Short summary

A valve phono stage with a fully discrete circuit and no op-amps. An ultra-low-noise FET input and well-filtered power supply support both MM and MC cartridges, in a dual-mono design for strong channel separation.

Key info

  • Phono stage for MM and MC cartridges
  • Fully discrete circuit design w/o op-amps
  • Ultra low-noise circuitry
  • FET input stage
  • Well-filtered high-voltage anode power supply
  • Dual-mono electrical design

Specifications

Physical characteristics
Weight 4.5 kg
Dimensions (HxWxD) 103 x 73 x 115 mm
Technical specifications
THD <0,03 % (MM), <0,07 % (MC)
Input impedance 47 kΩ (MM), Variable 10 - 2,000Ω (MC)
Maximum power consumption <1 W
Tubes <0,07 %
Gain MM 40, 43, 50, 53 dB
Gain MC 50, 53, 60, 63 dB
Capacitance 47, 147, 267, 367, 487 or 587 pF
Noise 77 dBA (MM), 65 dBA (MC)
Power Supply 18V-1A DC
Inputs/Outputs
Analog inputs 1 x RCA
Analog outputs 1 x RCA

Description

Elegant Design Meets Practical Engineering

The Tube Box E brings classic tube warmth to your turntable setup in a sleek, miniature form. Its all-metal enclosure shields against unwanted interference, while the finely machined aluminium front panel adds a touch of sophistication. Available in silver or black, it blends seamlessly into any hi-fi system.

Pure Analogue Performance, Made Simple

Inside, a fully discrete circuit design avoids operational amplifiers (OpAmps), resulting in ultra-low noise and accurate RIAA equalisation. This means your records sound clearer and more natural, with lush mids and a relaxed tonal character. Dual mono circuitry enhances channel separation, delivering a more immersive stereo image.

Flexible Features for Vinyl Enthusiasts

Supporting both MM and MC cartridges, the Tube Box E offers front panel gain control and a subsonic filter to reduce rumble. Loading options are easily adjustable underneath, allowing precise matching to your cartridge. Replaceable ECC83 tubes invite sound-shaping through tube rolling, giving you control over your audio signature.

Downloads

User reviews

There are no reviews yet.

Leave a review


Pro-Ject is one of the best-known names in modern vinyl playback, with a range built around turntables, phono stages, hi-fi electronics, cartridges, accessories and compact stereo solutions. Founded in 1991 in Austria,…