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Audio Research SP-9 Preamplifier – Old School | TONEAudio ...
https://www.tonepublications.com/old-school/audio-research-sp-9-preamplifier/
The Audio Research SP-9 redefined the term “bullet-proof.” While previous all-tube models often encountered noise, channel imbalance, hiss and distortion, this new hybrid design was dead quiet, linear, and most of all, musical. The SP-9 hit retailer’s shelves in 1987 with an MSRP of $1,695 and offered tremendous value.
Audio Research SP9 preamplifier | Stereophile.com
https://www.stereophile.com/tubepreamps/739/index.html
Audio Research SP9 preamplifier J. Gordon Holt , Various | Nov 29, 1995 | First Published: Nov 29, 1987 Following the introduction of their very expensive, tube/FET hybrid SP11 preamplifier, there were rumors that Audio Research was working on a hybrid tube/transistor preamplifier targeted to cost less than $2000.
Audio Research SP-9 | Tube | Audiogon
https://www.audiogon.com/listings/lis9i68j-audio-research-sp-9-tube
Audio Research SP9 preamplifier J. Gordon Holt, Various | Nov 29, 1995 | First Published: Nov 29, 1987 Following the introduction of their very expensive, tube/FET hybrid SP11 preamplifier, there were rumors that Audio Research was working on a hybrid tube/transistor preamplifier targeted to cost less than $2000. The rumors were confirmed when ARC showed a black-and-white …
Audio Research SP9 preamplifier Page 2 | Stereophile.com
https://www.stereophile.com/content/audio-research-sp9-preamplifier-page-2
Audio Research SP9 preamplifier Page 2. Sound Quality. On first listen, using high-level sources only, I am saddened to report that the sound was not good. In fact, it was hard, rough, thin, and both spatially and dynamically compressed. The phono preamp added more of the same of everything. The adjectives I used above—and I gave considerable thought to their choice—do …
Audio Research SP9 Review - VintageSonics
https://vintagesonics.com/reviews/amplifiers/audio-research-sp9-review/
The SP9 is a fantastic do-it-all preamplifier that’s beautifully crafted, easy to use and own, and just about reasonable. Audio Research Corporation has created a great many pre and power amplifiers over the years, but the SP9 stands out as a great do-it …
Audio Research SP9 MKII Preamplifiers user reviews : 4.6 ...
http://www.audioreview.com/product/amplification/preamplifiers/audio-research/sp9-mkii.html
The preamplifier has kept up with the continuing improvemenst in the rest of the system. The SP 9 mk II is a sensible choice, especially given the low prices on the 2nd (or 3rd) hand market. NAD 1020, Copland 301, Music Reference RM 5, ARC LS2B, ARC LS3B, QUAD 405-2, Futtermann OTL amplifier, ARC VT 100 mkII.
Audio Research SP-9 MKII Amplifier for sale online | eBay
https://www.ebay.com/p/110900181
item 2 Audio Research SP-9 mkII Hybrid Vacuum Tube Preamplifier - MM MC Phonostage 2 - Audio Research SP-9 mkII Hybrid Vacuum Tube Preamplifier - MM MC Phonostage $830.00 24 bids 2d 17h item 3 Audio Research D400MKII Solid State Stereo Power Amplifier 3 - Audio Research D400MKII Solid State Stereo Power Amplifier
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