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Amplifiers -- A Brief Introduction PDF Print E-mail
Written by EGNews   
Thursday, 27 July 2006

AmpsInstrument amplifiers come in two main forms. The combination (or combo) amplifier contains both the amplifier and loudspeakers in a single unit. In the other form, the amplifier is separate from the loudspeakers, and joined to them by cables. The separate amplifier is called an amplifier head and is commonly placed on top of one or more loudspeaker enclosures, the amplifier head and loudspeaker enclosures together forming an amplifier stack.

Most amplifiers used with electric guitars are solid state, because they are more reliable, easier to repair, lighter-weight, and less expensive. Despite the drawbacks of vacuum tube amplifiers, such as their heavy weight and higher likelihood of breakdown, some musicians prefer the "vintage" sound of vacuum tube amplifiers, particularly in the genres of blues and rock. Some modern amps use a mixture of both technologies, with 1960s vintage vacuum tubes next to integrated circuits.

With the advent of microprocessors and digital signal processing in the late 1990s, "modelling" amps were developed that can simulate a variety of vintage amplifiers' vacuum tube sounds without the use of vacuum tubes. As of 2005, these modelling amps account for a minority of amp sales.

 

 

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Instrument Amplifier "
Last Updated ( Thursday, 27 July 2006 )
 
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