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2. Audio crossover - Wikipedia

   en.wikipedia.org/wiki/Audio_crossover

   Audio crossovers are a type of electronic filter circuitry that splits an audio signal into two or more frequency ranges, so that the signals can be sent to loudspeaker drivers that are designed to operate within different frequency ranges. The crossover filters can be either active or passive. [ 1] They are often described as two-way or three ...

3. Headphone amplifier - Wikipedia

   en.wikipedia.org/wiki/Headphone_amplifier

   A headphone amplifier is a low-powered audio amplifier designed particularly to drive headphones worn on or in the ears, instead of loudspeakers in speaker enclosures. Most commonly, headphone amplifiers are found embedded in electronic devices that have a headphone jack, such as integrated amplifiers , portable music players (e.g., iPods), and ...

4. Phone connector (audio) - Wikipedia

   en.wikipedia.org/wiki/Phone_connector_(audio)

   Phone connector (audio) Phone plug mated in a phone socket. The plug's grooved tip is held firmly by the socket's spring tip contact. When not mated, this spring instead connects to the flat switch contact for detecting a plug. A phone connector is a family of cylindrically -shaped electrical connectors primarily for analog audio signals.

5. Scholz Research & Development, Inc. - Wikipedia

   en.wikipedia.org/wiki/Scholz_Research...

   Scholz Research & Development, Inc. Scholz Research & Development, Inc. was the name of the company founded by musician and engineer Tom Scholz to design and manufacture music technology products. Scholz is an MIT -trained engineer who developed many of his skills as a product design engineer working on audio-production equipment at Polaroid in ...

6. Line level - Wikipedia

   en.wikipedia.org/wiki/Line_level

   Line level is the specified strength of an audio signal used to transmit analog sound between audio components such as CD and DVD players, television sets, audio amplifiers, and mixing consoles . Generally, line level signals sit in the middle of the hierarchy of signal levels in audio engineering.

7. CMoy - Wikipedia

   en.wikipedia.org/wiki/CMoy

   CMoy. A CMoy is a pocket headphone amplifier originally designed by Pow Chu Moy. [ 1][ 2] The headphone amplifier is designed around single or dual-channel operational amplifiers (op-amps) such as Burr-Brown 's OPA2134 or OPA2132PA, however, a wide variety of op-amps have been successfully implemented. As the op-amp directly drives headphones ...