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Audio Research REF 250 Monoblocks – Reviews | TONEAudio ...
https://www.tonepublications.com/review/audio-research-ref-250-monoblocks/#:~:text=Audio%20Research%20REF%20250%20Monoblocks%20Perfect%20Balance%20,Ellipsa%20S%20...%20%203%20more%20rows%20
Audio Research Reference 250 SE Amplifier - The …
https://www.theabsolutesound.com/articles/audio-research-reference-250-se-amplifier
A. A new Reference tube amplifier from venerable manufacturer Audio Research is always a big deal. Incorporating significant upgrades from its Reference 250 predecessor, the Reference 250 SE mono amplifier features Tung-Sol’s latest high-current output tube, the KT150 as well as new active and passive parts. Reference 250 owners can have their unit upgraded to …
Reference 250 SE - Audio Research
https://audioresearch.com/wp-content/uploads/2019/03/Ref250SE-Manual.pdf
Reference 250 SE to be a part of your high performance music listening system. Since 1970, Audio Research has been creating some of the world’s finest audio equipment. Each piece is handcrafted in Minnesota, and has been designed to provide many years of listening enjoyment. We understand you are eager to begin listening; however,
Audio Research Reference 250 ... - Audiogon Marketplace
https://forum.audiogon.com/discussions/audio-research-reference-250-capacitor-issue
Audio Research Reference 250 capacitor issue. One of my reference 250amp fuse blown and found that the capacitor is bad and audio research has upgrade kit to replace Teflon capacitors with latest ones. The also have new wiring in the upgrade kit. Has anyone experienced this ? I see they discontinued Teflon capacitors a year or two back.
Audio Research Reference 250 Monoblock Amplifier - …
https://www.theabsolutesound.com/articles/audio-research-reference-250-monoblock-amplifier
Audio Research Reference 250 Monoblock Amplifier. William Zane Johnson, God bless him, may be gone and his path-breaking company, the Audio Research Corporation, may now be owned by an Italian holding company, but in spite of the loss of its founder and the change in proprietorship (which, let me be clear, has not affected the way things are done at Audio Research—all of …
Audio Research Reference 250 monoblock amplifiers - Hi-Fi+
https://hifiplus.com/articles/audio-research-reference-250-monoblock-amplifiers/
The Ref 250 monos replace the popular Ref 210s. They continue the broad move by Audio Research to switch from 6550 power tubes to KT120s, with each chassis containing three matched pairs as power output tubes, a further matched pair of KT120s as line drivers, two 6H30s (one gain stage and one regulator) and a 6550C as regulator.
Audio Research Reference 250 SE Amplifier | Audio Advice
https://www.audioadvice.com/audio-research-reference-250-se-amplifier
The Reference 250 SE features major enhancements, such as a monochromatic appearance, an analog meter with adjustable illumination, a low turbulence fan, and more for high-definition listening. Product only available for in-store purchase and not available for online sale. Features T150 output tubes and a bulk power supply 50 percent larger than its predecessor.
Audio Research Reference 250 Mono Amplifiers - The Audio ...
http://www.theaudiobeat.com/equipment/audio_research_reference_250.htm
Audio Research amps use negative feedback, 8.8dB in the case of the Reference 250. The use of feedback in an amplifier's circuit is controversial, with some makers (Lamm, Atma-Sphere, Conrad-Johnson, to name just a few) considering it a sin of commission.
Reference 250 SE | Audio Research | Shop & Research
https://www.audiogon.com/products/audio-research-reference-250-se
Shop and research Audio Research Reference 250 SE on the largest hi-fi marketplace: listings for sale, forum discussions, and systems featuring Reference 250 SE. Forum The conversation begins and ends here. Bluebook The right price. Every time. Virtual Systems Let the world see what you've built. Merch Rep the community and hobby you love so much.
Audio Research REF 250 Monoblocks – Reviews | TONEAudio ...
https://www.tonepublications.com/review/audio-research-ref-250-monoblocks/
Mono & Stereo © 2021: Audio Research Reference 250 SE NEW
https://www.monoandstereo.com/2015/03/audio-research-reference-250-se-new.html
Audio Research - There is only One Reference®. Power Output: 250 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 250 watts, below .04% at 1 watt. Power Bandwidth: (-3dB points) 5Hz to 70kHz. Frequency Response: (-3dB points at 1 watt) 0.5Hz to 110 kHz.
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