Modulus L1

About the Modulus L1

The Audible Illusions Modulus L1 is a line stage and headphone amplifier introduced around 1996, combining advanced sonics and impeccable build quality. It features a hybrid design with two E88CC tubes for the preamplifier stage and a discrete solid-state headphone amplifier capable of 7 to 10 watts output, using dual monolithic FETs and ultra-fast ring-emitter transistors. The L1 is designed to drive sophisticated headphones and rival the sound quality of the best amplifier/speaker combinations. It has a frequency response from 2Hz to 100kHz, total harmonic distortion of 0.12%, and a signal-to-noise ratio of 85dB on the line stage. The unit includes a separate power supply and multiple selectable inputs and outputs. It is highly regarded for its detailed, natural sound with swift transients and minimal distortion, making it a classic reference preamplifier in the audiophile community. The L1 is noted for its excellent build quality and remains sought after in the used market.