Altec Lansing 802-8D (1973)

At 3.2kg, it’s a dense little powerhouse—this driver was built to drive horns with authority, not sit on a shelf.

Overview

The Altec Lansing 802-8D isn’t something you casually plug in and forget. It’s a compression driver—the kind of component that demands respect, a proper horn, and a system built around it, not the other way around. Released in 1973, it was engineered for high-efficiency sound reproduction in professional and high-end audiophile applications, where raw output and clarity under load mattered more than convenience. Despite being produced during a period of transition in audio technology—the 1950s through the 1970s—the 802-8D arrived late in that run with a design that still leaned on proven, robust principles rather than chasing new trends. It wasn’t a full-range speaker, nor was it meant to be. This was the engine for a horn-loaded system, intended to be paired with drivers like the 515C or 416-8B to form a complete two-way setup.

Owners report it was used in systems like the A7 500 8, and its compatibility with horns such as the 511B and 811B made it a flexible choice for custom installations. The original price of ¥56,500 (around 1976) suggests it was a premium component even at the time—expensive enough to be taken seriously, but not so rare as to be mythical. Still, today, it’s a different story. The 802-8D has slipped into near-legendary status among vintage driver collectors, not because it was widely celebrated in its day, but because surviving units in good condition are increasingly hard to find.

Specifications

Key Features

Aluminum Alloy Diaphragm

The use of an aluminum alloy diaphragm was a deliberate choice for rigidity and light weight—two qualities essential for maintaining transient response at high frequencies. Unlike softer materials that can flex or distort under high acoustic pressure, aluminum holds its shape, allowing the 802-8D to handle its 30W allowable input without collapsing into mush. This wasn’t exotic for the era, but it was effective, and when paired with proper horn loading, it delivered a crisp, articulate top end that could cut through live sound environments or fill a large listening space with minimal amplification.

Special Double Slit Structure with Precision Processing

Altec didn’t just slap a diaphragm onto a magnet and call it a day. The “special double slit structure” refers to a carefully engineered venting or damping system within the driver’s motor assembly—likely designed to control back-pressure and reduce standing waves that could interfere with voice coil movement. Precision processing implies tight manufacturing tolerances, which mattered in a compression driver where even minor inconsistencies could lead to distortion or uneven frequency response. This wasn’t a consumer-grade part; it was built like a tool.

Tangerine Phase Plug with Radial Annular Slits

The Tangerine phase plug is one of the most distinctive features of the 802-8D. Its name comes from the segmented, citrus-like appearance of the slits that radiate outward from the center. These radial annular slits help manage the dispersion of sound waves as they exit the compression chamber, reducing phase cancellation and improving high-frequency extension and coherence. It’s a design Altec refined over years, and in the 802-8D, it contributes directly to the driver’s ability to reach 20 kHz with authority. Phase plugs like this weren’t just about efficiency—they were about control.

Broadband Playback with 511B and 811B Horns

While the 802-8D is rated from 500 Hz upward, its real performance shines when mated to the right horn. The 511B and 811B horns aren’t optional accessories—they’re integral to the system’s design. These horns extend directivity control and sensitivity, allowing the driver to achieve its full 110 dB output sound pressure level. Broadband playback wasn’t a claim made lightly; it meant the driver could maintain consistent dispersion and low distortion across its range, a critical factor in both studio monitoring and high-fidelity reproduction. The adaptive networks N501-8A and N801-8A were likely used to fine-tune the crossover behavior when integrated into a full system.

Collectibility & Value

The Altec Lansing 802-8D is described as “Super Rare” in multiple listings, and current market prices back that up. Individual units have sold for $400, while complete setups—driver and horn pairs—have fetched as much as $4,000. In Japan, listings on Yahoo Auctions show prices ranging from ¥133,100 to ¥170,000, indicating strong domestic demand. Despite this, there’s little documentation on common failures or maintenance, which makes restoration a gamble. One forum user reported a “very bad experience” with aftermarket diaphragms from Great Planes Audio, suggesting that replacement parts may not meet original specs. Another noted experimentation with internal damping on a similar 802D unit, hinting that tweaking these drivers is common among enthusiasts—but success isn’t guaranteed. There’s no official data on spare parts availability, so owners are often left to scavenge or restore in place.

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