L3B Line Stage Preamplifier – Legendary Tube Sound. Modern Control. Rediscover the art of high-fidelity listening with the L3B Line Stage Preamplifier — the next evolution of the renowned Modulus series. Designed for audiophiles who demand uncompromising performance, the L3B combines pure tube audio with modern digital and home theater integration. Pure Class A Tube Performance Built on the time-tested “simpler is better” design philosophy, the L3B features: Zero feedback, single-ended Class A architecture Teflon coupling capacitors for exceptional signal purity Relay-based signal switching for noise-free operation The result is outstanding resolution, warmth, and musical realism. Engineered for Today’s Sources From CD players to digital streamers and surround sound processors, the L3B is ready: Inputs for CD, DVD, Tuner, External Phono Stage, Video, Aux, and Tape Dedicated external power supply eliminates AC interference. Active buffer circuitry ensures perfect impedance matching. Total Control at Your Fingertips Master stereo volume with precision stepped attenuators. Balance, mute, and source selection from the front panel or the remote Seamless switching for stereo and surround sound systems Custom Installation Ready Optional rack mount faceplates are available by special order Built to be the centerpiece of high-end two-channel or home theater systems Why Choose the L3B? Proven Modulus lineage Tube warmth meets digital clarity. Built to last, built to inspire