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Audio Research Sp


Audio Research Sp-4 Preamplifier

$320.00


Audio Research SP-3C Vintage Tube Preamplifier Tested Excellent Condition

$3,499.00


Audio research sp-9 mkII preamplifier

$1,220.00


Audio Research SP14 preamp, black, excellent condition

$1,750.00


Audio Research SP9 with phono preamplifer Stereo

$860.00


Audio Research SP-11 Hybrid Vacuum Tube Preamplifier - Phono Stage -Power Supply

$1,275.00


Audio Research SP-3 Preamplifier - Gold

$2,000.00


Audio Research D51,Audio Research SP3, Macintosh MR77

$4,600.00


Audio Research SP-8 Vacuum Tube Hybrid Preamplifier w/Phono Stage - Made in USA

$1,136.11


Audio Research Preamp. SP-9 mk.III in excellent with PHONO Black Panel

$1,740.00


Audio Research SP9-MKII PreAmplifier Near Mint, Legendary!!

$1,199.99


AUDIO RESEARCH SP-8 MK 1 ULTIMO II Tube Set Genalex Gold Pin Preamp

$334.48


VINTAGE AUDIO RESEARCH SP3A-1 RACK MOUNT W/ORIG BOX,CUSTOM WOODCASE, TELEFUNKEN

$3,195.00


Audio Research SP6C-1 stereo preamplifer tube

$1,499.00


Audio Research SP16L Valve Pre-amp

$1,563.68


AUDIO RESEARCH SP16L VALVE PREAMPLIFIER (KENT)

$1,760.60


NOS RARE ORIGINAL PAIR BLACK FACEPLATE FOR AUDIO RESEARCH SP10 MK I/II PREAMP

$795.00


AUDIO RESEARCH SP-3 ULTIMO II Tube Set Genalex Gold Pin Preamp - Our Best Set

$339.98


Vintage ORIGINAL Audio Research SP-9 Mk II Owners Manual & Schematic

$24.50


AUDIO RESEARCH SP-11 MK I and II ULTIMO Tube Set Gold Pin Preamp

$249.97


Medel's 2 - Audio Research SP-3 Gold Pin Genalex Tube Sets 12AX7/ECC83/B759

$629.97


Medel's AUDIO RESEARCH SP-11 Tube Set -2 Sets + 12AT7 EHX GOLD PIN TUBE -4 Tubes

$439.68


Vintage ORIGINAL Audio Research SP-6 Preamplifier Owners Manual - Preamp RARE

$30.00


AUDIO RESEARCH SP17 PREAMPLIFIER WITH PHONO STAGE

$2,543.09


Audio Research SP-3A-1, SP-3A, Owner's Manual, Complete with Schematic.

$49.95


Vintage ORIGINAL Audio Research SP-6A Preamplifier Owners Manual - Preamp RARE

$25.00


GENERAL RADIO W5MT3A METERED VARIAC FOR AUDIO RESEARCH D150 SP3 TUBE AUDIO AMP

$449.00


Audio research sp3a tube preamp 12ax7 vintage audio

$3,500.00


Vintage ORIGINAL Audio Research SP-10 Preamplifier Owners Manual - Preamp

$24.95


Vintage ORIGINAL Audio Research SP-6C-1 Preamplifier Owners Manual -Preamp RARE

$34.95


AUDIO RESEARCH SP-15 ULTIMO Tube Set Gold Pin Preamp

$73.48


AUDIO RESEARCH SP-16 ULTIMO Tube Set EHX Gold Pin Preamp

$131.23


RARE Audio Research SP6 Zener Power supply board BRAND NEW!!!

$29.99


AUDIO RESEARCH SP-16 ULTIMO II Tube Set Genalex Gold Pin Preamp - Our Best Set

$254.98


LINE VOLTAGE VARIAC 4 AUDIO RESEARCH D150 SP3 TUBE AUDIO POWER AMPLIFIER PREAMP

$289.00


AUDIO RESEARCH SP-6A/6B ULTIMO Tube Set Gold Pin Preamp

$142.48


Vintage ORIGINAL Audio Research SP-5 Preamplifier Owners Manual - Preamp

$28.95


Audio Research SP-9 ULTIMO Tube Set Gold Pin Preamp

$52.48


Vintage ORIGINAL Audio Research SP-7 Preamplifier Owners Manual - Preamp RARE

$27.95


Vintage ORIGINAL Audio Research SP-6C Preamplifier Owners Manual - Preamp RARE

$34.95


AUDIO RESEARCH SP-16L ULTIMO Tube Set EHX Gold Pin Preamp

$67.48