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B&W CM7 Impedance Curve

This is a shot in the dark, but here it goes. Has anyone seen an impedance curve graph for the B&W CM7? I contacted B&W's U.S. operations and they told me that it's not available. That leads me to believe it looks like the Swiss Alps, and also makes me angry considering most other companies would provide that information right on their web site. I wish I had been wiser in my choice of speakers. What do they think, someone's going to crack the code on these not too bad speakers?
donjr

Showing 1 response by magfan

magfan
1,583 posts
 
Ask 'em about phase angle, too. That should raise there hackles.

phase is arguably more important that impedance. And a hi phase angle at the same frequency as a low impedance dip is worst of all.

a 45degree angle will reduce apparent power by 30%, not at all trivial.

some amps, mainly tube, simply do not like such loads.
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