Altec Lansing DS912-8A
A high-sensitivity, bass-reflex, coaxial speaker system designed for wide-dispersion sound in professional and installed audio applications.
Overview
The Altec Lansing DS912-8A is a free-standing, 2-way, 1-speaker bass-reflex system built around a coaxial driver configuration for consistent off-axis response. It features a 30 cm cone low-frequency driver paired with a 3.8 cm dome high-frequency driver in a single coaxial unit (CD912-8B), engineered to deliver high output with broad coverage. Designed for flexibility, the enclosure supports flying via twelve embedded 3/8-inch nuts and is constructed from 13-ply poplar plywood for durability.
Specifications
| Unit type | 30 cm coaxial 2-way speaker |
| Low-frequency driver | 30 cm cone type |
| High-frequency driver | 3.8 cm dome type |
| Frequency Response | 80 Hz to 15 kHz ± 3 dB |
| Sensitivity | 100dB SPL |
| Power handling | 125W continuous; 500W peak |
| Maximum Output (1m) | 121dB SPL continuous; 127dB SPL peak |
| Dispersion | 90 ° (horizontal) x 90 ° (vertical) |
| Impedance | 8 Ω |
| Crossover frequency | 2.2kHz |
| Input connector | 1x4 position barrier strip; 2xNL4 |
| Enclosure material | 18mm, 13 ply Poplar Plywood |
| Enclosure finish | Charcoal Grey or White Catalyzed Polyurethane |
| External dimensions | Width 476 x Height 559 x Depth 349 mm |
| Back Width | 184 mm |
| Weight | 20.2kg |
Design
The DS912-8A uses a five-sided enclosure designed for versatile placement and mounting, with a coaxial driver layout that aligns the high-frequency dome and low-frequency cone acoustically for coherent wavefronts. The tweeter's 90° x 90° dispersion pattern ensures even coverage across wide listening areas. The cabinet is built from 13-ply poplar plywood and finished in charcoal grey or white catalyzed polyurethane, with twelve embedded 3/8-inch nuts allowing secure flying.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.