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Audio Research SP-3 - VINTAGE ALL TUBE PREAMPLIFIER ...
https://skyfiaudio.com/products/audio-research-sp-3-sp3-vintage-all-tube-preamplifier-complete-collector-grade-restoration-w-amperex-tubes
Audio Research SP-3 - VINTAGE ALL TUBE PREAMPLIFIER - COMPLETE COLLECTOR GRADE RESTORATION w/ Amperex Tubes. $4,599. This is a collector grade restoration of a classic and well regarded preamp from Audio Research. The exact model designation is SP3 and t his is an example of the very first production run for this piece.
Audio Research SP-3 preamplifier – Old School | TONEAudio ...
https://www.tonepublications.com/old-school/audio-research-sp-3-preamplifier/
Audio Research SP-3 preamplifier. Back in the mid 1970s, the idea that a preamplifier could provide “straight wire with gain” was an elusive goal. The idea that such perfection could be achieved from a valve model seemed even more unlikely. Yet when the $595 SP-3 preamplifier arrived on the scene in 1972, many audio reviewers proclaimed ...
Audio Research SP-3 preamplifier | Stereophile.com
https://www.stereophile.com/content/audio-research-sp-3-preamplifier
Preview, from Vol.3 No.3: We thought Audio Research's previous-model SP-2C (footnote 1) was excellent, but this is even better—the closest thing available, in fact, to the ideal straight wire with gain. Our sample had a minor glitch—there was a slight "plop" if you rotated the tone controls rapidly—but we could find nothing else about it to criticize.
Audio Research SP-3 | Tube | Beverly Hills, California ...
https://www.audiogon.com/listings/lisaf773-audio-research-sp-3-tube
Audio Research SP-3 for sale. Audio Research has the reputation for the best product support in the industry, which includes service for products that date back to the beginning of the high-end industry and to the founding of o...
Audio Research SP-3A-1 Tube Preamplifier - Restored ...
https://skyfiaudio.com/products/audio-research-sp-3a-1-tube-preamp-restored
Audio Research SP-3A-1 Tube Preamplifier - Restored. Many consider the SP3 as the finest preamp ARC ever produced. Its classic looks and reliable operation have made this piece a favorite among classic collectors. This particular sample came from a collector that didn’t use it very much. It mostly sat on a shelf looking pretty.
Audio Research SP3 Preamplifiers user reviews : 4.3 out of ...
http://www.audioreview.com/product/amplification/preamplifiers/audio-research/sp3.html
I bought this Audio Research SP 3 in mint condition to augment my system that consists of a custom-built pair of 6146 mono amplifier, Thorens 160 Super turntable/ SME 3009 Series IIIs tonearm with Shure V15 type III driving a pair of DQ 10 speakers. The sound is somewhat comparable to the set-up using my ever reliable Precision Fidelity C7 preamp.
Audio Research SP-3, A, & A1 Modification Instructions
http://www.curcioaudio.com/SP-3%20Mod%20Documentation.pdf
Audio Research SP-3, A, & A1 Modification Instructions Page 5 4. Locate R44 (75 ohm, 5Watt) and remove. It will be connected to printed circuit board terminals 32 & 34. Most versions of the SP-3 used resistors that were royal blue in color with a glass finish to the surface of the resistor. There are several of these on the pc
Audio Research Sp-3 Preamplifier | Pre-Amplifiers | Covina ...
https://www.audiogon.com/listings/lisa644h-audio-research-sp-3-preamplifier-pre-amplifiers
Audio Research Sp-3 Preamplifier used Sunny Components Inc, Tue, Wed, Thur, Fri 10.00am-6.00pm.Sat-10am-4pm Closed on Sunday and Monday. 1370 E Cypress St Ste D,E Covina CA-91724 USA Tel: 626-966-6259. Fax: 626-966-5467.
Vintage preamps Part 3, Audio Research SP3 - YouTube
https://www.youtube.com/watch?v=ImDH4k5LrlM
More info on the Audio Research SP3 A1 I reviewed. https://skyfiaudio.com/products/audio-research-sp-3-a1-tube-preampThat one is now sold, but SkyFi has anot...
Audio Research SP-3 - A2 Laboratory. Work shop
https://a2laboratory.hatenablog.com/entry/2021/01/12/155447
Audio Research SP-3. オーディオリサーチのフォノ付コン トロール アンプがドック入り。. 症状は、通電から暫く使っていると次第にハム (？. )が大きくなって使い物にならないとか。. 以前に数回色々な修理屋に出しているそうで、最後の所で、電源に使って ...
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