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121 wedge New build

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dlyxover View Drop Down
Young Croc
Young Croc


Joined: 14 June 2007
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dlyxover Quote  Post ReplyReply Direct Link To This Post Posted: 30 January 2009 at 4:02am
I was playing with smaart today a checking the port tuning of the cab.

I don't have an RTA mic (whats not the best start) so I used a rode NT5


Its suppose to say 63Hz but it was flicking between 68-77Hz

I placed the mic in the centre of the port level with the baffle
is that right?





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Tony Wilkes View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony Wilkes Quote  Post ReplyReply Direct Link To This Post Posted: 31 January 2009 at 11:20am
Gareth, with my cabs I have gone with the BMS recommendation of 25l / driver with a port frequency of 63hz. presuming you have done the same your ports could do with lengthening to give you a slightly lower tuning.
Of coarse if you have less cab. volume then the tuning could well be right.

Tony


Edited by Tony Wilkes - 31 January 2009 at 11:21am
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bespoke Quote  Post ReplyReply Direct Link To This Post Posted: 31 January 2009 at 12:29pm

LOL by looking at your pictures it looks like you have just copied a JBL SRX 712............

Everything is the same: Speakcons, horn size, Neo 12", size etc etc but i guess nobody is buying the JBL SRX now due to the fact they cost over a £1000 each new !!
 
Start selling your little monitors you couold make a killing !!
 
Lovely build and a lovely cabinet Thumbs Up 
 
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dlyxover View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dlyxover Quote  Post ReplyReply Direct Link To This Post Posted: 05 February 2009 at 2:00pm
they do look close I agree, but not seen that JBL before 
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dlyxover View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dlyxover Quote  Post ReplyReply Direct Link To This Post Posted: 10 February 2009 at 12:06am
and then there were 2

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Tony Wilkes View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony Wilkes Quote  Post ReplyReply Direct Link To This Post Posted: 10 February 2009 at 12:22pm
Gareth,

Did you tune the second one lower or stick with the original ports? And get the Fekin grills on Cry

Tony
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dlyxover View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dlyxover Quote  Post ReplyReply Direct Link To This Post Posted: 10 February 2009 at 12:50pm
Ive given it and extra 8mm on the port.  I cant really hear the difference to be honest.

they really kick out when in a pair, im taking bass out of them on the graphic need bigger amps now.

Im gona get he grills sorted, they are just staying in the studio at the mo.


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Tony Wilkes View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony Wilkes Quote  Post ReplyReply Direct Link To This Post Posted: 10 February 2009 at 5:31pm
Ok matey very well done.

Just one more tip when you put the grills on add some foam to them as well. I know the BMS cones are waterproof but it would stop stains from beer etc and protect the comp driver from the same.

Markie will do you some pieces of foam to match the grills.

Tony
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dlyxover View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dlyxover Quote  Post ReplyReply Direct Link To This Post Posted: 17 March 2009 at 2:56pm
Markie grills, fit perfect cheers



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odc04r View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote odc04r Quote  Post ReplyReply Direct Link To This Post Posted: 17 March 2009 at 3:37pm
Looking good, a decent job all round.
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Tony Wilkes View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony Wilkes Quote  Post ReplyReply Direct Link To This Post Posted: 17 March 2009 at 4:49pm
I can stop worrying now. Excellent work, you just need a little badge to put on them now!!!
My 620's took about 2 months too really run in and I swear they have gained 2 db in the process.
Try them with 2000w music and stand well back.

Tony
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dlyxover View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dlyxover Quote  Post ReplyReply Direct Link To This Post Posted: 17 March 2009 at 6:25pm
Im still running them with a rmx 2450 but it only gives 650ishwatt at 4ohm.

Gona try it with my q66 4ohm bridged on bass, it claims 1700watt and the qsc doing hi

should do the trick
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