I want to use a compressor for my guitar, but I need some tips on what might work. Most guitar amps compress the signal from the guitar. This happens mostly in the power amp stage of the amp. It is caused by the power supply sagging when the guitar drives the amp hard. Different guitar amps compress the signal differently, and there usually are not any controls on the amps to adjust the amount of compression. I want to use a compressor, probably connected between the preamp and power amp, that will allow me to adjust the attack, release, and amount of compression. I will use a power amp that does not compress, so all the compression will come from the compressor. I think this setup will allow me greater freedom and control over the amount of compression and will not force me to switch amplifiers when I want a different compression setting. The only problem is, I don't know which compressor to buy and what settings to make. I cannot find info on the amount of attack, release and depth of compression the various guitar amps typically have. I want to use this for gigging, so I do not need (nor can afford) high end studio quality, but I still want something durable and reasonably good sounding. Probably something in the mid price range. Any ideas about which unit to buy and which settings to make?