Altec Lansing 405A (1968)
A compact 10 cm full-range speaker unit released in 1968, designed for space-constrained audio installations.
Overview
The Altec Lansing 405A is a small aperture cone type full-range speaker unit introduced in 1968. Measuring 10 cm in cone size, it was built to deliver broad frequency response in a compact form factor. Its design prioritizes versatility in mounting, making it suitable for applications where space is limited. The unit features an 8 Ω impedance and handles up to 15W of peak input, with a rated power of 10W.
Specifications
| Model Rating Type | 10 cm cone type full range speaker |
| Frequency characteristic | 60 Hz to 15 kHz |
| Lowest resonance frequency | 95 hz (listed in 1970 catalog) |
| Lowest resonance frequency | 70 Hz (1976 catalog) |
| Impedance | 8 Ω |
| Rated input | 10W |
| Allowable input | 15W |
| Magnetic flux density | 10,250gauss |
| External dimensions | Diameter 111x Depth 51 mm |
| Weight | 0.9kg |
Design
The 405A is a small aperture cone type full-range speaker unit, engineered for compact integration without sacrificing frequency range.
Market
The Altec Lansing 405A was priced at ¥8,800 per unit around 1970, rising to ¥9,100 following a price revision, and reached ¥9,400 by 1976.
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