Technics EAB-1204 (1965–1971)
Documentation on the Technics EAB-1204 is thin. This page is built from two online database entries and little else. The sources agree on the basics: the EAB-1204 is a small 2-way, airtight (closed), bookshelf speaker, built under the Technics brand by Matsushita Electric Industrial Co. It was sold under two designations, EAB-1204 and SB-1204, and the Audio Database titles it "Technics 1". The Russian source dates production to 1965-1971. The Japanese site's price references bracket that same span, at ¥18,000 per unit around 1966 and ¥20,000 per unit around 1971.
The design is a straightforward two-way. The low end is a 12 cm cone woofer, the EAS-12PL50, chosen to work well in a small cabinet. It has a UL edge to keep midrange distortion low, and a large-magnet, low-loss sealed yoke for efficiency and low-frequency damping. High frequencies come from a horn tweeter with a lightweight polyester film diaphragm. The enclosure is airtight, and the joints between baffle and back plate are packed to prevent air leaks. Rated specs: 40 Hz to 20 kHz, 8 Ω, 87 dB/W/m sensitivity, 12 W allowable input, crossover at 3.5 kHz, 164 × 297 × 210 mm, 4.4 kg.
Beyond that, the record is quiet. No period magazine reviews have surfaced, there's no documented collector market data, and no known service issues or spare-parts guidance. It appears to have been a small, carefully built speaker from the mid-1960s.
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