greenmountainaudio5317

Responses from greenmountainaudio5317

First Order Crossovers: Pros and Cons
Hi Eldartford.Thank you for your comments. Just a quick note, however. A second-order filter is not two first-order crossovers in series, nor "cascaded". The parts in a second-order filter, the capacitors and inductors, are of different values tha... 
Phase Coherence or Time Alignment: Which More Imp?
It has been a while. I recall seeing phase coherence but not time coherence. I did not pursue Kaminsky's work because it could only be implemented in an active crossover. Again, it has been many years, and I could be thinking of something or someo... 
First Order Crossovers: Pros and Cons
Karls, you said it well. Thank you. I should have included that for the benefit of those familiar with vector addition. Sean, the answers to what you ask in your first two paragraphs lie in Karls' contribution, and the information you present in y... 
First Order Crossovers: Pros and Cons
Dear Golix,We have exchanged some thoughts on the Time Coherence thread- thank you for sharing those. I greatly respect what Tannoy has done for sound quality, as I can tell you do. Certainly working in a studio qualifies you to know when a speake... 
Phase Coherence or Time Alignment: Which More Imp?
Dear Golix,You are right in several ways. First-order filters shift the phase of each driver by 45 degrees, one driver's output is "leading", the other's is "lagging". Thus, the Phase Difference between them is 90 degrees, as I think you implied. ... 
GMA Callisto feedback Green Mountain Audio
Dear Sean,Yes, the tweeter is better, and more expensive in the Callisto. The woofer is the same, with added Marigo damping materials on its frame. The crossover is almost the same, but those few changes in it are significant. The cabinet also mak... 
Bookshelf Speaker Problem
Dear Tom,If cosmetics are not important, and you only have a few inches to fill between the sides of the speaker and its cubbyhole, then use the highest-density white mattress foam to fill that gap, to at least the depth of the speaker cabinet.It ... 
Questions for Roy Johnson of Green Mountain Audio
Thank you for your questions.My apologies for the delay in response- We are only now returning to "normal" after the success of the Rocky Mountain Audio Fest in Denver. I may not be any faster for a few more months, especially with the CES (actual...