TT650 Audio Headphone Amplifier HD650 Lehmann Circuit OPA2134PA OP AMP Unassembled

TT650 Audio Headphone Amplifier HD650 Lehmann Circuit OPA2134PA OP AMP Unassembled

Specifications:
- Spare parts, assemble it yourself.
- Transformer: Talema transformer
- Main filter electrolysis, 40V 4700uF
- Input coupling capacitor: SIEMENS audio capacitor
- New WIMA nonpolarized capacitor
- Transistor: RS source new original BD139 BD140-16; BC 550 BC560, and paired with tester.
- Resistance: WEL senseless resistance
- Original ALPS RK27 potentiometer; Neutrik 6.35 headphone output; TYCO self recovery insurance
- Connection: 4N oxygen free copper audio signal line
- RCA: American CMC oxygen free copper terminal
- OPA2134PA double OP AMP

Parameters
- Frequency range: 10Hz-35kHz.
- Adaptive impedance: 8-2k
- Distortion: < 0.001% (6mW/300 Europe)
- Output power: 200mW/300 euro; 400mW/60
- Input interface: RCA interface x 1, USB interface  
- Output interface: 6.3mm interface x 2, RCA interface
- Input impedance 47K ohm;
- Frequency response 10Hz (-0.3dB) -35KHz (-1dB);
- Output power 300 ohm /200mW, 60 ohm /400mW;
- Size: 280x110x44mm;
- Weight 1.5Kg

Package Contents:
- 1 x TT650 Headphone Amplifier
- 1 x Power cable