Kenwood CM-7ES (1990)
The Kenwood CM-7ES is a compact 2-way, bass reflex bookshelf speaker. It came out in 1990 at ¥23,000 for a pair in Japan. Documentation is thin - there are no formal period reviews in the archive - but the design details and a few owner listings show a small, well-engineered speaker meant for flexible placement.
The woofer is a 10 cm cone type with a carbon-fiber diaphragm (cross-woven long fibers in a special resin), chosen for high rigidity and good propagation characteristics. The cabinet is made of a special polypropylene. The speaker also has a magnetic protection design (per EIAJ), so it can sit near a TV or monitor. Frequency response is rated 70 Hz - 25 kHz, impedance 8Ω, max input 70W (105W instantaneous), output sound pressure level 89 dB/W/m, crossover at 5 kHz. Dimensions are 230 × 150 × 166 mm (W×H×D), weight 2.2 kg. Kenwood sold the SR-CM7 speaker stands (¥9,800) and SR-MA7 wall-mount adapters (¥12,000) separately.
What little owner feedback exists is positive. A StereoNET seller described them as "good for front or surround," and an eBay UK listing praised their build and sound quality, noting they were "tested both with music and a full test tone sweep." One Yahoo! Flea Market listing shows a pair custom-painted to resemble Tachikoma from *Ghost in the Shell*.
Known specs:
- 2-way, 2-speaker, bass reflex, bookshelf type
- 70 Hz–25 kHz frequency response
- 70W max input (105W instantaneous)
- 8Ω impedance, 89 dB/W/m sensitivity
- 230 × 150 × 166 mm, 2.2 kg
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