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PRO-JECT Tube Box E Phono Pre Amp

Project Tube Box E Phono Pre Amp-

Innovative miniature sized phono preamplifier with tube output and high end sound!

$539.00 Regular Price $599.00
Brand

Warranty Period : 2 years

Please Note: Phono Pre-Amp's require RCA cables to connect to your amplifier. We have a wide selection of cables and interconnects available HERE.

Tube Box E finally enriches our E-line with our highly popular tube phono preamplifiers.

It features a fully discrete circuit design without using any operational amplifiers (OpAmps). This results not only in fantastic low noise phono amplification with clean measurements and accurate RIAA equalisation, but also ensures a long product life-cycle as maintenance, service and repair are ensured for years and years to come. It also comes with replaceable tubes for tube rolling and sound-shaping. This gives the customer many options to pick from and alter the sound signature to his preference. Tube Box E will give a full and relaxed laid back sound with lush mids, just like you would expect it from a much bigger high-end tube phono preamplifier.

It offers support for both MM and MC cartridges and comes with many gain settings to be switched on the front panel. Wide ranging loading options can be adjusted on the bottom of the unit allowing you to precision match your Tube Box E to your cartridge!

The enclosure is fully made out of metal to protect it effectively against electromagnetic interference and vibrations, which can cause unpleasant listening experiences. The front panel and control elements are made out of beautifully machined aluminium.

 

Features
  • Suitable for MM and MC cartridges
  • Precise RIAA equalisation in two parts, passive/active
  • Fully discreet circuit design without OpAmps
  • 2x ECC83 tubes (replaceable)
  • Front-sided Subsonic filter button
  • Front-sided Gain control
  • Ultra low noise circuitry with FET input stage
  • Dual mono circuitry for optimized channel separation
  • Polystyrene capacitors used where possible
  • Gold-plated RCA in- and outputs
  • External power adaptor and multiple internal power supplies
  • Well-filtrated high-voltage anode power supply
  • Sandwich alu/metal casing protects from vibrations and electromagnetic interference
  • Available in silver or black
Specification

Tubes

  • 2 x ECC83 (12AX 7A)

Input impedance

  • 10 ohms
  • 100 ohms
  • 1 kohm
  • 2 kohms

Input capacitance/impedance

  • 47pF
  • 147pF
  • 267pF
  • 367pF
  • 487pF
  • 587pF / 47 kohms, Together with other input impedance settings without any influence!

Input gain

  • 40 dB
  • 43 dB
  • 50 dB
  • 60 dB
  • 63 dB

Noise floor

  • 77 dB (A weighted) at 40 dB input gain
  • 65dB (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-equalisation curve accuracy

  • +/- 0.5 dB/20 Hz - 20 kHz

Subsonic filter

  • at 20 Hz with 18 dB/octave

Input

  • 1 Pair RCA/Phono sockets

Line-level output

  • 1 pair RCA/Phono sockets

Outboard power supply

  • 18VDC
  • 1A

Power consumption

  • 470 mA DC
  • <1W in standby

Dimensions W x H x D with sockets

  • 103 x 73 x 131 mm

Weight

  • 410 g without power supply