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Negative feedback in audio amplifiers: Why there is no ...
https://www.edn.com/negative-feedback-in-audio-amplifiers-why-there-is-no-such-thing-as-too-much/
What is negative feedback (NFB)? “Feedback is an arrangement where an amplifier is made to respond to its own output signal in addition to the …
No - feedback amplifier | diyAudio
https://www.diyaudio.com/community/threads/no-feedback-amplifier.197276/
Technically, it isn't a no-feedback design - there's lots of local feedback / degeneration; has to be to get good sound. But it certainly is a non-GLOBAL-feedback amp. jan didden Ok, thanks. I was told that amplifiers without FB sounds well. So - local FB can not be avoided concluded out from your statement. Gudmund G Gudmund Member
Negative feedback in audio amplifiers: Why there is no ...
https://www.edn.com/negative-feedback-in-audio-amplifiers-why-there-is-no-such-thing-as-too-much-part-2/
It is the frequency response that the amplifier would have if no feedback were used. Bandwidth would be less than 10Hz, hence “slow.” “A lot of feedback” refers to the fact that the feedback network whacks the gain down a full 100dB. Closed-loop gain is very nearly 1/B (s). B (s)=0.1, so here's an amp with a gain of ten.
No - feedback amplifier | Page 4 | diyAudio
https://www.diyaudio.com/community/threads/no-feedback-amplifier.197276/page-4
I think this Dynamic Precision A 1 amp is more apt to drive low impedances. It has 16 bipolar output transistor per channel and is capable of output 60 Ampere (120 Ampere peak) . Better in the bass department but I prefer the Patriot for the treble. But the A1 is …
Do No Negative Feedback Amplifiers Sound Better? | AVS …
https://www.avsforum.com/threads/do-no-negative-feedback-amplifiers-sound-better.926202/
When an amplifier manufacturer or reviewer speaks of no negative feedback, what they're referring to is not simply negative feedback, but global feedback compared to local feedback. Also, amplifiers often have DC servo-feedback to keep the DC offset at the output as near to zero as possible, and power supplies can have feedback as well.
Audiophile Myths About Amplifier Negative Feedback ...
https://www.audioholics.com/audio-amplifier/amp-myths-negative-feedback
Reports of amplifiers with lots of feedback in the 70’s were Bigfoot sightings. “I’ve seen an amp with a ton of feedback and I’ve got a fuzzy photograph to prove it.” People thought they were listening to a high feedback amplifier, didn’t like what they heard, concluded feedback was bad and a myth was born.
Audio Power Amplifiers - Leon Audio
http://www.leonaudio.com.au/AES/Sept-25-2012/aes_power_amp_presentation_and_notes.pdf
Valve amp with no O/P transformer 2 coupling caps. Min. phase shift No bypass caps. in feedback path 1943 Hearing aid amplifier Valves developed for this in 1942 Inbuilt mic. above clip for coat pocket Separate batteries and earpiece Output impedance setable from one ohm up to 120 ohms (DIN Spec) Valves are low distortion types
Featuring no-feedback single output circuit with a single ...
https://userweb.117.ne.jp/y-s/YDA-01-new-eng-2.html
With tube amplifiers, we have a sense that even a small amount of feedback makes reproduced sound hard, which significantly diminish the attractiveness of reproduction sound. Inevitably, we assumed a simpler circuit configuration would result in more natural sound. Featuring no-feedback single output circuit with a single transistor
No return single output circuit adoption/Yamamoto sound ...
https://userweb.117.ne.jp/y-s/YDA-01-new-eng.html
A lot of feedbacks are also worried. In the tube amp, I realize that feedback of mere a few hardens sound and reduces the charm of sound by half. Then, inevitably, when this circuit composition was made simpler, I thought that sound would become more natural. The no feedback single output circuit with one transistor for the output stage.
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