Technics SB-E100 (c. 1978)
The Technics SB-E100 is a floor-standing, three-way, three-driver bass-reflex speaker from Technics' E-Series. Its original Japanese price was ¥80,000 per unit, around 1978. Nearly everything documented comes from a single Japanese database entry, so the record is thinner than it looks. What's there is specific.
Technics stated the SB-E100 was developed using the technical know-how of the SB-10000 flagship. The drivers are a 30cm cone woofer, a horn-loaded midrange with a 35φ aluminum diaphragm, and a horn-loaded tweeter with a metallized polyester film diaphragm. Both horns are aluminum die-cast radial types with a 150° opening, damped with natural rubber sheeting to suppress horn resonance. The crossover sits at 1.5kHz and 6.5kHz and is described as a linear-phase network. Midrange and tweeter levels are continuously variable, and thermal relays protect both drivers. A centralized control tower mounted behind the horns gathers the crossover, attenuator, protection circuit, input terminals, and multi-amplifier terminals into a single chassis. That was a notably modular arrangement for the period.
Known specs: 37Hz–22kHz (-10dB), 6Ω impedance, 95dB/W/m sensitivity, 150W music / 100W DIN power handling, 525 × 846 × 424mm, 29kg, rosewood-grain finish.
Owner accounts add a couple of details. One long-time searcher reported that dark-finish examples were made in Japan and sold in Europe, while lighter-finish versions were built for the Japanese market. He also said it took him ten years to find two pairs, in Germany. A classifieds listing describes original drivers, soft surrounds, and sound the seller called "clean" and playing "at a decent level" for its age. No reviews, confirmed production years, or current market pricing have surfaced.
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