Phædrus Audio have recently introduced the EC8020-pH Supertube™, our re-creation of this unique device. The Groove Sleuth EC8020 incorporates a couple of these tubes to create an incredible non-equalising phono preamplifier.
Power for the Groove Sleuth EC8020 is provided by the supplied, separate Resolve HT power supply. The internals of the power-supply and the back panel are illustrated.
Click here for the manual for the Groove Sleuth EC8020.
Size: 2 boxes - 112 × 50 × 225 mm (W-H-L)
Preamplifier Supply: Low-noise high-tension DC input on screw locking connector
Power: Less than 10 watts*
Inputs: Unbalanced, MC cartridge or PHLUX-II active-cartridge
Sensitivity: 500µV RMS (-64dBu) or nominal 5mV (-44dBu) @ 5cm/s
Outputs: Gain (to computer output): × 630 or +56dB**
iLOOP output: Used to adjust cartridge loading
Distortion: Better than 0.05% THD on 1kHz at 0.5mV RMS input
Equivalent input noise (MC): -144dBu†
Equivalent input noise (PHLUX): -122dBu‡
Max input: Greater than 18mV RMS (31dB above nominal level)***
Max output: 10V RMS (+23dBu)
* The unit is intended to remain energised all the time.
** × 50 (34dB) in PHLUX-II mode.
† Main output, 20kHz bandwidth, A-weighted, input shorted.
‡ Main output, 20kHz bandwidth, A-weighted, input shorted.
*** Greater than 200mV RMS in PHLUX-II mode.
Phædrus Audio reserves the right to alter specifications without notice.
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