@hilde45 .."The key issue, it seems, is how loud people want to play them."
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Yep, desired volume levels, room size, and placement options matter in order to decide on the type of preferred amplification and whether these are the speakers are for you (or maybe not). I’ve heard the 8s and 16s placed in different locations in a room, and they tended to sound their best to me out from the front wall a little bit. Was involved in attempted listening sessions with nice 10w, 20w, 60w tube amps. Me, I’d go with 60wpc push-pull tube amps for these, imo. Very few SS amps need apply. I’d still pick really good mono tube amps over most good Class-A SS amps for these particular speakers. .
imo, its not the same type of hollow sound co-mingled/blurred and spread all across the front such as I’ve heard with some of the Magnepan speakers. It’s more of a directed and forward (at you) type of sound when the speakers are slightly tilted to the listener. The speakers, particularly the 8s provide some added upper end detail you don’t hear with most conventional cone speakers. Some may not like this. Really good tube amps, and with big-iron behind them would totally be my preference for these.
Selecting the correct amplification for the room and for these speakers is key, imo. If (decades late on these) Steve Guttenberg does not review them with different amplifiers in different size rooms, and placements, the test and review will be somewhat limited imo. Having heard these speakers at least 15 different times, with different amplifiers. Your hearing, rooms, and experience may vary. Best of Luck to anyone who jumps in on these.