Question about throat horn sides

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djtrumptight
Posts: 818
Joined: Tue Dec 15, 2009 6:08 pm
Location: Detroit,Michigan

Question about throat horn sides

#1 Post by djtrumptight » Thu Feb 27, 2020 4:40 pm

I’m in the process of building another set of DR250’s.I cut the throat horn sides at the specified dimensions.After making the angled cuts they now measure at 18 5/8”.Is this a critical measurement and should I make new throat horn sides ? I’m using the older DR250 plans since I already have 4 of those.
68846EC3-4318-49EB-A78A-0E2EEC0D7BB6.jpeg
EDD3B921-0A35-4EE2-A46B-ACF5E1367C0B.jpeg
Built:
2 Autotuba's MCM 55 2421
8 T48's 24"wide 3015 LF
2 DR 250's melded Deltalite II 2510
2 DR 250's flat Deltalite II 2510
2 SLA HT systems
1 Table Tuba Dayton DCS 255-4
2 T 39's 20" wide 3012 LF
1 T-18 13" wide MCM 55 2421
2 SLA Pro's

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Bill Fitzmaurice
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Posts: 27653
Joined: Tue May 02, 2006 5:59 pm

Re: Question about throat horn sides

#2 Post by Bill Fitzmaurice » Thu Feb 27, 2020 4:52 pm

I don't have the old plans, so I can't help.

djtrumptight
Posts: 818
Joined: Tue Dec 15, 2009 6:08 pm
Location: Detroit,Michigan

Re: Question about throat horn sides

#3 Post by djtrumptight » Thu Feb 27, 2020 4:57 pm

By old plans I mean the ones that were available in December of 2009
Built:
2 Autotuba's MCM 55 2421
8 T48's 24"wide 3015 LF
2 DR 250's melded Deltalite II 2510
2 DR 250's flat Deltalite II 2510
2 SLA HT systems
1 Table Tuba Dayton DCS 255-4
2 T 39's 20" wide 3012 LF
1 T-18 13" wide MCM 55 2421
2 SLA Pro's

Grant Bunter
Posts: 6601
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
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Re: Question about throat horn sides

#4 Post by Grant Bunter » Thu Feb 27, 2020 5:02 pm

The plans from March 2012, and the plans prior to that, both say that the height after making the angled cuts should be 19 3/8".
What do your plans say?
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" BP102 , 2 x 28" 3012lf.
WH8: x 3 with melded array.
Bunter's Audio and Lighting "like"s would be most appreciated...

djtrumptight
Posts: 818
Joined: Tue Dec 15, 2009 6:08 pm
Location: Detroit,Michigan

Re: Question about throat horn sides

#5 Post by djtrumptight » Thu Feb 27, 2020 5:46 pm

Grant mine says the same thing but that’s in regard to the outer face of the throat horn supports,I’m good on that part,they are 20” before trimming with the 3 degree angle,my problem is the throat horn sides that were 19 1/2” before I cut the angles.After cutting the angles as u can see from the picture they are roughly 18 5/8”,I’m just wondering if that is a critical measurment
Built:
2 Autotuba's MCM 55 2421
8 T48's 24"wide 3015 LF
2 DR 250's melded Deltalite II 2510
2 DR 250's flat Deltalite II 2510
2 SLA HT systems
1 Table Tuba Dayton DCS 255-4
2 T 39's 20" wide 3012 LF
1 T-18 13" wide MCM 55 2421
2 SLA Pro's

User avatar
Bill Fitzmaurice
Site Admin
Posts: 27653
Joined: Tue May 02, 2006 5:59 pm

Re: Question about throat horn sides

#6 Post by Bill Fitzmaurice » Thu Feb 27, 2020 6:04 pm

Not necessarily critical, but it will cause the cab to have a bit more angle to it.

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