Altec Lansing
604-8G Duplex
Introduced 1972MSRP not recorded
Late-generation version of the famous 604 Duplex 15-inch coaxial studio driver, most often found in the factory 620 cabinet. The 604 series monitored countless classic recordings and remains a coveted vintage coaxial.
MSRP
—
Original list price not on record.
Used market · Good
$3,500
as of Aug 16, 2026
MSRP to used market
Price history will fill in as sales are recorded.
Specifications
- Type
- 15in coaxial Duplex driver (2-way), typically in 620 cabinet
- Drivers
- 15in woofer with concentric compression driver and multicell horn
- Weight
- 38 lbs
- Dimensions
- driver 15.9 dia x 12 deep; 620 cabinet 30.5 x 26 x 18.5"
- Impedance
- 8 Ω
- Sensitivity
- 99 dB
- Frequency response
- 30Hz-20kHz
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