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Pro-Ject Phono Box RS Reference Phono Preamp

1 Review

Pro-Ject's Reference Phonostage

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 lengths.

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!
  • MM & MC capable
  • Fully balanced double mono design
  • 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
  • Metal casing protects against vibration and interference
  • Faceplate silver or black
  • Technical:
  • Input impedance: Fixed 10 ohms or 47kohms, variable 10 - 1200 ohms
  • Load capacity switchable: 100µF, 120µF, 200µF
  • Output impedance: 50 ohms
  • Gain, MM / MC: RCA: 40, 43, 60 dB, XLR: 45, 56, 66 dB
  • Signal to noise ratio: MM 89dB (97dB - IEC -A), MC 83dB (91dB - IEC -A)
  • THD, MM / MC: 0,01% / 0,05%
  • RIAA accuracy: within 0,3dB/20Hz - 20kHz
  • Subsonic: 18Hz / 24dB/Oktave
  • Input: RCA & XLR
  • Output: RCA & XLR
  • Power supply: +/- 18V/300mA DC; 220 - 240V, 50Hz
  • Dimensions W x H x D (with sockets): 200 x 72 x 194 (200)mm
  • Weight: 2000g without power supply
  • Ratings & Reviews

    1 review

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    RS beats most competition in the price range


    I had a Jolida JD9 for over 5 years. Loved it, but was ready for something better. I auditioned numerous options in the $700 to $1300 range, and this was the winner. It has tremendous bass that is tight and well controlled. Highs are extended, clear and life-like. The balance is great overall.

    The adjustability on this device can't be beat. You can use this to match with literally any cartridge. It will work, and you'll have options to meet your needs. The dial on the front to set capacitance is the best feature. It makes the unit very flexible and easy to use. Love it!

    It's a big step up from the Project Tube Box DS2. RS is quieter, smoother, and has tighter control on the bass. Biggest difference is the RS has a very quiet background and the music just seems to flow out of silence.