Pro-Ject Tube Box DS Pre-Amp - Silver

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  • premium phono preamp with tube output for high end audiophile quality sound
  • Moving Magnet & Moving Coil (MM/MC) cartridge support
  • ultra low noise circuitry
  • precise RIAA equalization
  • switchable subsonic filter
  • gold plated RCA sockets
  • metal casing protects against vibration and interference
  • front-sided On/Off switch
  • also available in silver


Pro-Ject's Tube Box DS offers premium audiophile sound thanks to tube output and ultra low noise circuitry. The Tube Box DS can accommodate MM or MC cartridges and comes ready with precise RIAA equalization and switchable subsonic filter. This is an excellent upgrade for those seeking to get the best sound from their vinyl. From Pro-Ject - This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components. For the first time a variable selection of input impedance for MC cartridges can be done while playing a record! Other features include input capacitance for MM cartridges and switchable subsonic, that prevents your amplifier and speakers of ultra low rumble below 20Hz. All components including tube output and polypropylene capacitors are audiophile-grade and guarantee a breathtaking sound experience.


  • ECC 83 tube output stage (2x ECC83)
  • input: impedance for low output MC VARIABLE 10 ohms - 1000 ohms
  • capacitance (MM): 47pF / 147pF / 267pF / 367pF
  • gain MM / MC: 40 / 50 / 60 dB
  • signal-to-noise ratio: 93dBA
  • THD: < 0.1%
  • RIAA curve accuracy within 0,5dB/20Hz - 20kHz
  • subsonic filter: 20Hz @ 18dB/octave
  • Input / Output: RCA
  • power supply: 18V/1000mA DC; 220 - 240V, 50Hz
  • power consumption: max 490mA DC / < 1 watt standby
  • dimension W x H x D (D with sockets): 103 x 72 x 144 (156)mm
  • weight: 2.2lbs / 1100g without power supply