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Class-A Monaural Power Amplifier

Mono Block

Do not get confused with its elegant looking silhouette. These pair of amplifiers will make your loudspeakers go outrageously wild. Inside of the aluminum body there is 90 kilos of pure sound perfection hidden delivering 500 W out of which 200 W are in pure Class-A. Add 120 dB of signal/noise ratio and 5 000 damping factor and you’ll get truly unforgettable experience. Works great alone, but plugging it with the Block Audio preamplifier will get you to a whole new level that cannot be explained, but needs to be experienced.

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200 Watts true Class-A operation
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Smart PCBA's and mechanical architecture allow shortest audio signals and power supply paths without any internal wiring
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Precision speaker controls through innovative feedback concept


  • 200 Watts true Class-A operation
  • A smart PCBA's and mechanical architecture allow shortest audio signals and power supply paths without any internal wiring
  • Precision speaker control through innovative feedback concept
  • All discrete audio circuitry
  • DC signal coupling with Servo-Control
  • 2 500 VA custom made low-noise and low-radiation toroidal transformer
  • Decoupled and suspended mount transformer case
  • 500 000 µF of power supply-filter capacitance (per channel)
  • Thermally coupled rectifiers
  • Adjustable feet with integrated spikes
  • Separate power supply for control and protection circuits
  • Standby with zero power consumption
  • Reversible protection system and Distortion-rise indication
  • User-selectable Eco/Auto Eco bias mode
  • User-selectable Auto Power Off mode
  • Status/Error indications
  • Brightness controlled* front status LED
  • System remote control and temperature displaying*
Dimensioning of limiting areas must not be limited.


Continuous RMS Output Power:
500 W into 4 Ω
250 W into 8 Ω, up to 200 W Class-A
THD+N <0.015 % at rated power
min. 0.002 %, IMD <0.003 %
Frequency Response:
DC - 300 kHz ±3 dB
DC - 20 kHz ±0.01 dB
Signal/Noise Ratio:
120 dB A-weighted
117 dB unweighted
related to rated power
Damping Factor at 8 Ω:
>5 000, DC - 20 kHz
Voltage Gain:
+26 dB or +20 dB user-selectable
Input Sensitivity:
2.25 Vrms at +26 dB gain
Input Impedance:
20 kΩ balanced
10 kΩ unbalanced
1 balanced (XLR)
1 unbalanced (RCA)
2 pairs binding posts
System Remote Control:
Yes*, Neutrik RJ45
Power Consumption:
1 200 W max.
500 W at idle
100 W at idle Eco mode
0 W in Standby
Mains Voltage:
230/115 Vac
factory pre-configured
500(w) × 275(h) × 600(d) mm
90 kg, ˜110 kg shipping


* works only together with appropriate BLOCK AUDIO Preamplifier