These amplifiers are also used for amplifying low-level signals in multi-channel applications.
amplifier | Amplifier | Instrument amplifier | Williamson amplifier | Valve audio amplifier | Social isolation | Shiva amplifier chains showing spatial filter tubes (white) and Nd:glass amplifier structures (short blue tubes closest to camera). Portions of the 1982 Disney film ''Tron | Negative feedback amplifier | Matchless (amplifier manufacturer) | Isolation booth | International isolation | instrument amplifier | Hōkai Amplifier | Guitar amplifier | Doherty amplifier | base isolation | Algorithms for Recovery and Isolation Exploiting Semantics |