old version of Pi4 pro [message #52644] |
Tue, 16 September 2008 11:19 ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
vladimir4
Messages: 22 Registered: May 2009
|
Chancellor |
|
|
Hi Wayne, I finally started to build my new-old project - 4 pi pro-like using Beyma 15M300, JBL 2426h & Eminence H290. I've two questions: I saw that you've developed recently new crossovers, I'd like to ask if it fits also to my configuration - or I better stay with the old-one. Is there any benefits (audiophile point of view) to add Deltas in mid-horns to this configuration ? Could you resend me plans for this configuration please ? Thank you in advance, Vlad.
|
|
|
Re: old version of Pi4 pro [message #52646 is a reply to message #52644] |
Tue, 16 September 2008 12:15 ![Go to previous message Go to previous message](/forum/theme/AudioRoundTable/images/up.png) ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
![](http://audioroundtable.com/forum/images/custom_avatars/5.gif) |
Wayne Parham
Messages: 18748 Registered: January 2001
|
Illuminati (33rd Degree) |
|
|
Use the new crossover, as it has smoother response through the crossover region.The two-way matched-directivity configuration trades simplicity and fewer crossover points for higher bandwidth required of the midwoofer. The three-way cornerhorn configuration reduces bandwidth, in turn reducing IMD, while retaining matched directivity but it is a more complex system with one more crossover point. Both designs offer controlled directivity that results in smooth response on and off axis over a wide 90 x 40 pattern. The two-way has collapsing directivity up to 1kHz, becoming constant by 2kHz or so. The three-way begins to become directional down around 300Hz, just above the room's modal region.
|
|
|
|
|
|
|
|