Altec Lansing 802-8D (1973)
A high-sensitivity compression driver designed for professional and high-fidelity audio systems, released in 1973.
Overview
The Altec Lansing 802-8D is a wide-range compression driver produced starting in 1973. It was designed for use in high-performance speaker systems, offering high sensitivity and extended high-frequency response. This unit was part of Altec Lansing's professional audio lineup and was used in systems such as the A7 500-8. It can be configured into a 2-way system when paired with compatible woofers like the 515C and 416-8B. Despite its professional pedigree, it was not used in the consumer-focused Valencia series, which instead featured the 806 driver.
Specifications
| Frequency response | 500 Hz to 20 kHz |
| Power handling | 30W |
| Impedance | 8 Ω |
| Sensitivity | 110 dB (new JIS, 1977 catalog) |
| Magnetic flux density | 15,250 gauss |
| Recommended crossover frequency | 500 Hz or more |
| Throat diameter | 25mm |
| Voice Coil Diameter | 45mm |
| Applicable Horns | 511B, 811B |
| Adaptive networks | N501-8A, N801-8A |
| External dimensions | Diameter 114 x depth 94 mm |
| Weight | 3.2kg |
Design
The 802-8D features an aluminum alloy diaphragm and a Tangerine phase plug with radial annular slits designed to enhance high-frequency performance. It incorporates a special double slit structure achieved through precision processing, contributing to its wide-range response. The driver is engineered for high magnetic efficiency with a flux density of 15,250 gauss.
Context
The 802-8D served as a driver unit in professional systems like the A7 500-8. While compatible with various woofers for 2-way configurations, it was not used in the consumer-oriented Altec Lansing Valencia series, which utilized the 806 driver instead.
Market
The Altec Lansing 802-8D is described as "Super Rare," indicating its limited availability and potential collectibility among vintage audio enthusiasts.
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