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This article lists manufacturers of bass amplifiers, loudspeakers, and other amplification-related items such as preamplifiers. The amplifiers and loudspeakers used to amplify bass instruments (e.g., the bass guitar, double bass and similar instruments) are distinct from other types of amplification systems due to the particular challenges associated with low-frequency sound reproduction.
For 15" speakers, combo amps and cabinets usually have 1x15", although 2x15" and even 4x15" cabinets exist. A small number of 1x18" bass cabinets are sold (e.g., Trace Elliot). For 10" speakers, the most common combo amp and speaker cabinet configurations are 2x10" and 4x10".
A single amplifier can usually power a woofer and a tweeter only through a post-amplifier crossover filter, which protects each driver from signals outside its frequency range. Bi-amping of speakers requires double the channels of amplification and can be accomplished using two ordinary amplifiers in either a vertical or horizontal arrangement.
There is a wide range of sizes and power ratings for guitar amplifiers, from small, lightweight practice amplifiers with a single 6-inch speaker and a 10-watt amp to heavy combo amps with four 10-inch or four 12-inch speakers and a 100-watt amplifier, which are loud enough to use in a nightclub or bar performance.
A home theater in a box (HTIB) is an integrated home theater package which "bundles" together a combination DVD or Blu-ray player, a multi-channel amplifier (which includes a surround sound decoder, a radio tuner, and other features), speaker wires, connection cables, a remote control, a set of five or more surround sound speakers (or more ...
PS Audio's first product was a standalone phono preamplifier, sold direct to consumers for $59.95. The small unit had a passive RIAA curve sandwiched between two 709C op amps running in class A mode and considered state of the art at the time for solid state. Later iterations of the phono preamplifier were introduced that moved away from the ...
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