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A couple Promethius questions

Posted by Paul Folbrecht (A) on December 15, 2007 at 12:41:50

Hello,

I've just ordered a pair of Blacks from Bill and discovered this forum. I'll post here rather than bother him with (more) direct email.

1) Where are people generally setting the bass xovers? Of course, this is totally room-dependent and I'm not looking for direction - just curious! I'm wondering where the -3dB point of the widebander is, more or less.

2) About that widebander - I wonder why 12"? That's awfully large to go up to 10K, no? Now, I'm NO speaker designer and this is NOT a criticism - I'm just noting that smaller drivers (4-8") are much more common to operate in this range. To ask an academic question - is the driver designed to go into cone breakup to produce the highs? Is it possible for a driver of this size to produce much above 1Kz through pistonic motion? I'm just curious - to me, it is academic. I realize the treatments Mr. Bastani applies may have a great affect on the driver's ability to produce hi freqs.

Cheers!

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Kimber Kable

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