DanielT
Major Contributor
Here we have someone who was thinking about the impact of the listening room on the speakers:What is better? Look at the in room response what could be improved? And again dont focus on the bass bump.
This design had a different approach then what we are used too. They lower directed sound in specific areas at 1-3k and fill it with indirect sound to make it balanced again. Hence the flat in room response.
A trick which seems to work quiet well in a reflective room if you read the different listening tests
His 70's models, OA -5 Type 2 are now not very good speakers. It was based on a coveted sound ideal in the 70's, an ideal that is now hardly is in demand. Stig Carlsson worked all his life to create speakers adapted to the listening room, real living rooms, that is.
Edit:
But he 90s Carlsson OA-52.2 can still blow the socks off most speakers.I attach a picture of that model.
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