Фонокорректоры — European Audio Team (EAT) E-Glo SB

The E-Glo SB is a balanced, fully discrete valve phono preamp that EAT hand-builds in Europe and houses in a small single chassis. Compared with the E-Glo CB it uses a stricter selection of film capacitors and a second amplification stage built entirely around valves, while keeping a fully balanced gain stage design and sharing many of the CB's high-end parts. Silver and black are the two case colours, and the front panel carries rows of switches for gain, loading and the subsonic filter, so no setting requires removing the cover.

Key specs that matter

Four valves are fitted - two ECC83S and two E88CC. Gain choices are 40, 45, 50, 55, 65 and 70 dB. For moving magnet cartridges the input impedance steps through 30k, 36k, 42k, 47k, 53k, 59k, 65k and 75k ohm, and capacitive loading offers 50, 150, 270, 370, 520 and 620 pF. Moving coil settings are 10, 18, 43, 75, 150, 300, 600 and 1200 ohm. Quoted signal to noise exceeds 90 dBV for moving magnet (100 dBV IEC A) and 80 dBV for moving coil (90 dBV IEC A). Distortion stays below 0.004 percent at 1 V RMS for gains from 40 to 55 dB and at 0.04 percent for 65 to 70 dB, with RIAA accuracy inside 0.5 dB across 20 Hz to 20 kHz. The chassis is 395 x 86 x 262 mm, and it weighs 5.1 kg without the supply.

Engineering and use context

MM and MC pickups alike can be wired to the balanced XLR input, and a balanced XLR output sits beside the RCA pair. The discrete circuit avoids IC op amps, runs as a dual mono layout and splits RIAA equalisation into passive and active parts. EAT specifies semi-crystalline hydrocarbon polypropylene film capacitors in the gain and RIAA stages, chosen for a very low loss factor and for frequency and temperature stability. A subsonic filter at 20 Hz rolls off at 18 dB per octave. An external 18 V, 1000 mA supply handles mains from 110 to 250 V at 50 or 60 Hz, maximum consumption is 24 W and standby draw is under 0.5 W. The valves carry dimmable backlighting in changeable colours, and optional magnetic side panels are available as piano black or high gloss Makassar.

Pairing

With 100 ohm output impedance on RCA and 2 x 100 ohm on XLR, the E-Glo SB can run into the line stage of the system over either connection type, and the balanced route suits a system already wired with XLR.

Alternatives

The EAT E-Glo CB is the hybrid sibling in the same case, using two ECC83S valves with a solid state second stage.