Crown ES-212 (c. 1976–1977)
Not much is documented about the Crown ES-212. The period record shows an electrostatic speaker system, also listed as the Crown Auralinear ES-212 in the High-Fidelity 1976 Equipment Directory (p.87). It was rated at 25 - 22,000 Hz and could handle 125 watts of continuous music power. Nominal impedance was 4 - 6 ohms. It had midrange and tweeter level controls and a resettable protection circuit.
Beyond those two directory entries, almost nothing survives. No original price, dimensions, weight or production run details have turned up. If you own a pair or have a service manual, the archive would welcome the details.
- Type: Electrostatic speaker system
- Midrange: 5″ driver in acoustically isolated enclosure
- Tweeter: 1″ Mylar dome
- Superhorn: Piezoelectric solid-state
- Frequency response: 25–22,000 Hz
- Power handling: 125 W continuous music
- Impedance: 4–6 ohms
- Controls: Midrange and tweeter level; resettable protection
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