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General| Damping Factor | 50 |
|---|---|
| Input Sensitivity | 2.5mV (MM), 150mV (line) |
| Speaker Load Impedance | 4Ω to 16Ω |
| Power Output | 75 watts per channel into 8Ω (stereo) |
| Signal to Noise Ratio | 100dB (line) |
| Channel Separation | 60dB |
Detailed steps for disassembling the unit's control section.
Step-by-step instructions for disassembling the preamp unit.
Instructions for safely replacing the power transistor in the unit.
Overview of the circuit's main units and stages, including input stages.
Details of the equalizer circuit stages, components, and performance.
Explanation of the current mirror circuit's function, operation, and benefits.
Explanation of the constant-current circuit's purpose, design, and advantages.
Explains CMRR as an index for differential amplifier quality and its calculation.
Details on differential amplifier input/output behavior, gain, and feedback mechanisms.
Explanation of Darlington connection for increased gain and input impedance.
Details on the tone amplifier's ICL circuit, gain control, and independence.
Description of the power amplifier's DC design, components, and input stages.
Details on the µPA63H dual FET integrated circuit for thermal stability.
Defines SVRR as a measure of output voltage change against supply voltage change.
Explains the DC protection circuit's function and operation to protect speakers.
Procedure for adjusting the center voltage of the unit using rear panel controls.
Procedure for adjusting the bias current of the unit using top view potentiometers.
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