Altec Lansing 416-8B (1975)

At 17.5 pounds, it hangs in your hands like a foundry casting — dense, deliberate, built for war.

Overview

The Altec Lansing 416-8B is a 16" low-frequency loudspeaker of professional quality, introduced in 1975 as part of Altec’s push into high-power, high-fidelity woofers for both sound reinforcement and critical listening applications. While visually imposing and mechanically robust, it wasn’t designed to stand alone — this driver demands a horn-loaded midrange or compression driver to complete a full-range system. Originally intended for use in the Altec A7 system and later found in consumer products like the Valencia speaker line, the 416-8B occupies a niche where brute force meets precision engineering. At 17.5 pounds, its heft comes from a massive 4.5 kg Alnico V magnet and a rigid die-cast frame, both signaling intent: this is not a domestic curiosity, but a component built to endure touring rigs and studio monitoring duty.

Owners report that despite its age, the 416-8B remains a sought-after unit among DIY audio builders and vintage PA restorers. Its frequency response of 25 Hz to 1,600 Hz allows it to anchor systems without requiring a separate subwoofer in many enclosures, and the 102 dB sensitivity (New JIS) ensures high output with moderate amplifier drive. The use of an edge-wound copper ribbon voice coil — a rare and costly construction method — contributes to its ability to handle thermal stress and deliver tight transient response under load. However, this sophistication comes with vulnerability: like many Altec drivers of the era, the cone suspension can fatigue over decades, leading to a "mushy" bass response when the surround degrades. Fortunately, the 15" outside diameter cone is shared with other models in the 416 series, making reconing a viable path to restoration.

Interestingly, the 416-8B is often compared to the earlier 416-8A, with collectors noting that while the two share nearly identical specifications, their mounting configurations differ. According to user reports, the 416-8A was designed for rear baffle mounting, while the 8B variant suits front-mount applications — a subtle but critical distinction in system integration. This suggests Altec was tailoring mechanical design to specific cabinet architectures rather than altering acoustic performance. The 76 mm (3") voice coil further underscores its pro-audio pedigree, enabling extended power handling and reduced compression during long runs.

Specifications

Manufacturer	Altec Lansing
Product type	16" low-frequency loudspeaker / woofer / woofer unit
Driver size	16" (38 cm / 406 mm)
Frequency Response	25 Hz – 1,600 Hz
Free Air Resonance (Fs)	22.88 Hz
Impedance	8 Ω
Power Rating	30W (1975), 75W (1977)
Output sound pressure level	102 dB (New JIS)
Voice coil	76 mm / 3″ inside diameter
Magnet	Alnico V, 4.5 kg
External dimensions	16" diameter x 7" deep
Weight	17.5 pounds (7.9kg)

Key Features

Alnico V Magnet System

The 4.5 kg Alnico V magnet is central to the 416-8B’s performance, delivering a magnetic flux density of 12,000 gauss — exceptionally high for a production woofer of its era. This strong, stable field improves motor linearity and reduces distortion, especially at high excursions. Unlike ceramic magnets that became common in later designs, Alnico offers a smoother saturation characteristic, contributing to the “musical” reputation many users attribute to these drivers. However, Alnico is also more expensive and vulnerable to demagnetization from physical shock or improper handling, a risk that modern users must consider during transport or cabinet modification.

Edge-Wound Copper Ribbon Voice Coil

Few woofers ever used edge-wound ribbon wire in their voice coils, and the 416-8B stands among the elite that did. This construction — where flat copper strips are wound on-edge — increases packing density and surface area, improving heat dissipation and allowing the coil to survive prolonged high-power operation. The 76 mm (3") coil diameter further enhances thermal capacity and control over the cone. While this design reduces electrical resistance slightly, its primary benefit is mechanical: tighter coupling between the magnetic field and cone movement, resulting in faster attack and cleaner bass transients. It’s a hallmark of Altec’s no-compromise engineering, even if it raised manufacturing costs.

Dual Baffle Mounting Configuration

Although the 416-8A and 416-8B share nearly identical specifications, their physical integration differs. Collectors note that the 416-8A was designed for rear baffle mounting, likely to accommodate specific enclosure designs in professional systems. This suggests Altec was not merely rebranding but adapting the same acoustic platform for different installation needs. The shared cone size (15" outside diameter) and compatibility with available reconing kits make the 8B a practical choice for restorers seeking authenticity without sacrificing serviceability.

Collectibility & Value

Market observations suggest a mint pair of 416-8B woofers can command $500 to $600, with potential for higher prices among dedicated collectors. Units listed “for parts or not working” appear regularly on auction sites, indicating a steady supply of project-grade drivers. The primary failure mode — fatigued cone surrounds leading to loss of definition — is well documented, but the availability of reconing kits for the shared 416 series cone means functional restoration is feasible. Given their use in both professional and high-end consumer systems, surviving examples in good condition are increasingly rare, and their reputation continues to grow in niche audio communities.