Pro-Ject Tube Box DS


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. 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. A perfect upgrade for ambitious vinyl lovers!


• MM & MC support  
• Precise RIAA equalisation
• Ultra low noise circuitry
• ECC 83 tube output stage
• Input impedance adjustment for low output MC on front
• Input capacitance adjustment in 4 steps (MM & Hi-output MC)
• Switchable subsonic filter
• Gold plated RCA sockets
• Metal casing protects against vibration and interference
• Front-sided On/Off switch
• Faceplate silver or black

Tube assembly: 2x ECC83 (12AX7)
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: 1100g without power supply





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