Altec Lansing 415
Not much is documented about the Altec Lansing 415. The record shows a 15-inch loudspeaker, mainly a woofer, that came in at least two variants. The 415-A Biflex and 415-C Biflex carry the "Biflex" name. There is also a separate field-coil version of the 415. That suggests an earlier design, from before the permanent-magnet era common to most Altec drivers.
The 415-A is known to be 8-ohm. Nothing else has turned up in period literature or surviving documentation: no power handling, no frequency response, no sensitivity. The model is listed in the reference book Western Electric Sound Part-1, alongside other historic Altec and Western Electric speakers such as the 515 and various WE field-coil units.
A handful of examples survive, sold through online marketplaces as single units or pairs. They confirm the 15-inch cone and, for the Biflex versions, the 8-ohm impedance. Beyond that, the 415 is a sparse entry in the Altec catalog.
Known specs:
- Driver size: 15 inches
- Impedance (415-A): 8 ohms
- Variants: 415-A Biflex, 415-C Biflex, field-coil model
- Era (415-C): circa 1960s (speculative)
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