Pioneer Spec-1
Rack mount stereo pre-amplifier

Description
The Spec-1 has differential amplifier circuitry incorporated in the equalisation and tone control amplifiers.
This is complemented by a dual positive and negative power supply system for all amplifier sections, which provides improved DC balance and stability, while eliminating click noises due to switching.
An electronic muting circuit, employing a reed relay, blocks surge noise associated with power switch operation.
Downloads
service manual (en)
instruction manual (en)
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