At a guess I reckon they are down at around 82 or 83 dB. Given a good feed the clarity from the mid-range domes is impressive. Makes the JBL sound a bit muddy by comparison.

Bass drivers are Peerless, not Volt as I mistakenly said earlier in the thread.

''These were extremely fine speakers with a superb sound and flat frequency response. They do suffer from foam rot and are hence very cheap these days. A replacement Peerless woofer is available or recone the original. Described to the author by a B&O insider as one of the best passive speakers made by B&O.''

https://www.beoworld.org/prod_details.asp?pid=645