Altec Lansing 515C (1979)
A 38 cm alnico V woofer unit released in 1979 with high sensitivity and extended low-frequency response
Overview
The Altec Lansing 515C is a 38 cm cone-type woofer unit introduced in 1979, designed for high-performance audio systems requiring strong bass output and high efficiency. Built around a powerful alnico V magnetic circuit, this driver delivers a sensitivity of 104 dB (New JIS) and can handle up to 75 watts of input power. With a frequency response ranging from 20 Hz to 1 kHz and a low resonance frequency of 25 Hz, the 515C was engineered for deep, accurate bass reproduction in professional and high-fidelity applications.
Specifications
| Driver size | 38 cm diameter cone type woofer unit |
| Impedance | 16 Ω |
| Allowable input (power handling) | 75W |
| Output sound pressure level (sensitivity) | 104 dB (New JIS) |
| Frequency characteristic (response) | 20 Hz to 1 kHz |
| Lowest resonance frequency | 25Hz |
| Voice coil diameter | 76mm |
| Weight | 12.4kg |
Design
The 515C features an alnico V-type strong magnetic circuit, contributing to its high sensitivity and efficient electromechanical performance.
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