Released in the Bicentennial year, this gleaming Pioneer SPEC 1 is one of the more striking preamps you'll find. The brushed-aluminum faceplate with silver knobs and selector switches is a stately interface fitting of such a feature-rich preamp. This specimen is very clean – inside, you'll find fresh-looking caps and virtually no sign of dust. Tested perfectly.
- Production
- 1976-80
- Condition
- 9/10
- Serial No.
- 0BA4072A
- Orig. MSRP
- $499
- Restoration
- Full 30-point service check
- Cleaned controls, switches, and chassis
- Factory Specs
Type Solid-State Preamplifier
Frequency response 10Hz to 70kHz
Total harmonic distortion 0.03%
Input sensitivity 2.5mV (mic), 2.5mV (MM), 150mV (line)
Signal to noise ratio 70dB (MM), 90dB (line)
Output 150mV (line), 2V (Pre out)
Semiconductors 50 x transistors, 33 x diodes
Dimensions 480 x 186.5 x 365mm
Weight 11.2kg
Accessories connecting cord, hex wrench
- Documentation
Pioneer Spec 1 Owner's Manual
- The History of Pioneer
- Pioneer was founded by Nozomu Matsumoto in 1938 in Tokyo as a radio and speaker repair shop. In December 1953 Mr. Nozomu Matsumoto succeeded in developing the first domestic dynamic speaker made of original parts. It was named A-8 and marketed in Japan under the Pioneer brand. It later became the origin of the HiFi ...
[ Read More ]
- Liner Notes
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.
- Stock No.
- 7601411064029
Released in the Bicentennial year, this gleaming Pioneer SPEC 1 is one of the more striking preamps you'll find. The brushed-aluminum faceplate with silver knobs and selector switches is a stately interface fitting of such a feature-rich preamp. This specimen is very clean – inside, you'll find fresh-looking caps and virtually no sign of dust. Tested perfectly.
