loading
reading
writing
saving
searching
Altec full range 409-8D - $50 (Mesa)
QR Code Link to This Post
These are configured currently for PA / background use via a transformer-based constant voltage system, but can easily be converted to regular home audio use. Each Altec speaker is a "full range" design - an 8 inch woofer with a built in crossover and cone tweeter mounted to the front in one package.
The cabinets and grills are in very good shape due to the fact they were mounted and left alone for a very long time. When they were removed and transported some cosmetic damage occurred, or I would rate them excellent. All drivers have been tested and work great.
$50 per speaker.
Google AI gives us this:
The Altec 409-8D is an 8-inch, vintage, full-range, dual concentric speaker with a nominal impedance of 8 ohms and an allowable input of 16W.
Key specifications include a resonant frequency (\(F_{s}\)) of 91 Hz, a voice coil diameter of 25mm, a sensitivity of 96 dB, and a frequency response of 50 Hz to 14 kHz.
Specifications Driver Type: 8-inch full-range, dual concentric
Nominal Impedance: 8 Ω
Allowable Input: 16W
Voice Coil Diameter: 25mm
Resonant Frequency (\(F_{s}\)): 91 Hz
Output Sound Pressure Level: 96 dB
Frequency Response: 50 Hz to 14 kHz
Cone Voice Coil Diameter: 1.00″ (25.4mm)
Cone Outer Diameter (OD): 8″ (203.2mm)
Cone Depth: 1.450″ (36.830mm)
Weight: 1.3 kg
Contact Don at: 602-four three zero 0175