Cossovers, Attenuators, & Filters

Harrison Labs: Passive Crossovers, Attenuators & Filters

Precision Signal Solutions

FMOD & PFMOD Crossovers & XLR Filters: Legendary passive solutions providing clean 12dB/octave frequency filtering for subwoofers and tweeters. Available in fixed and adjustable RCA formats, as well as our heavy-duty Custom Cylindrical XLR formats engineered for professional balanced mono line filtering.

RCA Attenuators & X-Connect: The industry standard for precision gain matching and hiss reduction. Lower your noise floor without sacrificing signal integrity.

FMOD Filter Cables: High-fidelity RCA leads with integrated filters for a simple, plug-and-play installation.

Professional Build: Hand-built in the USA with your choice of gold-plated or nickel-plated connectors for maximum durability.