Please be aware that the following packages are from unofficial repositories. That means they are not reviewed by openSUSE and may contain unstable or experimental software.
Simple Linux amplifier for jack
guitarix is a simple mono amplifier to jack with one input and two output's. Designed to get nice trash/metall/rock/guitar sounds. Available are the controls for bass, treble, gain, balance, distortion, freeverb, impulse response (pre state), crybaby(wah), feedback/feedforward-filter and echo. A fixed resonator will use, when distortion is disabled. guitarix is licensed under GPL.