ESC
604A (Rev. 2)

604A (Rev. 2)

BrandAltec, Altec Lansing
ManufacturerAltec Lansing Corporation
SeriesDuplex
FunctionSpeaker
Produced1947
CountryUnited States
Form FactorPart
Signal PathPassive Hardware
Dimensions38.6 × 38.6 × 28.2 cm (W × H × D)
Weight29lbs
Treble2x3 Multicellular Coaxial Horn
Midrange/Bass15" Paper Cone
Sensitivity92dB/0.1W/5'
Impedance (Nominal)20Ω
Crossover Frequency2kHz (Altec N-2000-B)
Dispersion (Horizontal)60°
Dispersion (Vertical)40°
Compression Diaphragm MaterialAluminum
Resonant Frequency (Fs, Woofer)38Hz
Voice Coil Diameter (Woofer)3"
Voice Coil Wire MaterialAluminum
Voice Coil Wire GeometryRectangular
Magnet MaterialAlNiCo
Power Handling25W
MSRP (1947)$205.80 (Altec N2000B: $39.20)
NotesCrossover revision