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General| Impedance | 8 Ohms |
|---|---|
| Driver Size | 12 inches |
| Woofer Size | 12 inches |
| Frame Material | Stamped Steel |
| Surround Material | Cloth |
| Cone Material | Pulp |
Highlights true coaxial mounting of reproducing elements for smooth room coverage.
Features augmented balanced bass response and smooth extended high-frequency reproduction.
Details the Radax design with an acoustical crossover, low distortion, and voice coil coupling.
Notes edgewise wound aluminum voice coil for efficiency and a heavy magnet structure.
Details frequency response range and RETMA sensitivity ratings for SP12 and SP12B.
Specifies power handling capacity (program/peak) and critical damping factors.
Lists impedance, mechanical crossover frequency, voice coil diameter, and physical size.
Covers mounting details, baffle opening size, net weight, and shipping weight.
Provides guidance on enclosure types (Aristocrat, infinite baffle, ported) for optimum bass response.
Advises using sound absorbent material on interior cavity sides to prevent ragged response.
Details how to cut the baffle opening and securely mount the speaker using screws or bolts.
Instructions for connecting the speaker to amplifier 16-ohm and Common terminals.
Guidance on setting the amplifier's variable damping control based on specifications.
Information on integrating speakers into multi-way systems using E-V's Building-Block Method.
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