AVI Systems

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Pro-ject Tube Box DS2 Black Preamplifier

At a Glance

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

Proposition 65 Warning for California Residents

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)

THD: < .04%

Signal-to-Noise Ratio: 88dBA

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)