Roksan Audio’s Radius turntable (review) has been updated and released as the Radius 7.
Roksan Audio are acknowledged around the world as pioneers of analogue technology, with over thirty years of experience and success in the market, starting with their iconic Xerxes record player (see the review of the latest Xerxes incarnation).
The Radius 7’s Perspex construction boasts the same innovative, decoupled dual-layer plinth design but in a new precision-machined ‘glass-effect’ finish. The same striking shape of the plinth layers remains, but as with previous Radius designs this is not only to help the look, but also to control resonance and reduce effective mass.
The decoupled drive motor employed in the Radius 7 is a completely new design, engineered from scratch using trickle-down technology from Roksan Audio’s flagship speed control for the Xerxes record player, the RPM. It’s an exceptionally precise device, featuring a very high accuracy, temperature-compensated crystal speed control system, which maintains pitch-perfect speed stability for both 33 and 45rpm, irrespective of voltage variations. The added benefit to this new system is manifest in the new aluminium alloy pulley, which utilises a single rung; as the Radius 7 is capable of automatic speed changing. To add further visual appeal, a bright yet un-intrusive LED is built-in underneath the motor assembly and illuminates either blue (33rpm) or red (45rpm) to show the current platter speed.
The Radius 7 has the same acrylic platter as the Radius 5.2. The platter rotates on a precision- machined hardened steel bearing ball that sits within a brass housing that contains Roksan’s LX-7 bearing oil, with ultra-low friction properties for reduced resonance.
In the UK, the Radius 7 is supplied as standard with the Roksan Nima tonearm. The Nima is a low-friction, uni-pivot design. The Nima is carefully assembled by hand and boasts the same internal wiring as Roksan’s previous flagship tonearm, the Artemiz.
The Radius 7 will be available in the UK from March 2016.
Main Bearing Spindle:Precision-machined stainless steel
Main Bearing Housing:Precision-machined solid brass
Main Bearing Ball:Precision case hardened steel
Pulley:Precision-machined aluminium alloy
Motor:Custom-made 24 pole synchronous
Speeds:33.3 & 45 rpm
Power: 90-240V / 50-60 Hz
Rumble: < -75dB
Wow & Flutter: < 0.04%
Dimension (W x D x H):400 x 350 x 150mm
Bearing:Stainless Steel Unipivot
Bearing Yoke: Acrylic
Arm Tube:Aluminium Alloy
Headshell Offset Angle: 22.9°
Effective Mass: 10g
Mounting Hole Diameter: 23mm
Recommended Cartridge Weight: 5 – 12g
Recommended Tracking Weight: 1.5 – 3.5g