TUBE BOX MK2

MM / MC Phono Pre-amplifier

Tube Box II for MM and MC is a very high quality phono cartridge preamplifier.

This unit produces a lively and powerful performance with convincing sound staging

and emotional presentation.

Good sound from sound technology

• Metal case shields the electronics from vibrational and electromagnetic interference

• Dual-Mono circuitry utilising two double triodes for improved channel separation

• Subsonic filter selection switch located at the rear of the unit

• Gold plated RCA connection sockets

• Outboard power supply included

Features

• Amplification and RIAA equalisation for MM and MC cartridges

• Phono MM/MC selection switch located at the rear of the unit

Technical data

Pro-Ject Tube Box II

Tubes 2 x ECC83 (12AX 7A)

Input impedance, MM 47kohms/120pF

Input impedances, MC 100ohms/120pF

Gain, MM 40dB

Output voltage typically 300mV/1kHz 3mV/1kHz (MM input)

Gain, MC 60dB

Output voltage typically 300mV/1kHz 0,3mV/1kHz (MC input)

Noise floor, MM 84dB (94dB – A weighted)

Noise floor, MC 67dB (75dB – A weighted)

THD, MM 0,05%

THD, MC 0,08%

RIAA-equalisation curve accuracy 20Hz – 20kHz / max. 0,5dB

Subsonic filter at 18Hz with 18dB/octave

Outboard power supply 16V/1.000mA AC, suitable for your country’s mains supply

Power consumption 16V/410mA AC

Dimension W x H x D 103 x 76 x 141mm

Weight 810g without power supply