Yes, the midrange/treble is open; the bass is closed box. These units
sounded superb before their unfortunate "accident". I have always
lusted after SD Acoustics SD1s - the OBSes are the closest thing I'll
ever get to them, I think.

I have a set of Mk 2, SD1's sitting in my garage, that I keep thinking
I must sell. Superb speakers, just too big for the room I have now,
so suprplus to requirements.

Let me know if you're interested.

tom.
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