Which speakers will fill 5,000 cubic ft coherently

cant go much beyond 10" wide to fit in the apce between the amp Boxes and the corners.

Please Please don't tell me you are placing such awesome speakers in a corner or near a sideboard or drawer with sharp angles - this will definitely affect the soundstage and may collapse it to the speakers (edge diffraction = claustrophobic sound)

=> this might be a major part of your problem...any reflections within less than 7 msecs can severely affect the openess of the sound...the worst is that everything collapses to the speakers. My rule of thumb is a minimum of three feet from side walls but four feet or more is safest. Remember our ears sense timing for where a sound comes from....the time a signal arrives is how you interpret where it is (you have to go 10 DB SPL louder to make your brain pay attention to "loudness" rather than arrival time cues) Now when you clutter or crowd early arrivals with edge diffraction of reflections it can really mess up the size of the soundstage.

Tyler says no problem with the Woodmeres and Bill at Atma-Sphere says no problem (4 ohms, dips to low 3's, 91 db sensitivity)- so it seems between the Zu Definitions and Woodmeres so far.........

03-17-08: Springbok10
Tyler says no problem with the Woodmeres and Bill at Atma-Sphere says no problem (4 ohms, dips to low 3's, 91 db sensitivity)- so it seems between the Zu Definitions and Woodmeres so far.........

I find that surprising, and almost incredible. The advice from Bill is completely at odds with advice Ralph has given me over the past few months.

It does not surprise me that Tyler would say no problem.

I guess you'll find out when you hear the combo.

You might consider trying Speltz Zero boxes with the Tylers to double (or triple) their impedance.

>> 3-17-08 Tvad: I find that surprising, and almost incredible. The advice from Bill is completely at odds with advice Ralph has given me over the past few months.<<

I'll find Ralph and clarify this before taking a b-i-g 500 lb step like this.

Ralph's advice about no less than 6 ohms and preferably not less than 8 ohms is right.

I've tried the Speltz autoformer. Although I really like the speltz cables, I do not recommend the autoformer. I've tried it. I believe it exists as a band-aid for those who have an amp/speaker mismatch and it may be helpful in that context. It does, however, introduce problems of its own. IMHO, a seller who recommends buying a 4ohm speaker and the autoformer to go with the Atma is doing a disservice.

Again, with a room that large, why are you limited to a 10" speaker width? Maybe I am misunderstanding the situation, but any of these speakers need breathing room around them and you have a big room.