17/06/2026
Now in store!
The Sonab OA-6 Type 2 (often referred to as the Mk II or Mk IIa) is a prestigious vintage, omnidirectional “ortho-acoustic” loudspeaker designed in the early 1970s by the legendary Swedish acoustician Stig Carlsson. These highly collectible speakers are known for their unique room-filling sound and specific technical layout:Driver Configuration: Each speaker houses an upward-firing midrange driver, four upward-firing tweeters, and a unique downward-firing 10-inch woofer. Active “Bass Energizer”: Unlike the earlier Type 1, which used vacuum tubes, the Type 2 features built-in silicon transistor amplifiers solely dedicated to electronically compensating and boosting the bass frequencies.
