AMPLIFIER TECHNOLOGY

All our know how, experience and  passion went into this creation.

We are extremely proud of our amplifiers - everything we though was important - is there.

 

Specification of our monoblocks:

• Single Ended triode mono block integrated amp  (no need for a preamp although it can be useful)

• dimensions WHD : 450 x 140 (250 with tubes) x 500 mm deep

• weight: net 29 kg per each mono before packing (35 kg packed)

• Gross shipping weight of a pair: 70 kg  (170 lbs)

• Power consumption: 180 WPC on idle, per channel

• Input impedance: 50 K

• Output impedance (speakers recommended) 4 or 8 Ohm

• Output transformer: OGONOWSKI / Lampizator  EI type

• High Voltage transformer: Toroidy.pl 

• Biasing: manual  (with exposed pot and meter)

• Volume: Stepped input ladder switch (48 SMD resistor pairs)

• Power transformers total crossection: 700 VA. 4 transformers in total per side

• Anode supply: 920 V DC

• Available front colors: black or silver  (top always silver)

• Input socket topology: one RCA SE or RCA+XLR for balanced (second input possible)

• Biasing range: -60 to -140 V DC  (covers many tube variants)

Possible tubes: GM70, 211, 845 and by request 300B.

The amplifier employs only the most radically “kosher” circuit features like:

  • Single ended triode operation from input to output

  • Pure Class A

  • Zero feedback, neither local nor global

  • Zero solid state parts in audio circuits

  • Unregulated and over specified supplies

  • Separate transformers for each task (four in total per side)

  • Short signal path - from RCA to pot - 2 inches of silver wire, same  from pot to first  tube, same from the first to the second tube and a hop across one capacitor to main tube without additional wiring.

  • Power tube bias current is monitored on analog needle meter

  • No need for triode matching as the bias is set manually.

  • There is a possibility to compensate aging drift on power tubes

  • All tubes will be available forever in plentiful supply (only circa 160 USD per one of  graphite GM70 or 211, or 845 , and 100 USD for all other tubes)

  • Pots can be bypassed completely for the “power amp” operation  mode.

  • 4 and 8 ohm output taps available for perfect speaker matching

2014-03-24 14.34.06
2014-03-24 14.34.06
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GM 70
GM 70
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Pacific - 1
Pacific - 1
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