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keilamym View Drop Down
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Joined: 20 November 2007
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Points: 441 		Post Options Post Options   Thanks (0) Thanks(0)   Quote keilamym Quote  Post ReplyReply Direct Link To This Post Topic: scoop question
    Posted: 09 October 2008 at 10:34pm

in a lot of the venus i play in, i usually use reflex cabinets.. some are maybe 40ft x 40ft, and others are pretty large... in any case, people are always right next to the speakers.... does people need to stand away from scoops like folded horns in order to get the real effect?

also, i removed some eminence drivers from a pair of my yamaha sw218.... can someone please let me know if they look ok to be used in the sites scoop plan? Its a 600w driver and this is what Yamaha sent me as specs.
 
Re (ohms) = 5.62
Le (mH) = 1.65
Qm = 6.28
Qe = 0.330
QT = 0.320
Xmax (mm) = 9.10
BL (Tm) = 18.14
eff (%) = 3.49
Fs (Hz) = 28.08
Mms (g) = 110.91
Cms (mm/N) = .2896
Rms (Ns/m) = 3.1152
Vas (liters) = 546.61
Sd (sq cm) = 1159.17
EBP = 84.0
SPL (dB) = 97.4
VC dia (in) = 3.0
Frame = Cast Aluminum
Thanks in advance.
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tweeter box View Drop Down
Old Croc
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Joined: 21 October 2007
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Points: 6784 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tweeter box Quote  Post ReplyReply Direct Link To This Post Posted: 10 October 2008 at 6:58pm
what was the model no of the drivers?
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sKs01 View Drop Down
Old Croc
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Joined: 11 April 2008
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Points: 1744 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sKs01 Quote  Post ReplyReply Direct Link To This Post Posted: 10 October 2008 at 7:36pm
looks like it should work nicely from what information you can glean from a horn resp sim.
You're a big man, but you're in bad shape. With me it's a full time job. Now behave yourself.
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tweeter box View Drop Down
Old Croc
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Joined: 21 October 2007
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Points: 6784 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tweeter box Quote  Post ReplyReply Direct Link To This Post Posted: 10 October 2008 at 7:37pm
Originally posted by sKs01 sKs01 wrote:

looks like it should work nicely from what information you can glean from a horn resp sim.
 
exactly, hence why i wanna know the driver id
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keilamym View Drop Down
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Joined: 20 November 2007
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Points: 441 		Post Options Post Options   Thanks (0) Thanks(0)   Quote keilamym Quote  Post ReplyReply Direct Link To This Post Posted: 11 October 2008 at 5:00pm
Thanks guys...  the model is JAY7011..  They come in the Yamaha Sw118 and Sw218 reflex cabinets... While I have 4 of these to test with, and they only cost about 110US new.  I have once more cabinet i want to replace these with something more powerful so i'll have 4 more... 4 perside is what i'll be shooting for, than put a reflex on top... that is how its supposed to work right... lol
 
 
 
i guess i can go get me some wood then... i never build anything other than reflex cabinets so all those cuts look a little intimidating


Edited by keilamym - 11 October 2008 at 5:14pm
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keilamym View Drop Down
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Joined: 20 November 2007
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Points: 441 		Post Options Post Options   Thanks (0) Thanks(0)   Quote keilamym Quote  Post ReplyReply Direct Link To This Post Posted: 12 October 2008 at 8:47am

have anyone built scoops out of MDF yet? Not sure what the cost difference is here but I was wondering because I have some in my garage already. If works then I dont need to purchase new Ply...
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Deadbeat View Drop Down
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Joined: 12 March 2008
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Points: 3167 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Deadbeat Quote  Post ReplyReply Direct Link To This Post Posted: 12 October 2008 at 2:47pm
I'm assuming you're playing music that requires scoops. search for posts by Elliot Thompson on how to integrate double 18s with scoops.

Otherwise there are better optimal things to put on top of scoops.

MDF? Sure, as long as you enjoy sealing it, waterproofing it and carrying lead weights on your back. Otherwise, it's fine.
Away on extended leave.
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keilamym View Drop Down
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Joined: 20 November 2007
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Points: 441 		Post Options Post Options   Thanks (0) Thanks(0)   Quote keilamym Quote  Post ReplyReply Direct Link To This Post Posted: 12 October 2008 at 5:03pm
deadbeat...
 
ok i get ur point.... just buy some ply.....  lol
 
also, i play reggae most of the time but still need reflex cabinets for the hiphop/r&b gigs i get... so thanks, i'll look up the Elliot Thompson posts...
 
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