Two LFOs and a unique sample-and-hold section provided capabilities not found in competing self-contained synthesizers of the time. The SH-3A was Roland's first non-preset based synth.
Roland's SH-3A featured two Low Frequency Oscillators (LFOs) and an innovative sample-and-hold section, setting it apart from other self-contained synthesizers of its era. This model marked the beginning of Roland's foray into non-preset based synthesis.