Pathos InPol Heritage Tube Hybrid Integrated Amplifier

InPol (Inseguitore Pompa Lineare - Linear Pump Follower) is a Pathos patented system that allows for much greater output in pure class-A. This fully balanced circuit uses a single solid-state component in follower configuration, with a high-current gain and voltage gain.

The tube amplifier amplifies the input signal voltage, and InPol supplies the current to drive the loudspeakers without any further amplification. The technology allows an increase in the theoretical output in pure class-A of between 25 % & 50 %. Together with a low output impedance and a double InPol circuit, the amplifier offers a high damping factor for immense control over the loudspeaker drivers. 

The digital bias/gain set technology with intelligent control is entrusted to the same microprocessor which regulates the volume, thus guaranteeing the performance of the amplifier itself and its ability to drive the loudspeakers efficiently. 

Specifications

• Type: Pure class A, double INPOL technology, fully balanced digital bias/gain set technology
• Tubes:
  2 x ECC803S Tung-Sol
  2 X 6H30 Sovtek
• Output power: 2 x 80 watt @ 8 ohm
• Frequency response: 2 Hz – 200 kHz ± 0.5 dB
• Max input voltage: 10 VRMS
• Input sensitivity: 780 mVRMS
• Input impedance: 20,000 ohm
• Volume regulator: Purely resistive relays
• THD: 0.1% @ 80 W
• S/N Ratio: > 100 dB
• Gain: 33 db unbalanced, 39 db balanced
• Analog inputs: 2 x XLR, 4 x RCA line inputs
• Digital inputs (only with optional HiDac Mk2 board): 1 x USB B , 1 x S/PDIF coaxial, 1 x S/PDIF optical
• Outputs: 1 x pre out RCA, 1 x pre out XLR. Four levels of output gain, phase selection
• Dimensions: 21.8" (D) x 17.7" (W) x 9" (H)
• Net Weight: 127.8 lb (58 kg)

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