Profile: Aphex Systems Ltd. is a provider of microphone preamplifier products. Our model 230 is a analog voice processing channel with built-in digital outputs and it also offers a post-compressor send & return for inserting additional processing into the chain. Our headphones feature individual volume controls, works from any analog source and four independent stereo power amplifiers. Our model 120 is a audio distribution amplifier with a single impedance input and four impedance outputs & all are electronically servo-balanced.