Pro-Ject Tube Box E Dual-Mono Valve Phono Preamplifier – Black

£249.00

We are an authorised Pro-Ject dealership so you can be assured of a genuine product backed by full manufacturer warranty.

The Pro-Ject Tube Box E brings classic tube warmth to your vinyl setup in a sleek, compact design. Despite its miniature size, this phono stage delivers a full, relaxed sound with lush midrange detail—just like you’d expect from a much larger high-end tube amplifier. Whether you’re running a moving magnet (MM) or moving coil (MC) cartridge, the Tube Box E has you covered. Gain settings are easily adjusted from the front panel, and the loading options on the underside let you precisely tailor the sound to your cartridge. This ensures optimal synergy with your turntable setup. The Tube Box E features a fully discrete circuit design with no operational amplifiers (OpAmps), delivering clean signal paths, ultra-low noise performance, and accurate RIAA equalisation. The result is a rich, natural sound and a product built for long-term enjoyment and serviceability.

In stock ready for immediate dispatch with full UK VAT receipt.

Description

We are an authorised Pro-Ject dealership so you can be assured of a genuine product backed by full manufacturer warranty.

Big Sound, Compact Size

The Pro-Ject Tube Box E brings classic tube warmth to your vinyl setup in a sleek, compact design. Despite its miniature size, this phono stage delivers a full, relaxed sound with lush midrange detail—just like you’d expect from a much larger high-end tube amplifier.

Versatile Performance for MM & MC Cartridges

Whether you’re running a moving magnet (MM) or moving coil (MC) cartridge, the Tube Box E has you covered. Gain settings are easily adjusted from the front panel, and the loading options on the underside let you precisely tailor the sound to your cartridge. This ensures optimal synergy with your turntable setup.

No OpAmps – Just Pure Analogue Sound

The Tube Box E features a fully discrete circuit design with no operational amplifiers (OpAmps), delivering clean signal paths, ultra-low noise performance, and accurate RIAA equalisation. The result is a rich, natural sound and a product built for long-term enjoyment and serviceability.

Customisable Tube Output

Fitted with two ECC83 tubes, the Tube Box E offers replaceable valves for tube rolling and sound-shaping. You can fine-tune the sonic character to match your preferences, giving you a hands-on way to personalise your listening experience.

Engineered for Audiophile Listening

Built with FET input stages, polystyrene capacitors, and gold-plated RCA connectors, all housed in a metal chassis with a sleek aluminium front. Multiple internal power supplies ensure clean, stable performance.

Features:

  • MM & MC Cartridge Compatible – Works with both moving magnet and moving coil cartridges, offering flexibility for a wide range of turntables.
  • Fully Discrete Design – No OpAmps used, resulting in ultra-clean signal paths, accurate RIAA equalisation, and low noise performance.
  • ECC83 Tubes – Two high-quality tubes included, with the option to roll and customise your sound signature.
  • Dual Mono Circuitry – Separate circuitry for each channel ensures optimal stereo separation and imaging.
  • Front Panel Controls – Easy-access gain switch and subsonic filter button make adjustments simple and intuitive.
  • Premium Componentry – Features FET input stage, polystyrene capacitors, and gold-plated RCA inputs/outputs for optimal audio quality.
  • Custom Loading Options – Tailor the preamp’s electrical load to match your cartridge’s specific requirements.

Specifications:

  • Tube Assembly – 2x ECC83 (12AX7A)
  • Input Impedance – 10, 100, 1k, 2k ohms A
  • Capacitance – 47, 147, 267, 367, 487, 587 pF / 47k ohms
  • Gain – 40, 43 B / 50, 53 / 60, 63 dB A
  • Noise Floor (77 dB) – (A weighted) at 40 dB input gain
  • Noise Floor (65 dB) – 65 dB (A weighted) at 50 dB and 63 dB input gain
  • THD – <0.03% at 40 dB input gain / <0,07% at 50 dB and 63 dB input gain
  • RIAA Curve Accuracy+/- 0,5dB / 20Hz – 20kHz
  • Subsonic Filter20Hz @ 18 dB/octave
  • Input / Output1x RCA / 1x RCA
  • Outboard Power Supply18V / 1A DC
  • Power Consumption470 mA DC, < 1W in standby

Dimensions (W x H x D) 103 x 73 x 115 (131) mm (with sockets)

Weight450g without power supply

In stock ready for immediate dispatch with full UK VAT receipt.

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