left & right) and vertical (up & down), which is called acoustic diffusion. This two-dimensional scattering broadens the soundscape and makes a room sound larger.

Nankarrow QuadraFuse™  diffusers you can be sure that your speakers or monitors don’t have a bommy sound , with an ill-defined mid-range, an aggressive high end and an uneven bass response  where some notes boom out and others seem almost to vanish.

Nankarrow QuadraFuse™ can be used in control rooms, broadcast studios, live rooms, home theatres – anywhere a range of instruments and voices are recorded or heard, rehearsal rooms and other performance spaces.

Nankarrow QuadraFuse™  is made from from high quality Taiga Spruce Wood  form Russian Snow Forest. It’s instantly alluring design results from unique research based on the acoustic properties of the wood. Nankarrow QuadraFuse™  to act as a diffuser, letting you tame reflections without rendering your room dead.

The panel’s elegant design enhances the visual appearance of any room.  Thanks to its unique look and versatility, the Nankarrow QuadraFuse™ is one of our best sellers.

Nankarrow QuadraFuse™ is made from high quality Taiga Spruce Wood from the snow forests of Russia, the QuadraFuse™ is notable not only for its effective performance in solving problems like lack of speech intelligibility or music definition, but also for its premium design, gives interior decorators exciting new possibility for creative acoustic design that fits perfectly in any kind of room.

Nankarrow QuadraFuse™ QD1 2ft x 2ft Acoustic Diffuser Features:

  • Made in  Germany
  • Fully CNC Laser Cut, With No Imperfections
  • Two-dimensional QRD diffuser (based on prime number 7) with hemispherical sound scattering
  • Design frequency: 1212 Hz
  • Upper limit frequency: 2464 Hz
  • Scattering effect at low frequencies up to 554 Hz
  • High quality processed QRD diffuser
  • Develops the scattering effect evenly in all room directions
  • Despite low depth construction, a broadband effect is in the range of 654 to 2256 Hz
  • Suitable for scattering hard reflections in the medium frequency range, thus minimising the colour of the sound by fluttering echoes and strong reflections, without dampening the room
  • Temporal dispersion of the sound, small spaces will thereby appear acoustically “larger”
  • Enhancing the sound characteristics of Hi-Fi listening rooms, home and project studios or recording rooms
  • Exterior frame construction made of clear lacquered 12 mm birch ply
  • Cell walls made of clear lacquered 6 mm Taiga spruce wood
  • Cell size: 80 x 80 mm
  • Panel dimensions: 500 x 500 x 110 mm
  • Weight: 8 kg

Nankarrow QuadraFuse™ QD1 Acoustic Diffuser Applications

Recording and Broadcast Studios, Post Production Studios, Listening Rooms, Conference and Teleconference Rooms, Lecture Halls, Distance Learning Rooms, Public Spaces, Auditoriums, Performance Spaces, etc.


Weight 10 kg
Dimensions 62 × 62 × 10 m
Units in Box



Brown Oak, Natural

Individual Product Size

60 cm X 60 cm X 8 cm


80 mm


Auditorium, Home Theater, Offices & Conference, Recording Studios


1 Year

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4.8 out of 5 stars

5 reviews

Let us know what you think...

What others are saying

  1. Excellent!

    Sanath Joshi

    Excellent! I ordered 3 of these diffusers to cure troublesome ‘hot’ reflections on a side wall. The installation of these Nankarrow diffusers has not only fixed the acoustic problem, it has added a welcome sense of timing and space. Affordable, beautifully made and very easy to install. Highly recommended!

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  2. Outstanding product

    Shahvir K.

    After the product was installed I could immediately notice a better sound quality in my recording studio.

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  3. Exactly what you are looking for!

    Pranay Jhaveri

    I received the Diffuser in approximately 15 days in perfect condition, as soon as it was installed I could notice the difference of sound in my listening room. Reasonably priced and worth being purchased.

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  4. Great Product very effective

    Rajesh Shetty

    Like all Nankarrow products,this item is well made, looks attractive and is reasonably priced.
    I bought several of these diffusers to maintain a good balance of diffusion, as suggested by auralexchange team to compliment the Nankarrow absorbers I also purchased. Collectively, they make a huge improvement to the acoustics in my studio.
    As an added bonus I can hold my car keys in one of the cubby holes..very handy!

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  5. It's just beautiful

    Nandan Kumar

    Deducted one star for late delivery – took almost 15 days because it had to be imported specially. But it’s really an amazing quality and very heavy so you will need strong fixing mechanism to put it on the wall or especially ceiling. Weighs 9-10kg almost. Genuine product.

