Sonab-OA-6 Type 1

Sonab
OA-6 Type 1
Sweden
Type: Active
Positioning: Floorstanding
Enclosure: Bass Reflex
Port Position: Bottom
Way system: 3
Frequency Response: 2514.000 Hz -4dB
Crossover Frequency: 250/2500 Hz
Dimensions (W x H x D): 29 x 78 x 51 cm
Produced since: 1966
Principle: Omni directional, three way bass reflex type. Two separate tube amplifiers, one for low frequencies up to 250 Hz and one for higher frequencies above 250Hz. Drivers: Woofer: 10” downwards firing, Mid-range: 1pc 22 cm Philips 9710AM full range speaker, Tweeters: 4 pcs 5 cm 16 ohms Peerless MT20HFC. OA stands for “Ortho Acoustical” and the number six indicates the number of elements used, one woofer, one midrange and four tweeters. These are the same elements used in the predecessor Coalscuttle, with the exception of the Peerless woofer replaced by a new Sinus woofer. Sonab OA-6 Type 1 (Mk I) was on the market from 1966 to 1970.
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