rotel rhq-10 reference phono-stage upgraded!!

a reference phono stage even compared to current models.
can be used as a stand alone phono preamp and a line stage can be ommited when using only a vinyl source !!
in a great cosmetic and operational status.
upgraded by the upgrade company so this unit sound much better than the stock unit which was already great !
The PCB of the RHQ-10 is made of high-grade fiberglass with 0,1% and 0,01% tolerance metal film Vishay resistors in the signal paths, eq and NFB loop.

The first and head-amp stage is a triple parallel differential fully complementary push-pull ; the second stage is a passive pole low-pass filter ; the third is a low frequency boost and gain stage.

The output stage is a single-ended fully complementary push-pull circuit in Class A. Discrete components throughout.

One input is available, with two outputs : Fixed 1 is for connection to a passive controller or preamplifier which bypasses the volume control ; Variable is for going directly into a power amplifier ; Fixed 2 is for connection to a passive controller or preamplifier when using a moving coil cartridge of extremely low output.

The MM / MC gain & impedance selection however remains mysterious and rests on an ingenious method to minimize any adverse effect upon sound quality often cause by mechanical switching.
The gain switch/attenuator is supposedly the same 4-gang as in the RHC-10 but they don't look equivalent (and that of the RHA-10 is, again, different as well).

Power-supply is done by a (sizeable) low-leakage toroidal transformer ; dual-mono regulations throughout, copper bus bars, liberal heatsinking, sealed output relays, non-magnetic aluminium chassis and Teflon-insulated WBT terminals.

at the moment it is a 220v unit, but can be configured to 110v prior shipping.
paypal please add 4%
thanks for looking !