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Our head-office is in Mumbai; however, we don’t have a showroom or physical stores. We're an online company - we distribute our products online all over India via a distributed warehousing system - we have warehouses in 8 locations. Since our products are technical and used for solving specific acoustic problems, they do not attract walk-in customers. If you want to buy our products, just place your order online or reach out to us via the contact forms.
We do not offer Cash on Delivery. Our products are extremely large and bulky - you can fit a human being into most of our boxes. As a result, one of the highest costs in running this company is the money paid to courier companies like Fedex, XPressBees, etc, which runs into crores of rupees annually. If we allowed COD and the buyer changes their mind and refuses to pay during delivery, we incur double shipping costs (a) for sending the product to the buyer + (b) for shipping the product back to our warehouses. In some cases, this may be more than the value of the product itself. For this reason, we find it impossible to offer Cash on Delivery.
We follow maximum transparency in showing you actual delivery dates at a product level. The exact delivery dates are visible on each product page, cart page, checkout page, as well as your order confirmation emails. Once your order is shipped, regular shipping updates are provided via SMS.
We supply products only. We're an ecommerce company and our focus is on importing, distributing, manufacturing, and supplying a wide range of technical isolation & acoustic products across India. For installation you can engage local contractors / carpenters. Please contact us if you need specific information on installing any product in our catalog.
We accept returns upto 30 days from the date of receipt of product. If you need to return a product, just contact your sales representative and we will arrange a reverse pickup via Fedex. Your refund will be processed within 3 days after we get it back. We charge a 15% fee for restocking the product so this is subtracted from your refund. This is waived off if you have not removed a product from it's original packing and are returning it unused.
Your order could be in several spots... our warehouse, our custom-shop manufacturing units, anticipating dispatch, with the courier on its way, or conveyed. The principal thing to check is have you had your dispatch email? If yes, at that point it's en route. You can track your order by clicking your tracking link from that email. In the event that you haven't got your dispatch email within a week of placing your order, please do contact us.
ONLINE PAYMENTS: Pay us via Netbanking, credit cards, debit cards, wallets, or UPI via our online payment gateway. Over 95% of our customers use this option as it is fast and secure. CHEQUE/DD/DIRECT CASH DEPOSIT: You can deposit a cheque OR Demand Draft OR do a cash deposit into any of our Bank's ATM dropbox/branch near you. The cheque should be in favour of AURAL EXCHANGE and you must mention our account number behind the cheque. You can also mail us At-Par Cheques and Demand Drafts. Please do not mail us cheques unless they are "At Par" cheques. Company Name : Aural Exchange Bank Name : HDFC Bank Account No : 50200021982013 Branch : Sahar Road Branch ( Vile Parle East) IFSC Code : HDFC0000668
Our limited warranty covers any manufacturing defects in materials and workmanship (excluding normal wear and tear) for the products listed below that are purchased in India. We offer 1-5 year warranties depending on the brand. You can view warranty information on the individual product pages. You are solely responsible for all shipping and insurance costs for returning the product to Aural Exchange, and you will not be reimbursed or compensated for any loss or damage incurred during return shipping. Aural Exchange will at its sole discretion repair or replace the product. Should the product no longer be available, we reserve the right to exchange this with a product of similar performance and value. Due to different dye lots, Aural Exchange cannot guarantee exact colour match. This Warranty shall solely extend to the original owner and is limited to manufacturing defects and excludes damage due to improper installation, freight handling, wear and tear, abuse, misuse, misapplication, colour fading or deterioration due to prolonged exposure to ultra violet light, smoke, humidity, water exposure, or other environmental factors. It is understood that the use and suitability of the product is entirely the responsibility of the buyer or specifying engineer and as such, these parties agree to hold Aural Exchange, or its associated company, and/or officers, harmless from any responsibility whatsoever other than what is clearly outlined in this warranty.
This warranty is void if the product is found to have been tampered with or misused by the purchaser, and shall not apply if the product has been physically damaged intentionally or due to accident and/or neglect, including burns, cuts, water damage, fungus, mold, stains, or is otherwise abnormally soiled or unsanitary. Any problems that are caused by abuse, misuse, or weather-related destruction are not covered. Products designed to customer supplied specifications and/or using or including a) customer supplied materials or b) non-standard production techniques or materials are not covered. Also, consequential and incidental damages are not recoverable under this warranty. Additionally, the products listed below are not covered under this warranty: 1. Accessories & Enhancements 2. Installation Materials 3. Product Samples To minimise colour-fading of acoustic foam products due to exposure to oxygen and ultra violate light, carbon is employed during the colouring process. This does not guarantee the colour fastness of the foam component and you should expect the appearance to change over time. Colour fastness is not covered under the Warranty. This warranty does not cover damage to furniture or equipment caused by contact with or destabilization of the foam components or adhesives and hardware used for installation. Care should be taken when placing the product on finished wood surfaces or other surfaces to ensure there will not be a chemical interaction between the surface finish and the foam component.