Pioneer SPEC-1 rack mount stereo pre-amplifier, professionally refurbished by Audio Lab of Cambridge, Massachusetts, with 90 day warranty. Warranty dates from 29 January, 2020 and transfers entirely to the new owner.

This is a 'Universal Voltage' model, capable of operating at 120, 220 or 240 volts. Excellent functional and cosmetic condition. All functions tested and passed, Face plate cleaned and presents very well.

Notes from the tech (see photo #2):
Cleaned and restored all switches & controls, relays, connectors, jacks & ground connections. Re-soldered intermittent solder connections. Replaced defective capacitors. Checked / aligned all power supply voltages. Aligned DC amplifier DC offset, bias / idle current. Complete test of all functions and operations.

Ships worldwide. Quoted international shipping estimate is for shipping to Australia, the furthest destination from my location in the USA. Please inquire for a shipping quote to your specific international location. The package will be fairly large, heavy and delicate and the unit will be packed with great care, so please keep in mind that shipping may be a significant added expense.

From the owner's manual:
Pioneer Spec-1 Rack Mount Stereo Pre-Amplifier (1976-80)

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.

Specifications
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

Product Specs

Condition
Very Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.learn more
Brand Pioneer
Model SPEC-1 Stereo Preamplifier
Finish Silver
Categories Preamps
Year 1976 - 1980
Made In Japan

Great Reverb buyer. A++

John J. - March 19, 2020

Smooth transaction, item just as described!

David Z. - March 01, 2020

Super fast response and shipping. item as described, very happy with the purchase!

Ray S. - February 07, 2020

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Shipping Policy

Available for local pickup from Andover, MA, United States

Ships from Andover, MA, United States to:

Continental U.S.
$70.00
Everywhere Else
$350.00

Will ship worldwide. In addition to shipping cost buyer assumes all customs and excise taxes, duties, etc.

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Return Policy

Return Window

This product can be returned within 7 days of receipt.

General Terms

Items must be returned in original, as-shipped condition with all original packaging and no signs of use. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.

Refunds

Buyer receives a full refund in their original payment method less any shipping costs and a 10% restocking fee.

Special Conditions

Returns accepted on damaged or defective items only.

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Booty

Andover, MA, United States
Joined: Apr 2014

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As low as $123/month

Pioneer SPEC-1 Stereo Pre-amp Universal Voltage, 90 Day Warranty Pro Refurbished
$1,399
+ $70 Shipping