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Vacuum Tube Audio SP9 - 2016 build - tubes4hifi

    http://tubes4hifi.com/SP9-2016.htm
    Vacuum Tube Audio SP9 - 2016 build these photos document a recent 2016 build of an SP9 preamp lots of photos loading, this may take a minute . . . . bare circuit board, ready to stuff with parts resistors and diodes installed all parts installed …

audio research

    https://audioresearch.com/wp-content/uploads/2021/08/SP9_Manual.pdf
    replacement tubes need not be the expensive, low-noise variety --Audio Research branded vacuum tubes obtained from your audio dealer will provide the best performance and reliability. Although the SP9 contains an on-board power supply (as opposed to the SPll 's isolated

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 - …

Audio Research SP9 preamplifier | Stereophile.com

    https://www.stereophile.com/tubepreamps/739/index.html
    All the input and output sockets are gold-plated Tiffanys and the SP9 has inputs for four line-level inputs—Video sound, CD, tuner, and spare—in addition to inputs and outputs for two tape recorders.

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 SP-9 mkII Hybrid Vacuum Tube …

    https://www.ebay.com/itm/353841949587
    Here is a great sounding preamplifier from Audio Research - the SP-9 MKII. It has a nice pair of Gold Pin JJ E88CC tubes installed. Gold Pin JJ E88CC vacuum tubes installed. Local Pickup in …

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