JBL MR818
Documentation on the JBL MR818 is thin, and what survives comes from a single source. The record shows a 2-way bass-reflex loudspeaker, sometimes referred to under the "Audiolab" banner, built around a 380mm (15 in.) woofer paired with a 25mm (1 in.) titanium dome tweeter, crossing over at 2.5kHz. JBL rated it at 150W continuous program power with a sensitivity of 103dB @ 1W/1m and a nominal impedance of 8Ω. Frequency response is listed as 45Hz–20kHz (±3dB).
That's essentially the whole picture. No production years, original price, dimensions, or weight have surfaced. No enclosure volume, port tuning details, or comparisons to other MR-series models are documented. The sensitivity figure suggests a high-efficiency design in the JBL professional mold, and contemporary coverage in EQ magazine (March 1997, p.105) places the MR818 in the company's professional monitoring context, though the mention is brief.
Period trade coverage of the MR818 is minimal. EQ magazine (April 1992, p.62) ran the MR818 in a product roundup alongside other JBL professional gear of the era, listing it among the company's constant-directivity offerings, with the roundup noting a 12-inch two-way model and a dual-channel power amplifier with 175W at 8 ohms in the same spread — but the entry is a brief listing rather than a full review, and no further commentary on its sound or performance has been located.
Known specifications:
- Type: 2-way bass-reflex loudspeaker
- Woofer: 380mm (15 in.)
- Tweeter: 25mm (1 in.) titanium dome
- Crossover: 2.5kHz
- Frequency response: 45Hz–20kHz (±3dB)
- Power capacity: 150W continuous program
- Sensitivity: 103dB @ 1W/1m
- Nominal impedance: 8Ω
For collectors, the MR818 remains a largely undocumented chapter in JBL's professional lineup. If you own one, the dimensions, weight, and any markings would be a genuine contribution to the record.
Similar items on eBay
No exact JBL MR818 listings are live right now — these searches show current JBL and similar vintage audio gear on eBay:
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Related Models
- JBL 075
- JBL 077
- JBL 120Ti
- JBL 124A
- JBL 124H
- Braun AUDIO-1 (1965)
- Braun AUDIO-250 (1965)
- Magnavox Component Systems (1972)
- Acoustic Research AR (1967-1976)
- Acoustic Research 11