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 optimised channel separation Polystyrene capacitors used where possible Gold-plated RCA in- and outputs Multiple internal power supplies Well-filtrated high-voltage anode power supply Available in silver or black Innovative miniature sized phono preamplifier with tube output! Tube Box E finally enriches our E-line with Pro-Ject’s 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 maintanance, 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. Precise Loading for MM & MC 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. Specifications Tubes: 2 x ECC83 (12AX 7A) Input Impedance: 10 ohms, 100 ohms, 1 kohm, 2 kohms Input capacitance/impedance: 47pF, 147pF, 267pF, 367 pF, 487 pF and 587 pF* / 47 kohms Input Gain: 40 dB, 43 dB / 50 dB, 60 dB und 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:
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