Guitar speaker

As with all loudspeaker drivers, the magnets are usually made from Alnico, ceramic, or, to reduce weight on more expensive models, neodymium.

Well-known guitar speaker manufacturers include Jensen, Celestion, Eminence, Electro-Voice, JBL, Peavey, and Vox.

When users daisy-chain a second cabinet with paralleled speakers, they must ensure the amplifier can handle the lower impedance it will see.

Some more expensive bass cabinets with a woofer/horn approach may have additional features, such as circuitry to protect the speakers or horn from overloads or a bi-amplification option.

For bass players in hard rock or heavy metal who are using an overdriven sound, biamplification may be safer for the horn or tweeter; while a clipped, distorted signal can be handled by a heavy-duty woofer, the same clipped signal will come much closer to damaging a horn driver or a tweeter.

At the high onstage volume levels used in large rock and metal concerts, a powerful, overdriven bass signal poses a higher risk of horn damage in non-biamped systems.

The result can sound excessively shrill, scratchy and fizzy, completely different from the smooth tones that listeners hear in recordings or live performances.

When driven hard, guitar speakers produce complex behavior, which affects the sound of the instrument.

A guitar speaker shows a nonlinear frequency response depending on the speaker's load, e.g. the frequency response, and various distortions, at small amplitudes is different from those at large amplitudes.

These devices allow the capture of the sound of a guitar amplifier and speaker being played at high levels, while minimizing "bleed through" between tracks in the mix.

While DI boxes are used to route an electric bass signal to a mixing board, the audio engineer also often uses a mic set up in front of the bassist's speaker enclosure, to capture the bass player's preamped, equalized signal from the speaker cabinet.

It is available in software, "stompbox" pedals, and in some guitar amps with a "cabinet modeling" feature.

Cabinet emulation is complex, but at its core it is the use of digital equalization which, combined with resonance models that reproduce the frequency response of the mounted speaker as well as the internal reflections and standing waves of the cabinet.

Technically, with enough funding and effort, it is possible to emulate a particular speaker/cabinet combination, but so many factors also affect the sound (eg, the room in which the speaker/cabinet is being used, the amplifier driving it, ...) that musical success for a particular observer may be justly debated.