Metal casing, voltage-controlled oscillators (VCO), voltage-controlled filters (VCF), Vactrol filters, morphing filters, wasp filters, Parker/Steiner filters, multiple resonance filters, 15-section filter bank, 48dB lopass), voltage-controlled amplifiers (VCA), envelope generators (ADSR, AD, AR, multistage ADADADAD generator), modulation oscillators, ring modulator, noise generator, sequencer, Vocoder, spring reverberator, phaser, voltage-controlled Bucket Brigade Device, sampler, digital noise generator, envelope follower, waveform multiplier, sources of uncertainty, sample&hold/track&hold, slew limiter, analog shift register, quantizer, voltage-controlled switches, voltage controlled frequency divider, phase locked loop/PLL, Maximum/Minimum detector, trigger delay, ribbon play manual, Theremin controller, joy-stick midi-interface
The A-100 is an analog modular system with over 100 different possible modules developed between 1995 and 2008. It is an open system with modules that can be used in any combination. All known standard synthesizer modules are available.