Altec Lansing 806-8A (1973)
A high-efficiency driver unit designed for professional and high-fidelity audio systems, released in 1973.
Overview
The Altec Lansing 806-8A is a driver unit manufactured by Altec Lansing and released in 1973. It was used in the A7-8 and later versions of the Valencia speaker systems. Designed for high-performance audio applications, it features an aluminum alloy diaphragm and a precision-processed double slit structure to enhance output accuracy and efficiency.
Specifications
| Frequency characteristic | 500 Hz to 20 kHz |
| Allowable input | 30W |
| Impedance | 8 Ω |
| Output sound pressure level | 107dB/W/m |
| Output sound pressure level | 108 dB (new JIS, 1977 catalog) |
| Magnetic flux density | 13,000 gauss |
| Crossover frequency | 500 Hz or more |
| Throat diameter | 25mm |
| Voice Coil Diameter | 45mm |
| Applicable Horn | 511B, 811B |
| Adaptive network | N501-8A, N801-8A |
| External dimensions (1974 catalog) | Diameter 114x depth 83 mm |
| External dimensions (1976 catalog) | Diameter 114x depth 71 mm |
| Weight | 2.6kg |
| Original price | ¥ 45,000 (1 unit, around 1976) |
Design
The 806-8A features a magnetic circuit design distinct from the 802-8D. High performance is achieved through an equalizer with an aluminum alloy diaphragm and a special double slit structure fabricated with precision processing.
Context
This driver unit was used in the A7-8 and later models of the Valencia speaker system, positioning it within Altec Lansing’s professional and high-fidelity audio offerings of the 1970s.
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