I have decided to build a pair of switchable bi/dipolar rear surrounds, originally created (I think) by Dan Brown here. I plan on modifying them slightly to delete one of the woofers, making it a TWT type design, and just wanted to know;
a) if I should absolutely change the crossover to make up for the woofer I'm removing, and
b) what exactly I should change.
His site seems to not be the most stable, so I'll post some more info and an image of his crossover. The original design uses 2 of the Dayton DC160-8 paper cone 6 1/2" woofer and 2 of the Dayton DC28F-8 silk dome tweeters. His design has the 2 woofers facing the front (direct radiating) and 1 tweeter on each side (the tweeters have a DPDT switch wired between them to select bi or di operation).
I'll be changing the size of the cabinet (reducing), removing one woofer, and keeping the rest mostly the same, so how much should I worry about changing the crossover? The only thing I could really think was that the impedance would be off. This was chosen to be a budget project, and one to get some hands on experience and practice speaker and crossover building, since I've only done a sub before. If they work out, great, if not, I can put them into the system of a less critical friend. Any help from the pros would be very much appreciated.
Edit to include crossover parts list:
C1 (027-430, Dayton MPP)
C2 (027-420, Dayton MPP)
Ce (027-358, Non-Polarized Electrolytic)
L1 (266-806, 18 ga. AirCore)
L2 (266-816, 18 ga. Air Core)
Req (016-6, 10W)*
Rs (016-2, 10W)
Rp (016-12, 10W)
a) if I should absolutely change the crossover to make up for the woofer I'm removing, and
b) what exactly I should change.
His site seems to not be the most stable, so I'll post some more info and an image of his crossover. The original design uses 2 of the Dayton DC160-8 paper cone 6 1/2" woofer and 2 of the Dayton DC28F-8 silk dome tweeters. His design has the 2 woofers facing the front (direct radiating) and 1 tweeter on each side (the tweeters have a DPDT switch wired between them to select bi or di operation).
I'll be changing the size of the cabinet (reducing), removing one woofer, and keeping the rest mostly the same, so how much should I worry about changing the crossover? The only thing I could really think was that the impedance would be off. This was chosen to be a budget project, and one to get some hands on experience and practice speaker and crossover building, since I've only done a sub before. If they work out, great, if not, I can put them into the system of a less critical friend. Any help from the pros would be very much appreciated.
Edit to include crossover parts list:
C1 (027-430, Dayton MPP)
C2 (027-420, Dayton MPP)
Ce (027-358, Non-Polarized Electrolytic)
L1 (266-806, 18 ga. AirCore)
L2 (266-816, 18 ga. Air Core)
Req (016-6, 10W)*
Rs (016-2, 10W)
Rp (016-12, 10W)
Comment