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2. Guitar amplifier - Wikipedia

   en.wikipedia.org/wiki/Guitar_amplifier

   The two common guitar amplifier configurations are a combination ("combo") amplifier that includes an amplifier and one or more speakers in a single cabinet, and a standalone amplifier (often called a head or amp head), which passes the amplified signal via a speaker cable to one or more external speaker cabinets. A wide range of speaker ...

3. Speaker wire - Wikipedia

   en.wikipedia.org/wiki/Speaker_wire

   Speaker wire is used to make the electrical connection between loudspeakers and audio amplifiers. Modern speaker wire consists of two or more electrical conductors individually insulated by plastic (such as PVC, PE or Teflon) or, less commonly, rubber. The two wires are electrically identical, but are marked to identify the correct audio signal ...

4. Damping factor - Wikipedia

   en.wikipedia.org/wiki/Damping_factor

   Damping factor. In an audio system, the damping factor is defined as the ratio of the rated impedance of the loudspeaker (usually assumed to be 8 Ω) to the source impedance of the power amplifier. [1][2][3][4][5][6] It was originally proposed in 1941. [7] Only the magnitude of the loudspeaker impedance is used, and the power amplifier output ...

5. Up to eleven - Wikipedia

   en.wikipedia.org/wiki/Up_to_eleven

   Up to eleven. " Up to eleven ", also phrased as " these go to eleven ", is an idiom from popular culture, coined in the 1984 film This Is Spinal Tap, where guitarist Nigel Tufnel demonstrates an amplifier whose volume knobs are marked from zero to eleven, instead of the usual zero to ten. In 2002, the phrase entered the Shorter Oxford English ...

6. Ground lift - Wikipedia

   en.wikipedia.org/wiki/Ground_lift

   Ground lift. In sound recording and reproduction, ground lift or earth lift is a technique used to reduce or eliminate ground -related noise arising from ground loops in audio cables. It may also increase or decrease noise from other sources. [1] Activating the ground lift on a particular piece of equipment opens the connection between the ...

7. Pickup (music technology) - Wikipedia

   en.wikipedia.org/wiki/Pickup_(music_technology)

   Pickups are usually designed to feed a high input impedance, typically a megohm or more, and a low-impedance load increases attenuation of higher frequencies. Typical maximum frequency of a single-coil pickup is around 5 kHz, with the highest note on a typical guitar fretboard having a fundamental frequency of 1.17 kHz.