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- A guitar speaker is a loudspeaker – specifically the driver (transducer) part – designed for use in a combination guitar amplifier (in which a loudspeaker and an amplifier are installed in a wooden cabinet) of an electric guitar, or for use in a guitar speaker cabinet. Typically these drivers produce only the frequency range relevant to electric guitars, which is similar to a regular woofer type driver, which is approximately 75 Hz — 5 kHz, or for electric bass speakers, down to 41 Hz for regular four-string basses or down to about 30 Hz for five-string instruments. The cones of these drivers typically range in size from 6.5 to 15 inches (170 to 380 mm) with 10 inches (250 mm) and 12 inches (300 mm) models being the most popular for electric guitar and electric bass combo amps and speaker cabinets. As with all loudspeaker drivers, the magnets are usually made from Alnico, ceramic, or, to reduce weight on more expensive models, neodymium. Higher quality Alnico magnets are reserved for more expensive models. Well-known guitar speaker manufacturers include Jensen, Celestion, Eminence, Electro-Voice, JBL, Peavey, and Vox. Small practice amps often have 6.5 or 8 speakers. Combination (or "combo") amplifier cabinets often have one or more 10 and 12 speakers. The largest speaker "stacks", used in stadium concerts, have eight 10 or 12 in speakers. Bass amplifier speaker cabinets for the bass guitar also often use one or more 10 or 12 in speakers (both 2x10 in and 4x10 in cabinets are popular; in addition, bass cabinets are more likely than electric guitar cabinets to use 15 in speakers. Guitar speakers are designed differently from hi-fi speakers intended for in-home listening to pre-recorded music. Whereas hi-fi speakers are meant to provide as little coloration of the source signal as possible, guitar speakers are often designed to add some type of tonal coloration to the sound. (en)
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