Radius TWO VALVE - MasterSounds Premium, boutique, rotary, valve, tube, analogue, affordable DJ Mixer


Radius TWO VALVE Black

Regular price £1,595.00 Sale

**We are proud to have a limited number of units in stock for next day dispatch if ordered before 2 pm GMT** 

We hand build all our DJ mixers, FX units & LinearPOWER accessories to order, via analogue legend Andy Rigby-Jones & his small team of ultra passionate audio professionals in rural Cornwall with skill, care & attention to detail.


Product Description

Building on the success of its flagship Radius 4V DJ mixer,  MasterSounds, has added the compact Radius TWO VALVE to its range. The new 2 channel DJ mixer is manufactured using the highest quality components and comprises a similar feature set as its award-winning 4 channel sibling, in a smaller footprint.

At the heart of TWO VALVE and its unique sound quality are two dual-triode valves, which form part of the input buffer stage to the VCAs.

“The valves’ high input impedance minimises loading on the preceding stages but provides low output impedance to drive the VCAs, whilst natural compression smooths and warms harsh transients. Careful circuit design around the valves minimises noise and distortion,” explains leading DJ mixer designer, Andy Rigby-Jones, from MasterSounds’ technology partner, Union Audio.

TWO VALVE comprises 2 fully-featured channel strips with Aux Send (switchable pre or post-fader), input level trim, illuminated input select switch, a super smooth 3-band asymmetric EQ, large illuminated Cue switch and high-quality ALPS rotary faders.

To the right of the channel strip features a 3-band Master EQ/Isolator, Master and Booth level controls, and headphone monitor with split and Cue/add mix control. Below the master section is a high-quality Penny & Giles crossfader, with contour control to adjust the curve from smooth mix to fast cut.

Two 36mm illuminated analogue VU meters provide accurate signal level monitoring of the mix buss, which automatically switch to monitoring the Cue level when a channel Cue is activated. If the signal level is excessive, the VU meter illumination will change from warm white to bright red.

A new split composite/passive RIAA stage featuring Vishay 2% Polypropylene capacitors, close tolerance thin film resistors, and JFET pre-amplifiers provide outstanding fidelity from the turntable inputs.  All circuit coupling is through bypassed Panasonic electrolytics to preserve this fidelity throughout the entire signal chain. The icing on the cake is a pair of MUSES operational amplifiers providing world-class summing for the fully balanced main mix buss.

“TWO VALVE has been designed for clubs and DJs requiring a conventional DJ toolkit with ‘no compromise’ audio fidelity. It is the ideal companion for DJ purists who only require 2 audio channels in a premium package. The open, dynamic and transparent sound stage, portable size for carrying between venues, and intuitive feature set gives users an optimal DJ experience, be it at home or in the club,” concludes MasterSounds founder, Ryan Shaw.

Finally, MasterSounds mixers are hand-built at Union Audio in Cornwall, UK, ensuring the finest build quality.

*Please note - orders outside the EU do not have VAT applied, but will be subject to local import taxes on delivery*

Shipping & Payment




Please Note - None UK customers may have to pay import duty on receiving goods, MasterSounds specifies the full purchase amount on all shipping and customs documents.

PayPal Express Checkout

We now offer the facility for customers to pay for their orders with PayPal Express Checkout. This allows you to take advantage of the various credit options supplied directly by PayPal to you as the customer. MasterSounds is not the proprietor of any credit agreements.

Warranty & Returns


All of MasterSounds DJ mixers and FX Units come with a limited 2-year international warranty. The warranty applies only to the original purchaser and is not transferrable. Please see section 5 of the product manual (digital copy below)

Return & Exchange Policy

If you are not completely satisfied with your MasterSounds purchase please contact us within 14 days of receiving your item to discuss a refund or exchange. Refunded and exchanged items must be unused and in all original packaging. No returns or exchanges are permitted on custom orders. The buyer is responsible for all return shipping costs.


Do you have any mixers or FX units in stock? 

All of DJ mixers and FX units are hand-built to order. Each product will have an estimated build time above the tab menu. 

Our exclusive retail outlet is Phonica Records in London, who keep a limited stock of our DJ mixers, FX unit, TRBxM and turntable weights. Please check the Phonica website for more details or give them a call.

Can MasterSounds mixers or FX Unit be used where I live?

Each of our mixers & FX Units is supplied with a compact external switch mode power supply, enabling use anywhere in the world with the correct IEC lead, which we supply for your country of residence. Touring DJs can use our mixers anywhere in the world, simply by changing the IEC lead relevant to the country the unit is shipped to. The FX Unit comes with a portable power supply with several types of plug configuration, enabling use anywhere in the world.

Do you ship to my location?

We ship items to locations across the world on a daily basis via signed courier service, so the likelihood is that we will be able to ship directly to you.

We send all of our audio accessories via Royal Mail tracked & signed.

Our DJ mixers & FX units are all sent via UPS courier service.

VAT, do I have to pay for it?

VAT is automatically applied to any purchase made within and shipped to the UK. Orders made outside the UK do not have VAT applied, but will be subject to local import taxes on delivery. If you are unsure how much import tax will be payable, please contact your local customs office who will be able to advise.

Technical Specification

Power Requirement

(Each mixer is supplied with a compact switch-mode power supply for anywhere in the world and we supply the correct IEC lead for your country)

External Power Supply - Universal 90V – 265V AC 50/60Hz

18V 18W Max

DC Internal Power Rails - +/- 18V DC

Audio Performance 

Residual Output Noise - <-97dBu 20Hz to 20kHz unweighted

Mix noise Unity Line In to Mix Out - <-90dBu 20Hz to 20kHz unweighted

Distortion THD+N - <0.008% Line IN to Mix OUT 0dBu

Dynamic Range - >116dB

Maximum Signal Level - ±27dBu

Frequency Response - 10Hz – 50kHz +0/-1dB

10Hz – 80kHz +0/-3dB

Headphone Output Power - 800mW RMS into 32 Ohms


Channel EQ - 3 Band -20/+6dB

Channel EQ Frequency - 100Hz, 1kHz, 5kHz

Master EQ/Isolator Cut/Boost - OFF to +12dB

Master EQ/Isolator Crossover Fc - 350Hz and 3.5kHz

RIAA Accuracy - Within 0.25dB 40Hz – 20kHz.


W = 230 L = 283 H = 84 (mm)

**PLEASE NOTE** This is the Faceplate size. Not including knobs, Sockets, Headphone Jack, Cabling ETC...

Weight = 3.3KG

Packed Dimensions 

W = 351 L = 351 H = 180 (mm)

Packed weight = 5.5KG


MasterSounds reserves the right to change the specification without notice.