The Pioneer Spec-2 is the most powerful amplifier Pioneer ever made. Introduced in '76, the Spec-2 delivered an absolutely unheard of 250 watts per channel. This specimen has evidence of its rack-mounted past, and is in top operating condition. Beautiful dual meters against a classic silver face, and fully serviced. This may be the one.
- Production
- 1976-80
- Condition
- 9/10
- Serial No.
- MH0359
- Orig. MSRP
- $899.95
- Restoration
- Full 30-point service check
- Replaced output driver transistors
- Replaced bias and drive resistors
- Cleaned controls, switches, and chassis
- Specs
Type Solid-state power amplifier
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 18.9"W x 7.4"H x 17.5"D
Weight 54 lbs.
- Documentation
ON DECK Spec 2 Service 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-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).
- Packing
- Prepare to be impressed. We have arguably the best packing process around. This piece will ship double-boxed, and fully insulated, taking extra care to ensure there's no pressure against the face. First, the component is first wrapped in 8mil plastic. Then, the unit is strapped to a plate inside an inner box to prevent shifting, and padded on all sides. We then suspend the inner box inside a double-walled outer box using shock-resistant foam corners.
- Shipping
- This piece ships to the contiguous United States for a flat rate of $175, which includes our packaging and our insurance. Of course, we'll ship anywhere in the world, just drop us a line and we'll give you an estimate – even if you're just curious.
- Stock No.
- 7990790553821
The Pioneer Spec-2 is the most powerful amplifier Pioneer ever made. Introduced in '76, the Spec-2 delivered an absolutely unheard of 250 watts per channel. This specimen has evidence of its rack-mounted past, and is in top operating condition. Beautiful dual meters against a classic silver face, and fully serviced. This may be the one.
Production
1976-80
Condition
9/10
Serial No.
MH0359
Orig. MSRP
$899.95
Restoration
- Full 30-point service check
- Replaced output driver transistors
- Replaced bias and drive resistors
- Cleaned controls, switches, and chassis
Specs
Type Solid-state power amplifier
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 18.9"W x 7.4"H x 17.5"D
Weight 54 lbs.
Documentation
ON DECK Spec 2 Service 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-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).
Packing
Prepare to be impressed. We have arguably the best packing process around. This piece will ship double-boxed, and fully insulated, taking extra care to ensure there's no pressure against the face. First, the component is first wrapped in 8mil plastic. Then, the unit is strapped to a plate inside an inner box to prevent shifting, and padded on all sides. We then suspend the inner box inside a double-walled outer box using shock-resistant foam corners.
Shipping
This piece ships to the contiguous United States for a flat rate of $175, which includes our packaging and our insurance. Of course, we'll ship anywhere in the world, just drop us a line and we'll give you an estimate – even if you're just curious.
Stock No.
7990790553821
