JBL TM530 (c. 1990)
The JBL TM530 is a 3-way in-vehicle speaker unit from around 1990. It's a car audio model that survives mainly through scattered period listings and the occasional second-hand sale. Documentation is thin, but what the record shows is consistent: a 130mm (roughly 5.25") driver with a 4Ω impedance, frequency response rated from 60 Hz to 22 kHz, 60W allowable input, and 90dB output sound pressure level. The original price was ¥46,000 for one unit.
JBL's own spec sheet calls it a "3-way onboard speaker system" with a low-distortion SFG magnetic circuit and an edge-wise wound voice coil. The low range uses a polypropylene cone. The high range gets a pure titanium diaphragm. That pairing fits JBL's late-80s/early-90s engineering approach. No crossover frequency, dimensions, or weight are documented.
The TM530 shows up in period listings as "Rare 1990's JBL TM530 Automotive Three Way Speakers," and used examples have surfaced in Portugal at prices around €45-€90. One listing labels them "JBL TM530 120W," which conflicts with the 60W figure from the spec sheet. The manufacturer's rating is the safer number, though neither source says whether it's RMS or peak. A multi-part YouTube refoaming video ("Refoam JBL TM 530!") suggests foam surround deterioration is the known failure mode, which fits the era and driver construction. No period reviews or owner commentary beyond video titles have surfaced.
- Type: 3-way in-vehicle speaker unit
- Impedance: 4 Ω
- Frequency response: 60 Hz – 22 kHz
- Allowable input: 60W
- Output SPL: 90 dB
- Aperture: 130mm
- Original price: ¥46,000 (1 unit, c. 1990)
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