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What causes "positive feedback" in audio amplifier ...

    https://electronics.stackexchange.com/questions/221206/what-causes-positive-feedback-in-audio-amplifier
    However, sometimes mid presentation the audio amplifier will go into a "positive feedback" mode where the sound coming out of the amplifier gets increasingly louder and louder until it suddenly drops off. At first I thought that my voice was too loud which causes the amplifier to hit the saturation limits. However, that does not explain why the sound volume gradually …

AGD Productions Audion Amplifier - Positive Feedback

    https://positive-feedback.com/reviews/hardware-reviews/agd-productions-audion-amplifier/
    The switching-type amplifier, was given the moniker Class D, likely because A-C was taken. Class D was by British Scientist Alec Reeves in the 1950's. Class D audio amplifier kits can be traced all the way back to the 1960's. Historically, switching speed, and timing inaccuracies have been the largest limiting factor for Class D amplifiers.

Positive Feedback

    https://positive-feedback.com/
    When I started writing music reviews for Positive Feedback, David gave me the brief to focus on high resolution DSD and DXD recordings. I think this was his way of challenging me to make the transition from an analog-only vinylholic to this new digital audio world into which I'd been plunged. And, so, I've found...

PS Audio Stellar M1200 Power Amplifier - Positive …

    https://positive-feedback.com/reviews/hardware-reviews/stellar-m1200-power-amplifier/
    Zero Feedback. Ahh feedback, the boon and the bane of the audio engineer. Now, I'm no engineer, and I don't even play one on TV, but I've been told this simple truth by some of the best engineers I know: The easiest way to make your amplifier measure great is to use an abundance of local and/or global feedback in your circuit.

McIntosh Announces Upgraded ... - positive-feedback.com

    https://positive-feedback.com/industry-news/mcintosh-announces-upgraded-versions-of-two-of-its-award-winning-integrated-amplifiers/
    The New MA9500 and MA8950 Offer Additional Performance Benefits (Binghamton, NY) February 9, 2022 – McIntosh is proud to unveil its MA9500 and MA8950 Integrated Amplifiers, which replace the award-winning MA9000 and MA8900 and add performance enhancements to these already outstanding products. Dynamic headroom has …

CanEVER Audio La Scala Amplifier - Positive Feedback

    https://positive-feedback.com/reviews/hardware-reviews/canever-audio-la-scala-amplifier/
    CanEVER Audio La Scala Amplifier review. This article was written by and contributed to Positive Feedback by Roland Dietl of our affiliate publication in Germany, HiFi Statement. You may remember the ZeroUnoDAC and the ZeroUno PLUS looking like a small, tubed power amp, which inspired me a lot.

Audionet WATT Integrated Amplifier - Positive Feedback

    https://positive-feedback.com/audio-discourse/audionet-watt-integrated-amplifier/
    To my ears, it truly is an integrated amplifier for all seasons. It should come as no surprise to regular readers of Positive Feedback, or any of a host of other print and online audio journals, that the creative minds at Germany's Audionet are on a roll—big time! The Teutonic upstarts first stunned U.S. listeners and reviewers with the domestic release of their …

zeeba - Positive Feedback

    https://positive-feedback.com/Issue46/zeeba.htm
    The Rogue and Hafler are each on their own twenty amp circuits. The front-end equipment is on another. The fifteen amp circuit is not in use at the moment. I have a pair of AKG K240 headphones. SECOND SYSTEM. LOUDSPEAKERS Quad 21L 2 loudspeakers. ELECTRONICS VTL 50-50 stereo tube amplifier. Audio Experience +R tube preamplifier. SOURCE

Furutech NCF Booster - Positive Feedback

    https://positive-feedback.com/reviews/hardware-reviews/furutech-ncf-booster/
    Furutech NCF Booster Performance-enhancing Connector and Cable Holder and NCF Booster Signal Cable Riser and RCA/XLR Stabilizer. Marc Phillips has been doing music reviews for Positive Feedback for quite a while now. In the interest of full disclosure, he is also a distributor (Colleen Cardas Imports), and has a separate life selling fine audio ...

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