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Pro-ject Tube Box DS2 Preamplifier-Silver-Tube Box DS2-Silver

Model #: Tube Box DS2-Silver
At a Glance

Pro-ject Tube Box DS2 Preamplifier-Silver with tube output and high-end sound

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Premium phono preamplifier with tube output and highend sound!

This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components. Compatible with both MM and MC cartridges. It offers connection for two turntables plus two selectable line outputs and a continuously variable selection of input impedance for low output MC cartridges 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. A perfect upgrade for ambitious vinyl lovers!  

  • Suitable for MM and MC cartridges  
  • Precise RIAA equalization  
  • Ultra low noise circuitry  
  • Selection between 2 phono inputs & 2 line outputs  
  • Dual mono circuitry for optimized channel separation  
  • Selectable input impedance (for MC: fix or variable)  
  • Selectable input capacitance (for MM)  
  • Selectable subsonic filter  
  • Gold-plated RCA in & outputs  
  • Sandwich alu/metal casing protects from vibrations and electromagnetic interference  

Technical Specifications

  • Tube Assembly: 2x ECC83 (12AX7)
  • Input Impedance: Variable 10-1000 Ohms, fix 47 k
  • Ohms Capacitance: 100 / 220 / 320 pFGain MM / MC 40 / 45 / 50 / 60 / 65 dB
  • Output Voltage: Typically 500 mV/1kHz at 5mV/1kHz (at 40dB)
  • Signal-to-Noise Ratio: 88dBA
  • THD: < .04%
  • RIAA Curve Accuracy: +/- .2dB/20Hz - 20kHz
  • Subsonic Filter: 20Hz @ 12dB/octave
  • Input / Output: 2x RCA
  • Power Supply: 18V/1000mA 
  • DC Power Consumption: max 490mA DC / < .5 watt standby
  • Dimensions WxHxD:8.11 x 3.58 x 8.94 in (Black/Silver)
  • Weight (without power supply): 3.64 lb (Black/Silver)
Useful Documents


Analog Audio(RCA) Output:2


Signal to Noise Ratio:88 dBA



Misc. Specs

Product Weight3.3100
Depth (in.)8.94
Width (in.)8.11
Height (in.)3.58
Analog Audio(RCA) Input2
WarningProposition 65 Warning for California Residents