David build question. Front panel cut out?

For livingroom sound better than in a theatre.
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Ray
Posts: 6
Joined: Mon Jun 02, 2014 9:19 pm

David build question. Front panel cut out?

#1 Post by Ray »

At the bottom of the front panel (panel 11), would it have a negative effect on the horn section if had cut out that are shaped after driver access covers? All the exterior panels are made with 18mm BB. I had 18mm BB for about 7 years and was starting to get weathered so I used before it got to far gone. I have a picture of what I am thinking, but sure how to and to this post.

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Ray
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Bill Fitzmaurice
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Re: David build question. Front panel cut out?

#2 Post by Bill Fitzmaurice »

That would make the horn mouth opening too large.

Ray
Posts: 6
Joined: Mon Jun 02, 2014 9:19 pm

Re: David build question. Front panel cut out?

#3 Post by Ray »

Ok, thank you Bill. I was just thinking about that for looks.

jimbo7
Posts: 875
Joined: Fri Dec 28, 2012 10:45 am
Location: St. Louis

Re: David build question. Front panel cut out?

#4 Post by jimbo7 »

make some faux grills
BFM builds:
XF212
T24 BP102 24"
2x SLA's 6-5" mids, 9- gt-302's
2x AT 14" MCM 55-2421
TrT 5" MCM 55-2421
AT 18" JBL GTO804
2x OT12 flat array
2x SLA Pro 2-Alpha 6's 2-Goldwoods
2x T39 24" 3012lf
Simplex 10 BP102

Ray
Posts: 6
Joined: Mon Jun 02, 2014 9:19 pm

Re: David build question. Front panel cut out?

#5 Post by Ray »

I was thinking of doing that.
Right now I am dealing with a 120 Hz room mode. That I did not have when using aT45 and a pair of KLH 5's.

Ray
Posts: 6
Joined: Mon Jun 02, 2014 9:19 pm

Re: David build question. Front panel cut out?

#6 Post by Ray »

Pictures of finished Davids
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A two pictures of finished Davids
A two pictures of finished Davids
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Tom Smit
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Location: Sarnia, Ont. Canada

Re: David build question. Front panel cut out?

#7 Post by Tom Smit »

Great job! :clap:
How do they sound?
TomS

Ray
Posts: 6
Joined: Mon Jun 02, 2014 9:19 pm

Re: David build question. Front panel cut out?

#8 Post by Ray »

They sound amazing, very detailed but not harsh. In am using GR research m130 midrange, Radian planar ribbon tweeter and a Tang Band W8-740P subwoofer. For the crossover I a use Sublime Acoustics K231 active crossover at 80 hz and 3K hz. At 200 hz I was getting a loud room mode at 120 hz. I want to try try a 100 hz crossover but have not order that board yet.

Ray
Posts: 6
Joined: Mon Jun 02, 2014 9:19 pm

Re: David build question. Front panel cut out?

#9 Post by Ray »

I made the mid tweeter panel an exterior panel so I can try different driver combinations.

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