Erica Synths Bullfrog Sampler/Looper Voice Card 1979 Roland TR drum machines have

Roland TR drum machines have impacted music for over 40 years—and they're as influential now as ever

and the unique filter behavior of both

The nature of Karplus-Strong synthesis means that you won’t need to dedicate VCAs or amplifier envelopes to SuperKar+

we discovered the waveshaper’s unique potential for stereo processing

These powerful

Erica Synths Bullfrog Sampler/Looper Voice Card 1979 Roland TR drum machines haveVoice cards expand the functionality of the Bullfrog and make it even more versatile. Some voice cards replace patch cables they connect the "modules* of the Bullfrog internally, while others have built in mixers, signal generators, and advanced electrical circuits to control the synthesizer, for example, the Sequencer sends CV to control pitch and gate to start events on the synthesizer and the Sampler Looper emulates reel to reel tape recorder