Audio ResearchSP-3a-1usedAudio Research SP-3a-1 Pristine Sound, Great Condition & Working; New CapacitorsFor sale is a vintage Audio Research SP-3a-1 tube pre-amplifier from 1975 in perfect working condition. Some work was done prior to us receiving it, then our techs finalized its functionality to p...1799.00

Audio Research SP-3a-1 Pristine Sound, Great Condition & Working; New Capacitors

Listing ID: lis9gj4h Classified 
 Listed  · 262 Views
Time Left: 16 Days
Ending:
New Retail Price: $795.00

$1,799.00

Buy It NowMake Offer
Condition
8/10
Payment methodsPaypal card

Contact seller after sale to pay via VISA/Mastercard, American Express or Discover

Ships fromChicago, IL, 60622
Ships toUnited States
Package dimensionsunspecified
Shipping carrierLocal pickup only
Shipping costN/A
Agon miniAverage Research Pricing

For sale is a vintage Audio Research SP-3a-1 tube pre-amplifier from 1975 in perfect working condition.  Some work was done prior to us receiving it, then our techs finalized its functionality to perfection.  Only blemishes lie around the screw holes (slight hissing sound during warm-up, but nothing to worry about).  

This particular pre-amp has a high gain stage better suited for lower powered vacuum tube/ solid state amplifiers.  Clean sound with acute detail attention.  

Prior contributions include: (see photos for details)


  • New caps

  • 11 new Capacitors (1 blue/2 black/8 purple)

Tubes (from left to right)

  • tube [no name]

  • Lafayette ECC83/12ax7

  • tube [no name]

  • Lafayette ECC83/12ax7

  • Amparex

  • (phono section) 1 Carry - 1 Electro-harmonix

Our contributions include: (see photos for details)


  • All parts including caps, capacitors, transistors, tubes old/new checked to specification and function.  

  • 2 new red phono section caps

  • 1 Pre-amp Electro-Harmonix Tube

Frequency response: 10Hz to 30kHz

Total harmonic distortion: 0.005%

Signal to noise ratio: 70dB (MM), 90dB (line)

Channel separation: 30dB (line)

Dimensions: 15-5/8 x 5-1/2 x 12-1/2 inches

Weight: 14lbs

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Return Policy
Return Window

Item can be returned within 14 days of receipt.

General Terms

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

Refunds

Buyer will receive a full refund in the original payment method less any shipping charges.

decibelaudio 

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