Altec Lansing 803B (1964)

At 17.5 pounds, it carries the weight of studio history in cast aluminum and Alnico

Overview

The Altec Lansing 803B isn't a complete speaker system or a horn—it's a 15-inch low frequency loudspeaker, a professional-grade woofer built for broadcast, recording, and high-fidelity applications where bass accuracy and durability mattered. Though sometimes confused with horn-loaded systems due to Altec’s multi-seller lineage, the 803B stands as a standalone driver, designed to anchor serious enclosures. A date code from the first quarter of 1964 found on a unit frame offers a rare anchor point in its production timeline, placing it firmly in the mid-20th century’s golden era of analog audio engineering. It was marketed as a component for the finest studio monitors, chosen not for flash but for its ability to deliver controlled, articulate low end under demanding conditions.

This is no consumer-grade relic. The 803B was built to military-grade tolerances, with a 2-inch edgewound aluminum ribbon voice coil and a massive 5.5-pound Alnico V magnet producing a flux density of 14,000 gauss—figures that still impress by modern standards. That magnet and the driver’s overall heft (17.5 pounds) speak to an era when permanence was part of the design brief. It’s a transitional piece, as some collectors note, bridging the rugged cinema sound systems of the 1950s with the more refined broadcast monitors of the 1960s and 70s. The cone’s half-roll outer suspension and progressive-roll centering suspension were engineered for long excursion and consistent linearity, critical when monitoring live mixes or mastering tape.

Despite its professional pedigree, the 803B never became obsolete in the eyes of purists. It’s been paired with various high-frequency horns and crossover networks, including the N800D, and enthusiasts report using it in custom enclosures around the recommended 4.5 cubic feet volume. Its frequency response of 20–1,600 Hz covers nearly the entire bass and lower midrange spectrum, and with a sensitivity of 99dB at 4 feet on axis with 1 watt of pink noise, it’s efficient enough to respond dynamically to tube amplifiers and low-output sources. The 16-ohm nominal impedance and 5.5-ohm DC resistance suggest it was designed for stable, high-headroom operation in professional racks, not just home listening.

Specifications

Key Features

2-Inch Edgewound Aluminum Ribbon Voice Coil

The 803B’s 2-inch edgewound aluminum ribbon voice coil is a standout feature, both technically and sonically. Unlike round-wire coils, the edgewound design packs more conductor into the magnetic gap, improving efficiency and thermal capacity. Aluminum was chosen to reduce mass, allowing faster transient response, though it required careful engineering to manage heat dissipation. At 30 watts continuous, the coil could handle serious program material without fatigue, a necessity in broadcast environments where systems ran for hours. However, owners report that the voice coils are delicate—modern reconing services often replace them with updated materials, as original units are prone to damage from overexcursion or age.

Half-Roll Outer Suspension with Progressive-Roll Centering

The cone suspension system combines a half-roll outer surround with a progressive-roll centering spider, a design aimed at balancing excursion and control. The half-roll outer suspension allows for greater linear movement than a full-roll, while the progressive-roll spider increases restoring force as the cone moves off-center, reducing distortion at high volumes. This dual-suspension approach was part of Altec’s effort to push the limits of cone linearity in large-format drivers. The result is a woofer that can handle deep bass without bottoming out, though long-term reliability depends heavily on the condition of the foam and rubber components, which degrade over decades.

Alnico V Magnet Producing 14,000 Gauss

The 5.5-pound Alnico V magnet generates a flux density of 14,000 gauss, a figure that rivals or exceeds many modern drivers. This strong, stable magnetic field ensures high motor strength (Bl), translating to tight bass control and excellent damping. Alnico’s natural warmth also contributes to the 803B’s reputation for a smooth, organic low end—less clinical than ferrite, more dynamic than ceramic magnets. But Alnico is brittle and sensitive to demagnetization from physical shock or improper handling, a known risk for vintage units. Re-magnetizing a weakened Alnico V structure requires specialized equipment, making original, well-preserved magnets highly valued.

Professional-Grade Build for Studio and Broadcast Use

The 803B was never intended for mass-market consoles or home stereos. It was built for environments where failure wasn’t an option—recording studios, radio stations, and mobile broadcast units. Its construction reflects that: a heavy-duty cast aluminum frame, precision-aligned gap, and military-spec materials throughout. The 16-ohm impedance suggests it was designed to work in multi-driver arrays or with constant-voltage systems, common in commercial installations. Collectors note that finding original, unmodified units is difficult, as many were reconed, repurposed, or cannibalized over the years.

Collectibility & Value

The Altec 803B holds a collectibility rating of 7 out of 10. It’s not as rare as the 604 or 605 series, but its role in professional audio history and its compatibility with high-end vintage systems keep demand steady among restorers and DIY builders. Original units are hard to find in working condition—the foam suspensions deteriorated decades ago, and the delicate voice coils are easily damaged. Many surviving examples have been reconed using modern replacements like the 035400 cone kits, which restore functionality but reduce originality. The original price was ¥157,000 per unit around 1977, a significant sum at the time, reflecting its professional status. Current market prices are not documented, but functional, reconed units regularly trade among niche audio communities.

eBay Listings

Altec Lansing 803B 16 ohm Woofer - Voice of the Theater VOTT

$1,500

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