ESC
OA-4 Type 2

OA-4 Type 2

BrandSonab
FunctionSpeaker
Produced1970-73
CountrySweden
Form FactorFloorstanding
Signal PathAnalog Hardware
Dimensions240 x 490 x 430 mm = 9.4 x 19.3 x 16.9 inch
Weight9 Kg
Frequency Response48Hz-15kHz +/- 5 dB
TypeOmnidirectional, bass reflex
Box volume36 liters
Crossover Frequency3500 Hz ((6/12dB))
Impedance7Ω
Speakers : Full range unit220mm (8Ω Philips 9710/M01 full range unit)
Speakers : Tweeter 150mm (8Ω Peerless MT20HFC)
Speakers : Tweeter 250mm (8Ω Peerless MT20HFC)
Speakers : Tweeter 350mm (16Ω Peerless MT20HFC)
NotesProduced in Rosewood, Walnut, Teak, black or white lacquer