JBL Everest DD55000 (Mid-1980s)
JBL introduced the Everest DD55000 in the mid-1980s as the company's flagship loudspeaker. It sat above the L-series and the 4300-series studio monitors. It was one of the largest and most expensive speakers JBL had built up to that point, and it was designed to compete with the finest loudspeakers in the world at the time, including models from Wilson Audio and Infinity. The Everest series was JBL's top-of-the-line range, and the DD55000 was the top of that.
The Everest is a floor-standing bass-reflex speaker. It has a 15-inch low-frequency driver, a compression driver for the midrange, and a horn-loaded tweeter - the horns use the same constant-directivity (CD) design JBL used in its professional work. The cabinet is heavily braced and finished in black walnut veneer. One of its more distinctive features is a pair of midrange and high-frequency level controls on the speaker, so the owner can tune the output to the room. The DD55000 also supports bi-amplification. You can bypass the passive crossover and drive the lows and highs with separate amplifiers. HiFI-Stereo (1988, p.152) describes a related JBL electronic crossover designed to match the characteristics of JBL B380 and 13460 subwoofers. That capability led directly to the JBL PX-1, a two-way electronic crossover designed by Greg Timbers and Marshall Buck, sold separately for dedicated bi-amp setups. Both the Everest and the PX-1 were used with JBL's 18-inch subwoofers in the studio monitoring room of JBL's president at the time.
The design was derived from the Everest, which JBL had positioned as its flagship in the early 1980s. Sources differ slightly on the exact introduction timeline, and both "mid-1980s" and "early 1980s" appear in the record. The horn-loaded configuration was chosen specifically to avoid diffraction problems in the upper frequencies. The crossover network was built with the same premium components used in JBL's studio monitors of that era.
A French-language source lists the documented specifications of the Everest as follows:
- Type: floor-standing bass-reflex (colonne bass-reflex)
- Sensitivity: 93 dB/m/W
- Nominal impedance: 6 ohms
- Frequency response: 40 Hz – 20 kHz
- Power handling: 100 W
- Dimensions (H x W x D): 59.5–60 x 55 x 56–57.5 cm
- Weight: 44.5 kg
- Indicative price (1987): 19,000 francs
Owners are mixed on it, but mostly reverent. Some report that the bass is not as deep or defined as the best modern speakers. Others describe the sound as "effortless" and "dynamic." A period review paraphrase notes that imaging is not as pinpoint as some modern mini-monitors, but the sense of scale and authority is hard to replicate. The speaker rewards careful setup and high-quality amplification, and many audiophiles still consider it a reference-grade loudspeaker. Its combination of dynamic range, low distortion, and high sensitivity makes it a favorite for jazz and classical playback.
The DD55000 is now rare and collectible. A good pair in original condition typically goes for $3,000 to $7,000 in today's market, though one pair was listed in Germany at €8,900. Buyers should know the usual vintage-JBL problems. The foam surrounds on the woofers dry out and disintegrate over time. The original midrange and tweeter diaphragms are no longer available from JBL, though aftermarket replacements exist. Most of the original crossover capacitors are considered beyond their useful life and should be replaced. The level controls should be cleaned and lubricated periodically. None of this is unmanageable, but none of it is trivial either.
Similar items on eBay
No exact JBL EVEREST DD55000 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