OTOMON LAB tube preamplifier * phono stage included

Input voltage 100,117,230 selectable.

Using parts inside amplifier for order made version

Duelund coupling condenser for output
Top class oil condenser and resistor on phono stage.
Power supply is separated to cut off noise, hum from power supply.
Signal path for phono stage is separated to prevent unexpected noise, hum.
Point to point wiring, no PCB
Zero NFB schematic
Phono stage is CR type.
All tubes are included.

You can price down the amp by down grade the parts using inside the amp, but I highly recommend you using parts that I recommended above.

Sound is very wide range, quiet and detail. No color is added to sound, true sound, live and dynamic.

Tube using in amplifier
Recitifier tube : GZ-34 x 1
Phono stage: 12AY7 ( 12AT7) x 4
Line, AUX stage: 12AY7(12AT7)x2

Specification:
Line, AUX:
Response frequency 10Hz ~ 80KHz
Hum level: Under 0.1mV

Phono stage:
Response frequency 20Hz ~ 18KHz
Hum level: 0.12mV