Multi-effects units typically have a range of distortion, chorus, flanger, phaser and reverb effects. They utilized VanGaalen's guitars for added distortion and reverb. Often the signal is modified using electronic effects such as reverb and distortion. "Checkmate 100" featuring dual channels, reverb and tremolo effects. Felder uses Fender Deluxe Reverb and Tweed Deluxe amplifiers modified by Dumble Amplifiers. The song is known for its use of the gated reverb drum sound. Cobain used his Fender Jaguar guitar plugged into a Twin Reverb amp. His amplifier was a Fender Twin Reverb. Tape effects were limited to slapback echo and reverb. His amplifiers were the Fender Super Reverb and a Twin Reverb. The Who song "Pinball Wizard" on his electric guitar with a Fender Twin Reverb amp. He further treated the sounds with a spatializing reverb effect. One of his amplifiers of choice was a 1965 Fender Twin Reverb. Fender released the Fender Tone Master Twin Reverb in September 2019. Each device has a filter and tone controls along with built-in reverb and delay effects.