Custom BNC FMOD ™ passive Inline Filters & Attenuators

Harrison Labs FMODs are high-performance, passive electronic crossovers and attenuators engineered and meticulously manufactured in the U.S.A. Available in High Pass (Red Label), Low Pass (Black Label), and Attenuator configurations. These “active simulators” function as inline BNC filters that provide the precision of an electronic crossover without the need for power, grounding, or remote wires. By processing the signal at the pre-amp level before it reaches the amplifier, they eliminate the noise, distortion, and “turn-on thumps” often associated with active equipment, all while utilizing a rugged die-cast aluminum Pomona enclosure with nickel-plated brass male and female BNC connectors to ensure a laboratory-grade signal path.