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This is my 1st build post on this form so here goes:
I thought I might post complete information on my FCT3.8 Speakers (Flames).
They will be at DIY Dayton.
For background on this build see: http://techtalk.parts-express.com/sh...d.php?t=209534 and http://techtalk.parts-express.com/sh...d.php?t=208861
1st some pics:
The idea for this build came from the Thiel CS3.7's:
These speakers have the following drivers:
Tang Band 25-1372sc
TB W4-657sh
TB W6-789s
8" Dayton PR.
The 3 way system was centered on the W4-657sh OB, open back tunnel for this Mid.:
This driver has a very detailed and clear sounding driver with the open back.
I started this build as a gift for my son's birthday, once I heard the W4-657sh I knew this was the Mid to build a speaker for him. I just happen to have the other 2 TBs I got in Lexington from Robert. Both looked to work well with this Mid., So the FCT3.8 was born. The W6-789s crossed around 800hz has alot of bass. The 5 degree slope allows the drivers to be some what time alined.
Here are my working drawings:
The XO was giving me some problems, but Wolf steped in and helped me work it all out, with his help I think I got it right.
Here is the finial XO:
Modeled Freq:
PR modeling (using Jeff B's program).
And Measurment from ARTA:
Well to make a long story short, when my son saw and heard these speakers, He said thier finish did not match thier sound, (they sound HOT, and should look HOT) would it be OK if he redid the finish, I told him to do what he wanted, thier his.
So, he worked up a design and had a local Artist (James Brown of BBPublishing.com) to execuite his design.
So these speakers went from:
(Before)
To this:
(AFTER)
Overall this was not a hard build, the rounded top was a bit of work, but all else was not hard. 3 chambers, mid chamber is 6"x6" with a 5" round hole in the back. The open back really made a major difference in how these things sound. This is a very good sounding system, very detailed with well defined bass. The only thing missing is there is no upper "air" with this tweeter, but otherwise this speaker sounds execllent!
If you make it to Dayton these will be there.
Thanks for looking -- Ed
I thought I might post complete information on my FCT3.8 Speakers (Flames).
They will be at DIY Dayton.
For background on this build see: http://techtalk.parts-express.com/sh...d.php?t=209534 and http://techtalk.parts-express.com/sh...d.php?t=208861
1st some pics:
The idea for this build came from the Thiel CS3.7's:
These speakers have the following drivers:
Tang Band 25-1372sc
TB W4-657sh
TB W6-789s
8" Dayton PR.
The 3 way system was centered on the W4-657sh OB, open back tunnel for this Mid.:
This driver has a very detailed and clear sounding driver with the open back.
I started this build as a gift for my son's birthday, once I heard the W4-657sh I knew this was the Mid to build a speaker for him. I just happen to have the other 2 TBs I got in Lexington from Robert. Both looked to work well with this Mid., So the FCT3.8 was born. The W6-789s crossed around 800hz has alot of bass. The 5 degree slope allows the drivers to be some what time alined.
Here are my working drawings:
The XO was giving me some problems, but Wolf steped in and helped me work it all out, with his help I think I got it right.
Here is the finial XO:
Modeled Freq:
PR modeling (using Jeff B's program).
And Measurment from ARTA:
Well to make a long story short, when my son saw and heard these speakers, He said thier finish did not match thier sound, (they sound HOT, and should look HOT) would it be OK if he redid the finish, I told him to do what he wanted, thier his.
So, he worked up a design and had a local Artist (James Brown of BBPublishing.com) to execuite his design.
So these speakers went from:
(Before)
To this:
(AFTER)
Overall this was not a hard build, the rounded top was a bit of work, but all else was not hard. 3 chambers, mid chamber is 6"x6" with a 5" round hole in the back. The open back really made a major difference in how these things sound. This is a very good sounding system, very detailed with well defined bass. The only thing missing is there is no upper "air" with this tweeter, but otherwise this speaker sounds execllent!
If you make it to Dayton these will be there.
Thanks for looking -- Ed
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