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Bass Amps
Bass instrument amplification systems consist of a preamplifier, power amplifier and a loudspeaker in a cabinet used with the bass guitar, double bass and similar instruments to make them loud enough to be heard during performances. Commonly called "bass amps", they are distinct from other types of amplification systems, such as the guitar amplifiers used for electric guitar due to the particular challenges associated with low-frequency sound reproduction. This distinction affects the design of the loudspeakers, the size and design of the speaker cabinet and the design of the preamplifier and amplifier. Speaker cabinets for bass amps usually incorporate larger (or more) loudspeakers than those used for the amplification of other instruments. The loudspeakers themselves must also be sturdier to handle the higher power levels.
Bass amp speaker cabinets are typically more rigidly constructed and heavily braced than those for non-bass instrument amplification. They usually include tuned bass reflex ports or vents for increased efficiency at low frequencies. Preamplifier sections have equalization controls that are designed for the deeper frequency range of bass instruments, which extend down to 40 Hz or below. Bass instrument amplifiers are more likely to be designed with cooling fans than regular guitar amplifiers, due to the high power demands of bass instrument amplification. They are also more commonly equipped with audio compression or limiter circuitry to prevent overloading the power amplifier and to protect the speakers from damage due to clipping in the power amp.
Bass amp speaker cabinets are typically more rigidly constructed and heavily braced than those for non-bass instrument amplification. They usually include tuned bass reflex ports or vents for increased efficiency at low frequencies. Preamplifier sections have equalization controls that are designed for the deeper frequency range of bass instruments, which extend down to 40 Hz or below. Bass instrument amplifiers are more likely to be designed with cooling fans than regular guitar amplifiers, due to the high power demands of bass instrument amplification. They are also more commonly equipped with audio compression or limiter circuitry to prevent overloading the power amplifier and to protect the speakers from damage due to clipping in the power amp.
