ESC
Seven

Seven

BrandESS
ManufacturerElectrostatic Sound Systems, Inc.
FunctionSpeaker
Produced197?-197?
CountryUnited States
Form FactorBookshelf / Stand Mounted
Signal PathPassive Hardware
Dimensions40.6 × 68.6 × 35.6 cm (W × H × D)
Frequency Response35Hz-20kHz ±3.5dB
Treble2.25" Paper Cone
Midrange5" Paper Cone
Bass9"x12" Foil-stressed Expanded Plastic Flat Diaphragm (KEF B139 SP1044)
Impedance (Nominal)8Ω
THD (80Hz-20kHz, 90dB)<1%
Recommended Amplifier Power (RMS)30W
Power Handling (Peak)350W
Enclosure TypeBass Reflex
Enclosure ConstructionParticleboard
FinishOiled Walnut, Rosewood
NotesRevised VII after Electrostatic Sound Systems redefined itself as ESS.