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Pro-ject Tube Box DS2 Silver Preamplifier with Eucalyptus Wooden Side Panels

Model #: Tube Box DS2-SV-EC
At a Glance

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!

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$99,999.00Save $NaN

Get to know this product.

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
  • Finishes: silver or black, with/without wooden side panels (rosewood, walnut, eucalyptus)
Useful Documents

Technical Specifications

Tubes2 x ECC83 (12AX7)
Input ImpedanceVariable 10-1000 Ohm, fix 47 kOhm
Capacitance100 / 220 / 320 pF
Gain MM/MC40 / 45 / 50 / 60 / 65 dB
Output Voltage Typically500 mV/1kHz at 5mV/1kHz (at 40dB)
THD< 0.04%
RIAA Curve Accuracy+/- 0.2dB/20Hz - 20kHz
Subsonic Filter20Hz @ 12dB/octave
Inputs2 x Phono (RCA)
Outputs2 x Line (RCA)
Power Supply18V/1000mA DC
Power Consumption Max490mA DC / < 0.5 Watt Standby
Dimensions B x H x T206 x 91 x 227 mm (Alu); 240 x 93 x 227 mm (Wood)
Weight (Without Power Supply)1500 g (Alu); 1960 g (Wood)

Misc. Specs

Product Weight (lbs.)4.32
Depth (in.)8.94
Width (in.)9.45
Height (in.)3.66
Analog Audio(RCA) Input2
WarningProposition 65 Warning for California Residents