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PROJECT PROJECT PHONO BOX RS

PROJECT PHONO BOX RS

Pre phono with external power supply

€ 470,00
Immediate availability

Code: 27165279

All our products are covered by Italian warranty.

2nd Hand
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Second-hand, in mint condition, without scratches. Without original package.

Pre phono
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!

Power Box RS Phono: Reach the ultimate level in phono sound!
We at Pro-Ject Audio Systems strongly believe that a power supply is a very important part of the audio path and significantly contributes to the sonic quality of an audio product. In order to offer a maximum in sound quality and optimum isolation of the phono preamplifier from mains interferences, we designed the Power Box RS Phono with battery power output. Pure and clean energy is very important everywhere where low level signals are amplified. A turntable cartridge deliveres the lowest signal level from all the known sources of audio signal. Typical level of a low output MC cartridge is about 0.2mV = 0.0002V. Such low level signal is very vulnerable against all kinds of interferences and noise.

How does it work?
When Power Box RS Phono is connected to Phono Box RS and switched ON, only the accus are connected (adapter and charger are physically disconnected) so Phono Box RS is completely isolated from mains interferences. When accu voltage decreases and reaches certain limits, further playback will be a danger for status of the battery, the charger is automatically connected. This status is indicated by LED on the front panel. Everything continues without any limitation and playback is possible, but the advantage of completely isolating for the charging period is lost. Even if the biggest advantage is temporarily not available, the battery now works as very big filtration bank and the sound is still far better than in case of using the standard power adapter. When accu is fully charged, the charger is disconnected and again Power Box RS Phono powers Phono Box RS only from accu packs.

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


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

 

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