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Audio Research SP9 preamplifier Guy Lemcoe SP9 Mk.II …
https://www.stereophile.com/content/audio-research-sp9-preamplifier-guy-lemcoe-sp9-mkii-1290
The hybrid SP9 Mk.II uses two 6DJ8 tubes, one in the phono stage and one in the line section, each ringed with tube dampers, like the solitary 6DJ8 in the ARC SP14. The SP9 Mk.II is a revision of the original SP9 introduced in the Summer of 1987, embodying what Audio Research calls a group of 14 different improvements. J.
AUDIO RESEARCH SP9 MKII
https://www.audioantiquary.com/en-us/audio-research-sp9-mkii/
The SP9, here in the Mark 2 version, is Audio Research's best-selling preamp ever. Available on the second-hand market at a modest price when compared to the sonic performance, it is really a "best buy". This specimen is a rare version with black knobs instead of silver as usually proposed. Completely overhauled, the old ALPS potentiometer has ...
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 Pre amplifier vintage Hybrid ...
https://www.eserviceinfo.com/downloadsm/35113/Audio%20Research_SP-9%20MKII.html
SP9 MKII Audio Research.pdf [preview SP-9 MKII] Size: 2442 kB: Extension: pdf: Mfg: Audio Research: Model: SP-9 MKII Original: Descr: Pre amplifier vintage Hybrid valve and FET: Group: Electronics > Consumer electronics > Audio: Uploaded: 06-03-2008: User: madcatsun: Multipart: No multipart
Audio Research SP9 Review - VintageSonics
https://vintagesonics.com/reviews/amplifiers/audio-research-sp9-review/
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-all preamplifier that’s just about affordable. It was one of those fortunate coincidences of fate when the stars aligned to create a fantastic sounding ‘real world’ high-end design that some of us can still ...
Audio Research SP-9 Preamplifier – Old School | TONEAudio ...
https://www.tonepublications.com/old-school/audio-research-sp-9-preamplifier/
Clearly, the Electronic Industries preamp I had on the bench was quite a bit different from the Audio Research SP-9, which was created later in 1987. This preamplifier was a standard tube design. The latter, as Johnson explains it, is the culmination of numerous experiments with transistors and eventually FETs to come up with a hybrid design ...
Audio Research SP-9 MKII Amplifier for sale online | eBay
https://www.ebay.com/p/110900181
item 1 Audio research SP9 Mkii Pre amplifier 1 - Audio research SP9 Mkii Pre amplifier . $1,056.32 2 bids 2h 12m. 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.
Audio Research SP9 preamplifier | Stereophile.com
https://www.stereophile.com/tubepreamps/739/index.html
Audio Research SP9 preamplifier. 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 photo of the SP9 at the 1987 Winter CES.
Audio Research SP9 MKII - Audiogon Discussion Forum
https://forum.audiogon.com/discussions/audio-research-sp9-mkii
Audio Research SP9 MKII. Hello Found two ARC SP9's for sale. The first is the MKII with 6h23p-eb Russian 6922 tubes the second was a SP9 that was sent back to ARC and upgraded to the MKII, it has 2-6922 Sovtek Tubes installed . ... The SP9 MK2 was my first ARC preamp and didn't like it. ...
PRE AMPLIFIER - THE HIGH END AUDIO STORE
http://www.cinereaudio.com/pre-amplifier.html
BALANCED AUDIO TECHNOLOGY VK.5i MADE IN USA The VK-5i is a non-phase inverting, fully balanced, single chassis tubed preamplifier, utilizing eight (8) 6922 and two (2) 5881 vacuum tubes in plate-loaded triode operation. The preamp offers 5 XLR line-level inputs and 3 XLR outputs (2 main, 1 tape).
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