Four Amphones models are available. “AC30” reproduces the sound of the classic VOX AC30 amplifier. “Twin” simulates the sound of a famous US-made clean combo amp. “Lead” covers lead guitar sounds ranging from UK-made amps to US-made high-gain boutique amps. “Bass” models VOX’s classic AC100 bass amp with a wide-range design to accommodate a variety of tonal possibilities. The AC30, Twin, and Lead versions offer reverb/chorus & delay, while the Bass version provides a compressor. Each model uses a completely analog design to model the circuit response of the original amp.