Class-A Monaural Power Amplifier


Do not get confused with its elegant looking silhouette. These pair of amplifiers will make your loudspeaker 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.

200 Watts true Class-A operation

Smart PCBA’s and mechanical architecture allow shortest paths without any internal wiring

Precision speaker control through innovative feedback concept


  • Battery powered, Dual-Chassis & Dual-Mono configuration

  • Both channels, supply units and non-audio circuits are physically separated, shielded and electrically isolated

  • Battery supply for audio circuits – each channel is powered by its own battery bank

  • At least 15 hours battery operation and a smart automatic function will activate charging mode when the battery becomes empty, or preamp is switched off

  • Short audio signals paths without any internal wiring

  • An overall symmetrical design

  • Separate grounds for left and right channel

  • Class-A operation, all discrete audio circuitry

  • DC signal coupling with Servo-Control

  • Symmetrical relay volume attenuator

  • 2 × 120 000 µF of power supply-filter capacitance

  • Adjustable input sensitivity and channel balance

  • Full HT bypass function for all inputs

  • The output phase invert function

  • Two custom made low-noise and low-radiation toroidal transformers in decoupled and suspended mount cases

  • Own physically separated and electrically isolated power supply for non-audio circuits

  • Adjustable feet with integrated spikes

  • User-selectable Battery or AC Mains operation mode

  • Built-in Class-A headphone amplifier

  • User-selectable Auto Power Off mode

  • Auto brightness controlled graphical display and status LED

  • Infrared remote control

  • Built-in MC/MM Phono stage with remotely controlled settings

  • System rem. control for power amplifier*

*works only together with appropriate BLOCK AUDIO Power Amplifier


Distortion: THD+N <0.0005 %, IMD <0.0007 % (at 6 Vrms out)
Frequency Response: DC – 300 kHz -0.5 dB, DC – 20 kHz -0.01 dB
Signal/Noise Ratio: >130 dB A weighted, >128 dB unweighted (related to full output)
Channel Separation: Infinite (>130 dB)
Max. Voltage Gain: +12 dB balanced, +18 dB unbalanced
Input Impedance: 40 kΩ balanced, 20 kΩ unbalanced
Output Impedance: 50 Ω balanced, 25 Ω unbalanced
Maximum Output Voltage: 20 Vrms balanced, 10 Vrms unbalanced
Inputs: 4 balanced (XLR) pairs, 5 unbalanced (RCA) pairs
Phono Input: 1 unbalanced (RCA) pair
Outputs: 2 balanced (XLR) pairs, 2 unbalanced (RCA) pairs
Phones Output: 3 pole XLR receptacle and 6.35 mm / 1⁄4″ stereo jack
Battery Operation Time: >15 hours
System Remote Control: Yes*, Neutrik RJ45
Power Consumption: 150 W max. at charging, 50 W at idle, <0.5 W in Standby
Mains Voltage: 230 / 115 V AC ±10 %, 50 / 60 Hz (factory pre-configured)
Dimensions – Line: 460/18.1(w) × 105/4.1(h) × 360/14.2(d) mm/inch
Dimensions – Power: 460/18.1(w) × 105/4.1(h) × 360/14.2(d) mm/inch
Weight in total: 28 kg / 62 lbs., ~40 kg / 88 lbs. shipping



NEXTEL® Suede Coating – dark anthracite