Pro-Ject Phono Box RS Phono Preamplifier

Reference class phono preamplifier with unique impedance control

This ultra low noise and distortion preamplifier is made for the audio conniosseur and offers not only breathtaking performance but is capable to adapt to virtually any phono cartridge through variable impedance control. Impedance adjustment can be done while playback! Due to use of best parts, like SSM2019 from Analog Devices as input stages and Linear Technology LT1010 as high current buffer stage, Phono Box RS delivers ultra low levels of distortion and noise. Its very low output impedance makes it insensitive to selection of interconnect cables and lenghts.

Fully passive RIAA and DECCA equalisation is selectable. Phono Box RS offers fully balanced circuitry and both XLR and RCA inputs and outputs. All in all vinyl playback will never have sounded as clear, detailed and smooth, than with this superlative phono stage!

Features

MM & MC capable

True dual mono design

Balanced XLR & unbalanced RCA In & Outputs

Fully passive RIAA & DECCA equalisation

Unique continously variable input impedance loading, matches every cartridge (adjustment even while playing)

RCA & XLR In & Out

Superior low noise / low distortion

Classy & elegant dip switches

DC power supply (< 1 watt standby power)

Metal casing protects against vibration and interference

Available in silver or black

Specifications

Input impedance Fixed 10 Ohms or 47kOhms,

Variable 10 – 1200 Ohms

Load capacity switchable 100pF, 200pF, 300pF, 420pF, 520pF

Output impedance 50 Ohms

Gain, MM / MC RCA: 40, 50, 60 dB

XLR: 46, 56, 66 dB

Signal to noise ratio 91 dBA

THD 0.019%

RIAA accuracy within 0.3dB/20Hz – 20kHz

SubsonIc 20Hz / – 12 dB

Inputs RCA & XLR

Outputs RCA & XLR

Power supply 2 x 18V/300mA DC; 220 – 240V, 50Hz

Power consumption 150mA DC < 1 watt standby

Dimensions W x H x D (with sockets) 206 x 72 x 210 mm

Weight 2000 g without power supply