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2: 

Overview

Originally launched in 2016, the Radius 2 two-channel rotary DJ mixer 

became an instant hit with the high-end DJ and club installation 

community, followed by the introduction of the Radius 4 four-channel 

version, two valve-based versions (Radius Two and Four Valve), an FX 

unit and dedicated LinearPOWER supply accessory.

“Four years on, the brand has seen remarkable growth, but the higher 

production costs of a premium rotary mixer rules them out for DJs on a 

tighter budget. “Designer, Andy Rigby-Jones, and I decided to do something 

about it, and the challenge was to redesign the compact Radius 2 and 

Radius 4 to make them more affordable but without compromising any of the 

features, the feel, or the audio fidelity of the original model,” 

explains MasterSounds’ founder, Ryan Shaw.

The new generation Radius 2 and 4 offers clean, open, and dynamic sonic 

quality on both LINE and RIAA inputs, as well as improved usability. 

Both mixers feature easy-reading analogue VU meters, a responsive Master 

EQ/Isolator, a smooth natural sounding hi-pass filter on each channel, 

and an AUX send/Return system with insert button for easy integration 

of external effects, including MasterSounds own FX unit. Radius 4 also 

includes 2 mic inputs, selectable via the rear panel.

“The redesign challenge meant going back to the drawing board to see 

where we could simplify the circuitry without impairing performance. For 

instance, the Split Composite Passive RIAA stage remains identical to the 

previous generation but we have simplified the post-fader circuitry. The 

biggest change was to the internal construction and PCB board shapes, 

where we have optimised them for maximum efficiency through our in-house 

fabrication plant which has made them a lot easier to manufacture.  What 

we haven’t compromised on is the quality of the components used, and the 

third-generation mixers all feature Alps pots/switches, close tolerance 

resistors/capacitors, and Panasonic electrolytics. I am very happy with 

the result of the engineering changes, and these compact mixers offer 

exceptional value for money,” 

explains Union Audio’s Andy Rigby-Jones.

Union Audio has evolved and experienced some radical changes since 

Radius 2’s inception four years ago, which has equipped the team to 

implement the design changed. Moving into a new unit in 2017, Rigby-

Jones has developed a sophisticated design and production facility, 

coupling traditional analogue engineering with ultra-high specification 

manufacturing.

“The Radius 2 and 4 hold a special place in my heart, it’s the mixer Andy 

and I began our audio journey with, and one that gives the user a really 

unique way of blending records. Both Radius 2 and 4 are desktop products, 

with a small footprint, which makes them perfect for home, touring, and 

club use, or all three! It was the right time to re-engineer Radius, 

giving more DJs the opportunity to experience our wonderful product, at a 

price unseen given each mixer’s quality of build and fidelity of sound,” 

concludes Shaw.

Radius 2

Operation Manual 

Overview

4

Содержание UNION AUDIO Radius 2

Страница 1: ...Radius 2 Operation Manual...

Страница 2: ...Index 1 Safety instructions pg3 2 Overview pg4 3 Front panel controls pg5 4 Rear panel controls pg7 5 Warranty pg9 6 Technical specification pg9 Radius 2 Operation Manual Index 2...

Страница 3: ...of power amplifiers directly to the console Use audio connectors and plugs only for their intended purpose VENTILATION nsure adequate ventilation around the console and its power unit Do not obstruct...

Страница 4: ...he Split Composite Passive RIAA stage remains identical to the previous generation but we have simplified the post fader circuitry The biggest change was to the internal construction and PCB board sha...

Страница 5: ...maximum of 10dBu enabling accurate level matching between different musical sources LINE RIAA This toggle switch selects either the RIAA Phono level Input in its top position or the LINE Input in the...

Страница 6: ...the signal level sent to the Main Output XLRs House Mix ranging from off to 10dBu of gain Set the control to approximately 1 o clock for unity BOOTH The BOOTH rotary pot adjusts the signal level sent...

Страница 7: ...SEND RETURN SYSTEM GROUND POST Unscrew the knurled nut and attach the turntable s ground lead s and screw back into place without over tightening the nut RECORD OUT Twin RCA sockets enables the user t...

Страница 8: ...er so turning down the fader also turns down the level of FX but if the Aux Send PRE button is pressed the Aux send takes its signal before the Channel Fader so even if the fader is off you can still...

Страница 9: ...y products must be returned to MasterSounds or an authorised service agent along with the original invoice or proof of purchase and the mixer must be returned packed in the original shipping box Pleas...

Страница 10: ...se Headphone Output Power EQ Filters Channel High Pass Filter Range Master EQ Isolator Cut Boost Master EQ Isolator Crossover RIAA Accuracy Dimensions Weight Packed Dimensions Packed weight Dimensions...

Страница 11: ......

Страница 12: ...Radius 2 Operation Manual Copyright 2020 MasterSounds Audio All rights reserved www mastersounds co uk...

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