Europa

Europa is a 6922/E88CC based tone control preamp built into a more 'conventional' chassis layout, yet still keeping that classic 60's and early 70's look!

Europa is built into a 3U size all aluminum chassis, making it easier to fit Europa into shelves.

The preamp is a classic cathode follower circuit with a tube output buffer and a transistor based constant current source.

The optional phono preamp is a hybrid 6922/E88CC circuit, using a pair of hand matched ultra low noise LSK170 JFET as the input stage and the 1NK60ZR-AP MOSFET as the output buffer, resulting in a dead quiet MM phono preamp stage!

The power supplies are regulated solid state DC, driven by a toroidal power transformer custom made for Erhard Audio.

Europa tone control preamp comes standard with the following controls:

Tone Controls;

Tone Control Defeat;

Loudness;

Stereo/Mono Switch;

Tape/Source selection;

Volume Control;

Balance Control;

4 RCA Input Selection; the source names can be customized at no additional charge.

Silver or black front plate with black or silver aluminum knob. The control pushbuttons are hard PVC and are only available in black.

Tubes are factory new JJ 6922/E88CC's.

Options for Europa:

- a 6922 based MM phono preamp

- Amtrans AMCG film coupling capacitors

- 59 step precision attenuator/volume control

Europa is built to order and will take around 6 weeks to build and ship.

Specifications:

Main preamplifier gain with tone controls centered - 12dB (x4)

Frequency response is 20Hz to 30KHz, +/-0.1dB

Output impedance, between 80 to 100 OHMS OHMS (Variation of the output tube buffer); Input impedance 1M

Tone controls, boost and cut of 12dB

Optional phono preamplifier gain - 41dB - for MM cartridge only.

Optional phono preamp frequency response is accurate to within +/- 0.1 dB of the RIAA curve from 10Hz to 40 KHz

Power consumption: 34W, 40W with the phono option

Chassis size: 13"W x 11.25"D x 3.25"H / 330W x 285D x 82H mm / 2U

Weight: 10lb / 4.5kg