#1
I haven't been playing guitar very long (couple of months) and i've only been using a combo amp so far, but looking through magazines (guitar player, guitar world, edge) it shows bands and their rigs and i just wanted to know:

1. What is a preamp and what does it do? (wiki answer didn't help that much)
2. What is a power amp and what does it do?
Last edited by SPBY at Dec 15, 2008,
#3
To amplify a guitar signal, usually 2 sets of amplification are used.

When you play, first the signal goes to the pre-amp. This takes the tiny signal from the pickups, boosts the level of the signal, and adds some characteristics to the tone.
Then the signal goes to the power-amp. This takes the pre-amps signal and boosts it to levels appropriate for listening to through speakers.

In all-tube heads (or combos), there are preamp tubes and power tubes.
In rack-mount setups, you can buy just one or the other.
#4
Quote by Jack Carver
To amplify a guitar signal, usually 2 sets of amplification are used.

When you play, first the signal goes to the pre-amp. This takes the tiny signal from the pickups, boosts the level of the signal, and adds some characteristics to the tone.
Then the signal goes to the power-amp. This takes the pre-amps signal and boosts it to levels appropriate for listening to through speakers.

In all-tube heads (or combos), there are preamp tubes and power tubes.
In rack-mount setups, you can buy just one or the other.

And the difference in ss/tube is that tube amplifiers use vacuum tubes to generate the signal, while ss amps use transistors.