ESC
AMT 1a

AMT 1a

BrandESS
SeriesAMT
FunctionSpeaker
Produced1975-1976
CountryUnited States
Form FactorFloorstanding
Signal PathPassive Hardware
Dimensions36.2 × 78.7 × 36.2 cm (W × H × D)
Frequency Response45Hz-22kHz ±2.5dB
TrebleHeil Air-Motion Transformer
Midrange/Bass12" Cone
Passive Radiator12" Laminated Polyfoam
Impedance (Nominal)4Ω
Dispersion (Horizontal)120°
Dispersion (Vertical)30°
Enclosure TypePassive Radiator
Enclosure ConstructionParticleboard
FinishOiled Walnut
Connections
  • Input · Binding Post (Universal)
Controls
  • Brightness · Rotary Switch