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Audio Research LS-25 Mk I GNSC Ref Mod - Audio Asylum Trader
https://www.audioasylumtrader.com/ca/listing/Preamplifier-Tube/Audio-Research/LS-25-Mk-I/GNSC-Ref-Mod/145884
The mod consists of three large blackgate cans in the power supply, AC filtration, V-Cap OIMP caps bypassed by V-Cap TFTF caps as coupling caps, Caddock resistors in the signal path, Stealth rectifiers, damping of chassis, critical caps, circuit traces, and other areas where vibration is detrimental to sound quality.
Audio Research LS-7 LS7 upgrades suggestions
https://forum.audiogon.com/discussions/audio-research-ls-7-ls7-upgrades-suggestions
Hello all, I just acquired an Audio Research LS-7 and would like to make relatively simple upgrades to take it to another level. I have searched online but found very little information, so any and all suggestions are very appreciated.
Audio Research – High-end audio equipment
https://audioresearch.com/
Audio Research continues its dedication to unparalleled musical expression and crafting components of the highest quality and lasting value for its customers. Our long-term dedication to service is peerless in this industry (Audio Research, with few exceptions, can repair anything ever produced during its entire history).
Audio Research LS1 Line Stage Amplifier – Horizon Records
https://horizonrecords.net/audio-research-ls1-line-stage-amplifier/
The Audio Research LS1 Line Stage Amplifier is designed to accommodate music lovers who exclusively use line-level input sources — digital or analog — for the reproduction and enjoyment of music in their home audio systems. In technology, the LS1 draws heavily upon the proven hybrid circuitry used in Audio Research preamplifiers. A single 6DJ8 dual triode vacuum tube is …
Audio Research LS7 - My Set Up At Home - HiFi WigWam
https://www.hifiwigwam.com/forum/topic/12698-audio-research-ls7/
Audio Research LS7 Audio Research LS7. By Legion of One, May 15, 2008 in My Set Up At Home. Share More sharing options... Followers 0. Recommended Posts. Legion of One ... I've opened her up and had a careful look round and all …
Audio Research LS17se vs LS27 - Audiogon Discussion Forum
https://forum.audiogon.com/discussions/audio-research-ls17se-vs-ls27
Audio Research LS17se vs LS27. I had the opportunity to buy an Ls27 a while ago but I settle for the LS17se due to price. I know that both of these preamps are now old hat nowadays, but people are still asking the question and no one is answering it. I was at my dealer a month ago looking for power cables and saw a black Audio Research LS27.
Audio Research LS7 - Audiogon Discussion Forum
https://forum.audiogon.com/discussions/audio-research-ls7-still-a-good-performer
Audio Research preamps have come a long way in the last 20 years or so. I would try to find an LS16 mk2. The LS16 mk2 and LS25 mk2 were two of the first ARC preamps to use the 6H30 tube. They are more detailed and holographic than previous preamps. A huge improvement even over the original LS16 and LS25 preamps.
audio research LS25 preamp | Page 2 | diyAudio
https://www.diyaudio.com/community/threads/audio-research-ls25-preamp.79653/page-2
2009-03-08 10:37 pm. #39. If you look at the datasheet you will notice there is a limit on cathode to heater voltage of 130v. At lower supply voltages biasing the heaters at 0v works fine and at higher the hum is minimised when the heater is biased at a positive voltage, in this case 70v. The transformer output is around 18v ac.
What's Wrong With The LS-26?? - High End Audio, Stereo and ...
https://www.audioshark.org/audio-research-corporation-arc-36/whats-wrong-ls-26-a-9319.html
Had it for about 1 year. There is nothing wrong with the LS-26. As to your question about the LS-25 MkI vs the LS-26, there is a difference. The LS-25 Mk II onwards marked ARC's switch to a more modern neutral sound in their preamps coinciding with the switch to the 6H30 tubes in their pres.
ARCDB
https://arcdb.ws/LS2/LS2.html
The Audio Research Database (ARCDB) provides information about past and present products from ARC (Audio Research Corporation) Home. Literature. Museum. Patents. LS2. Description [ No data found ] Revisions. LS2 MKII (1994) LS2B MKII …
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