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Pioneer Spec-2

Stereo Power Amplifier (1976-77)

Description

The Spec-2 is a 250W rack mount stereo power amplifier featuring a current limiter circuit, peak level meters, protection circuit, power switch on/off and impedance selector muting and a temperature detector.

This high power design employs a cascaded differential amplifier first stage, push-pull drive, and darlington triple push-pull circuit with all stages direct coupled (OCL).

Specifications

Power output: 250 watts per channel into 8Ω (stereo)

Frequency response: 5Hz to 80kHz

Total harmonic distortion: 0.1%

Damping factor: 50

Input sensitivity: 2V

Signal to noise ratio: 110dB

Speaker load impedance: 4Ω to 8Ω

Semiconductors: 55 x transistors, 75 x diodes

Dimensions: 480 x 186.5 x 445mm

Weight: 24.3kg

Year: 1976

Downloads

service manual (en)

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