Altec Lansing 1003B
A multi-seller horn loudspeaker designed for theater, hall, and outdoor sound reinforcement
Overview
The Altec Lansing 1003B is a large-format multi-seller horn loudspeaker built for professional audio applications. Manufactured by Altec Lansing, it was intended for use in theaters, concert halls, and outdoor sound systems where wide coverage and high efficiency are critical. The 1003B supports either single or dual driver configurations by changing the throat assembly, allowing flexibility in system design. Part of a six-model series, it offers selectable diffusion characteristics to suit different acoustic environments.
Specifications
| Type | Multi-seller horn |
| Directional property | Horizontal: 90°, Vertical: 35 degrees |
| Crossover frequency | 300Hz |
| Throat diameter | 36mm |
| Cell Configuration | 2x5 |
| Applicable throat | 30210 (1 Screwdriver), 30170 (2 Drivers) |
| External dimensions | Width 965 x Height 409 x Depth 648 mm |
| Weight | 14.5kg |
Design
The 1003B was engineered for professional sound reinforcement in large venues, featuring a modular throat system that allows installation of one or two driver units depending on output needs. Its horn design supports horizontal 90° and vertical 35° dispersion, and it belongs to a series of six multi-seller horns offering varied diffusion patterns for different applications.
Market
The Altec Lansing 1003B was priced at ¥159,600 around 1976, increasing to ¥165,000 by 1977.
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