ESC
Quantum

Quantum

BrandSound Lab
DesignerRoger West, Ph.D., Dale Ream, Ph.D.
FunctionSpeaker
Produced19??-2000
CountryUnited States
Form FactorFloorstanding
Signal PathPassive Hardware
Dimensions53"x14"x3" (Base: 14"x15") (HxWxD)
Weight53lbs
Power117/220VAC, 50/60Hz, 2W
Frequency Response38Hz-Ultrasonics
Midrange/Treble133in² Electrostatic Diaphragm (Diaphragm Thickness: 3 microns)
Bass8" Polypropylene Cone
Sensitivity88dB/W/m
Impedance (Nominal)8Ω
Crossover Frequency250Hz
Horizontal Dispersion60°
Enclosure Type (Bass)Bass Reflex
Recommended Power>50W
Power Handling150W
FinishOak
MSRP (1999)$2,270
Connections
  • Input · Binding Post (Universal)
Controls
  • Bass Level
  • Treble Level · Rotary Switch · 4 Positions in 3dB Steps
  • DC Bias · Rotary Pot