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Ovation e-Amp Modules

Ovation e-Amp: A 180 Watt Class AB VFA Featuring Ultra Low Distortion

February 2, 2014 · by Bonsai · in Power Amplifiers

The e-Amp is a 180 Watt RMS (very conservatively rated into 8 Ω ) fully balanced symmetrical (‘FBS’) amplifier featuring an emitter follower triple (EFT) bipolar output stage and beta enhanced VAS stage. The amplifier can be configured using jumpers…

Output Coupling Inductors

Output Coupling Inductors

December 1, 2012 · by Bonsai · in Audio Design Library

Inductors on the output of an amplifer are used to isolate the amplifer from capacitive loads at HF and ensure stability.  There has been quite some debate on DIYaudio.com as to whether they are audible, necessary, or just the result of designers…

Small Signal Audio Line Stage Buffer/Headphone Amplifier

February 8, 2011 · by Bonsai · in Pre Amplifiers

This design, which I completed in 2010, takes an LM4562 and marries it to a hefty single ended class A output stage, which can be biased up for either 50 mA or 110 mA. The output stage is included in…

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