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Linear Tube Audio- Any feedback on their amps/ Preamp?
https://forum.audiogon.com/discussions/linear-tube-audio-any-feedback-on-their-amps-preamp/post?postid=1348272
I recently was told by another member about Linear Tube Audio as they are using David Berning's designs (approved by David) and are made in the USA. The Micro ZOTL 2.0 pre has just received great reviews and they also offer the ZOTL 40 and ZOTL 10 amps. I would really like to get some feedback from someone that owns the pre and one of the amps.
Feedback in Audio Amplifiers.
https://www.angelfire.com/electronic/funwithtubes/Amp-Feedback.html
The noise from tube hiss and hum will be reduced by the same amount as the gain so the signal to noise ratio remains the same. Good thing! In all of these examples the amount of feedback is very close to 20 dB. What is 20 dB of feedback? Audio people talk in terms of dB of feedback. Decibels are a way of expressing a ratio of two voltages or ...
Audio Feedback- What causes it and how can I fix it. - …
https://www.youtube.com/watch?v=DfwdY3sMfkY
This video explains why audio feedback occurs and how you can setup your equipment to minimize it. Studio gear I use or recommend: https://www.amazon.com/sho...
4.4 Global Negative Feedback in a vacuum tube amplifier ...
https://www.vtadiy.com/book/chapter-4-integrated-push-pull-vacuum-tube-amplifier/4-4-global-negative-feedback/
4.4 Global Negative Feedback in a vacuum tube amplifier. Push-pull stages are able to reduce harmonic distortions, specifically second order distortions, produced in the stage itself. When an input stage has a single-ended configuration and operates in non-linear areas, it produces distortions. If the distorted pre-amplified signal is given to ...
Why Tubes Sound Better - Ken Rockwell
https://www.kenrockwell.com/audio/why-tubes-sound-better.htm
When a tube amp has a problem, the output transformers saves the speaker from shorted output tubes. Completely Isolated Outputs. The best tube amps, like McIntosh, have separate feedback windings, so the output taps are completely isolated from everything else.
Audio feedback - YouTube
https://www.youtube.com/watch?v=rI90lhYAffo
Here is an example of audio feedback using a microphone and a speaker.From MacGyver Season 3
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