When you need a little more volume, a great guitar power amplifier will give you everything you need. Whether you're practising at home or in the studio, one of these power amplifiers is perfect for your set-up. Many modern guitar power amplifiers can help give you the sound and feel of playing out of a legendary amp. So when you're looking into making a purchase, it's important to match your power amp to speakers that can handle it. For example, the Rocktron Velocity 100 Power Amp will pump out 40 watts per channel at 8 ohms, whereas the larger Rocktron Velocity 300 Rack Power Amp can provide up to 150 watts per channel, offering a warm and fat tone you'll love when you're jamming to your favorite songs. Making sure your speakers can match up to these power amps will definitely help to maximize your sound. It's also important to make sure your power amplifier has some extra headroom for an undistorted signal. Simply put, headroom is the difference between normal operating levels and maximum levels that the amplifier can handle before distorting and clipping out. A power amp like the Electro-Harmonix 44 Magnum 44W provides a clear sound that can be flipped into overdrive at the flick of a switch, all while providing maximum headroom. Best of all, this particular power amp fits in the palm of your hand. Some guitar power amplifiers also include limiters that prevent you from overloading your speakers, giving you ideal signal levels while protecting your valuable equipment. In the end, it all comes down to finding the right tool to fit your needs. Whether you're setting up a recording studio or you need something a little more portable to take with you on the go, there is a perfect power amplifier for you.