Amps Glossary

An Acoustic guitar is a guitar that is not amplified. Acoustic guitars are typically played unplugged, without an Amplifier.
A device that increases the amplitude of a signal.
A device that increases the amplitude of a signal.
Amps are devices that amplify the signal from the guitar. Amps can be Tube Amps or Solid-State Amps.
A type of Wah pedal that uses sensors to create the Wah effect.
Band Practice is when a band rehearses together. Band Practice is important for learning new songs and for developing Musical skills.
The low frEQuency range of a sound.
The DC Voltage applied to a Valve’s grid that controls the amount of current flowing through the Valve.
A short form of ‘Cabinet’. A box that houses Speakers.
Wheels that can be attached to the bottom of a Cabinet to make it easier to move.
An effect that makes a copy of the signal and slightly detunes it, creating a ‘Chorus’ of sounds.
A guitar tone with little or no Distortion.
An Amplifier that has both the preamp and Power amp in one unit.
An effect that reduces the dynamic range of a signal, making the loud parts quieter and the quiet parts louder.
A type of Distortion that is more gentle and less aggressive than full-on Distortion.
An effect that repeats the signal at a set interval, creating an ‘echo’ effect.
A direct injection output. This is used to send the signal from an Amplifier directly to a mixing console or recording device.
An effect that intentionally distorts the sound of the guitar.
Connecting the metal parts of an electrical device to the ground in order to reduce the risk of electrocution.
EQ is short for EQualization. EQ is a way to adjust the sound of the guitar by changing the frEQuencies that are amplified.
An effect that allows you to boost or cut certain frEQuencies in the signal.
Fender is a brand of Amplifier. Fender Amplifiers are known for their clean sound.
An effect that creates a ‘whooshing’ sound by combining the signal with a Delayed copy of itself.
A pedal that is used to activate or deactivate an effect.
The number of times per second that a sound wave vibrates. FrEQuency response is the measure of how well an Amplifier can reproduce the frEQuencies in a signal.
A type of Speaker that uses a special type of material to dampen the vibrations of the Speaker cone, resulting in a clearer sound.
The raised metal strips on the fingerboard that the player presses down to create different notes.
An abbreviation of ‘effects’.
An effects loop. This is a set of jacks on an Amplifier that allows you to insert effects between the preamp and Power amp stages.
The amount of amplification that an Amplifier provides.
Guitar Players are Musicians who play the guitar. Guitar Players can be soloists or members of a band.
An Amplifier without a Speaker Cabinet. A Head is usually paired with a separate Cabinet.
Units of measurement for frEQuency. 1 hertz (Hz) is EQual to 1 cycle per second, and 1 kilohertz (kHz) is EQual to 1000 Hz.
The measure of opposition to the flow of an alternating current. Impedance is measured in ohms.
The signal level from an electric guitar or Bass. This is usually between -10dBV and +4dBu.
The signal level from a Line level source. This is usually between -10dBV and +4dBu.
Marshall is a brand of Amplifier. Marshall Amplifiers are known for their high quality and their powerful sound.
A control on an Amplifier that adjusts the overall volume of the Amplifier.
The signal level from a microphone. This is usually between -60dBV and -30dBV.
The Middle frEQuency range of a sound.
A type of digital interface that allows electronic Musical instruments and computers to communicate with each other.
A Modeling amp is an Amplifier that can simulate the sound of different Amplifiers. Modeling amps are often used by Guitar Players who want to experiment with different sounds.
Mono signals are single channel, while Stereo signals are two-channel.
A series of sounds that are organized in time to create a composition.
Musicians are people who play Musical instruments. Musicians can be soloists or members of a band.
On Stage refers to the performance of a Musician or band in front of an audience. On Stage, the Musician or band is typically amplified by an Amplifier.
The signal level from an Amplifier’s output. This is usually between -10dBV and +4dBu.
A type of Distortion that is produced when an Amplifier is driven beyond its limits.
A printed circuit board. This is used to mount electronic components on an Amplifier.
Pedals are devices that are placed on the floor in front of the guitar player. Pedals are used to modify the sound of the guitar. Pedals can be used to add Distortion, Reverb, or other effects.
An effect that creates a ‘swirling’ sound by combining the signal with a Delayed and phase-shifted copy of itself.
A type of Amplifier construction where the components are mounted directly on the PCB, without the use of a pre-made circuit board.
The part of an Amplifier that amplifies the signal from the preamp and drives the Speaker.
A type of Power amplifier that uses a push-pull design.
A Practice Amp is a small, portable Amplifier that is used for practicing guitar. Practice Amps are usually less expensive than larger Amplifiers, and they can be used in small spaces.
The part of an Amplifier that amplifies the signal from the guitar.
A control on an Amplifier that adjusts the high frEQuency response of the Amplifier.
The process of adjusting the Bias Voltage on a Valve amplifier. This is usually done when changing the type of Valves used in the Amplifier.
The natural frEQuency of vibration of a material.
An effect that simulates the sound of a room or space.
Riffs are short, catchy phrases that are played on the guitar. Riffs are often used in rock and blues songs.
A type of electronic device or Amplifier that uses transistors instead of Vacuum Tubes.
Solid-State refers to the use of transistors to amplify the signal from the guitar. Solid-State Amps are usually less expensive than Tube Amps, but they provide a brighter sound.
Solid-State Amps are Amplifiers that use transistors to amplify the signal from the guitar. They are usually less expensive than Tube Amps, but they provide a brighter sound.
A device that converts electrical energy into sound.
The signal level from a Speaker. This is usually between -10dBV and +4dBu.
The measure of how much sound a Speaker produces for a given input level. This is measured in decibels (dB).
A device that converts electrical energy into sound waves.
A type of sound reproduction that creates an illusion of directionality and distance using two or more independent audio channels.
A type of pedal that is used to activate or deactivate an effect.
The ability of a note to ring out for a long time.
A control on an Amplifier that adjusts the high and low frEQuency response of the Amplifier.
The high frEQuency range of a sound.
An effect that makes the sound ‘tremble’ by rapidly turning the volume up and down.
A type of Amplifier that uses Vacuum Tubes instead of transistors.
A type of Amplifier that uses Vacuum Tubes instead of transistors.
Tube Amps are Amplifiers that use Vacuum Tubes to amplify the signal from the guitar. They are usually more expensive than Solid-State Amps, but they provide a warmer sound.
Vacuum Tubes are used in guitar Amps to amplify the signal from the guitar. They are made of a metal that is heated to a high temperature and then sealed in a glass envelope. The vacuum inside the tube prevents the metal from oxidizing.
A type of electronic component that uses a vacuum to control the flow of electrons.
A type of Amplifier that uses Vacuum Tubes instead of transistors.
A type of Amplifier that uses a combination of Valves and Solid state components.
A type of effect that creates a ‘vibrating’ sound by combining the signal with a Delayed and phase-shifted copy of itself.
An effect that makes the sound ‘vibrate’ by rapidly changing the pitch of the note.
The measure of the potential difference between two points. Voltage is measured in volts.
A type of pedal that alters the tone of the guitar by changing the frEQuency response.
The measure of the power of an electrical signal. Wattage is measured in watts.