2007-06-15, 13:11
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Senior Metalhead
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Join Date: Jan 2007
Location: ny
Posts: 242
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in a classic amp 'head' or in a 'combo' (amp+speaker) usually the preamp and poweramp are combined in one unit.
with a rack you can split it up, so you have your preamp for generating tone, and your poweramp for boosting the signal going to your speakers.
pre > power > speakers
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