ESC
A70 (Rev. 2)

A70 (Rev. 2)

BrandBoston Acoustics
DesignerAndy Petite
FunctionSpeaker
Produced1981-198?
Form FactorBookshelf / Stand Mounted
Signal PathPassive Hardware
Dimensions35.6 × 61 × 19.7 cm (W × H × D)
Weight26lbs
Frequency Response40Hz-25kHz ±3dB
Treble1" Soft Dome (Ferrofluid)
Midrange/Bass8" Paper Cone
Sensitivity90dB/2.83V/m
Impedance (Nominal)6Ω
Impedance (Minimum)4Ω
Crossover Frequency2kHz
Crossover Slope6dB/Oct (First Order)
Recommended Amplifier Power15-75W
Power Rating (Nominal)75W
Power Rating (Peak)150W
Enclosure TypeSealed
Enclosure ConstructionParticleboard
FinishWood grain vinyl
Connections
  • Input · Spring Terminal
NotesTweeter changed from earlier SEAS with round faceplate to an in house built square faceplate tweeter. Minor refresh of labeling to match the new models released in 1981.