JBL 5235 Electronic Crossover

Documentation on the JBL 5235 is thin. What the record shows: it was a professional-grade analog electronic crossover, designed to split a full-range line-level signal into low-frequency and high-frequency bands for bi-amplified loudspeaker setups. The unit's frequency response is specified as 22Hz–42kHz, with separate LF and HF outputs. It was built for the professional market, not the home consumer line — a tool for system engineers rather than a lifestyle component.

Beyond its basic function, the historical record is largely silent. No production years, original price, dimensions, or crossover frequency range are documented in available sources. That is the extent of the period press coverage found.

The model designation is a wrinkle. Sources conflict on whether the 5235 is a mono or stereo unit. One equipment listing describes it as a "2-Way Mono Electronic Crossover," while a separate used listing for the "5235A" calls it a "STEREO ELECTRONIC CROSSOVER." The 5235A appears to be a variant, but no source explains the difference between the two. With the designations in conflict, the channel configuration is best treated as unresolved.

Known specs, such as they are:

Type: Analog electronic crossover (2-way)
Frequency response: 22Hz–42kHz
Input: Line level
Outputs: LF and HF (independent)
Variant: 5235A, difference undocumented

If you have one of these in a rack, you're holding a piece of JBL's professional infrastructure — the kind of unit that made multi-amped systems work before DSP took over. Beyond that, the archive's record on the 5235 is admittedly sparse.