Altec Lansing 414-8C (1950s–1970s)
A 12-inch professional-grade Alnico woofer known for high sensitivity and warm, detailed sound in classic multi-way systems.
Overview
The Altec Lansing 414-8C is a 12-inch professional-grade woofer produced from the 1950s through the 1970s. Designed for use in multi-way loudspeaker systems, it was commonly paired with Altec’s 285 or 802 compression drivers in high-fidelity applications such as movie theaters, broadcast studios, and live sound. It was often housed in the iconic Altec A-7 "Voice of the Theatre" enclosure or similar vented designs. Known for its musicality and dynamic punch, the 414-8C remains a sought-after driver among vintage audio enthusiasts and restorers.
Specifications
| Driver size | 12 inches (30.5 cm) |
| Type | Woofer unit |
| Frequency characteristic | 45 Hz – 4 kHz (typical in recommended enclosures) |
| Lowest resonance frequency | 30Hz |
| Impedance | 8 Ω |
| Allowable input | 20–40W RMS (system-dependent) |
| Output sound pressure level | 98–100 dB (1W/1m) |
| Voice Coil Diameter | 1.75" diameter |
| Weight | 14.5 lbs (6.6 kg) |
| Magnet Type | Alnico V |
| Cone Material | Paper |
| Surround | Cloth |
| Recommended Enclosure | Altec A-7, or similar vented design |
Design
The 414-8C features an Alnico V magnet structure, a paper cone, and a cloth surround. These materials contribute to its smooth transient response, natural tonality, and high sensitivity.
Context
Market
Units in original, working condition typically sell for $150–$400 each. NOS or museum-grade specimens and professionally restored units with original components command higher prices. Common issues include dried or cracked cloth surrounds and weakened Alnico magnets over time. Restoration often involves re-foaming or surround replacement, reconing, or magnet recharging. The driver’s collectibility is rated 7/10.
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