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SoundStage! Hi-Fi | SoundStageHiFi.com - Audio …
https://www.soundstagehifi.com/index.php/equipment-reviews/309-audio-research-ls27-preamplifier
The LS27 is a pure class-A design with zero feedback and a fully regulated power supply. The internal circuitry and connections are differentially balanced. Gain is provided by a hybrid audio circuit that includes JFET transistors and two 6H30 triode tubes, the latter rated by their manufacturer to last for 10,000 hours of use.
Audio Research LS 27 review | What Hi-Fi?
https://www.whathifi.com/audio-research/ls-27/review
Presentation majors in subtlety rather than excitement. The Audio Research LS27 is very much in the modern mould of the company’s preamplifiers. That’s not saying an awful lot when it comes to aesthetics, though, because Audio Research’s designs haven’t changed an awful lot over the decades: you could put this product, or the Reference 75 power amp we …
Audio Research LS 27 review | What Hi-Fi?
https://www.whathifi.com/us/audio-research/ls-27/review
The Audio Research LS27 is very much in the modern mould of the company’s preamplifiers. That’s not saying an awful lot when it comes to aesthetics, though, because Audio Research’s designs haven’t changed an awful lot over the decades: you could put this product, or the Reference 75 power amp we tested it with (see below), next to anything the company has …
Audio Research LS27 Preamplifier - The Audio Beat
http://www.theaudiobeat.com/equipment/audio_research_ls27.htm
Audio Research Corporation. 3900 Annapolis Lane North. Plymouth, Minnesota 55447. (763) 577-9700. www.audioresearch.com. The LS27 is Audio Research’s middle-range line stage, sitting between the $3995 LS17 and the $11,995 Reference 5. (The $24,995 Reference Anniversary is a special edition for a small number of moguls and lottery winners.
Audio Research LS27 Tube Preamplifier – SkyFi Audio
https://skyfiaudio.com/products/audio-research-ls27-tube-preamplifier
Audio Research LS27 Tube Preamplifier $0 Absolutely mint and complete - with very few hours of use. Comes with the original remote, double box, manual and all packing materials. Click here for a PDF copy of the Audio Research LS27 Owner's Manual Retail new was $7,000. Audio Research says it best on this preamp:
Audio Research LS27 Preamp - Tube Replacement Sets
https://www.thetubestore.com/shop-by-amp/home-audio-tube-packages/audio-research-amps/audio-research-ls27-preamp
Re-tube your Audio Research LS27 Preamp with our specially selected vacuum tube sets. Our Audio Research tube replacement kits are designed for your amplifier and come in different option levels ranging from OEM to Premium to Ultimate.. We’ve been supplying tubes for Audio Research amps for over 20 years.
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