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Crossover in modded x15
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colinmono View Drop Down
Young Croc
Young Croc


Joined: 10 October 2007
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Points: 1113 		Post Options Post Options   Thanks (0) Thanks(0)   Quote colinmono Quote  Post ReplyReply Direct Link To This Post Posted: 03 March 2010 at 4:52pm
Nice work, looks like a very tidy job for your first build Clap

Originally posted by weazle1 weazle1 wrote:

The level of the HF driver is now in tune with that of the bass driver, (had to turn the Lpad nearly all the way down though!).


Excellent news. I love it when a plan comes together.
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axeman91 View Drop Down
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Points: 249 		Post Options Post Options   Thanks (0) Thanks(0)   Quote axeman91 Quote  Post ReplyReply Direct Link To This Post Posted: 03 March 2010 at 5:12pm
Originally posted by Lincoln1 Lincoln1 wrote:

This lpad would eat the power involved being 100watts. The comp that we are trying to pad is 50w aes, ie even less 'rms' watts.
 
What is the power of the 15" cone though?  The purpose of the l-pad is to lose some of the power going to the hf driver whilst still being able to deliver the power to the 15", so your L-pad would need to be able to handle the differnce in power (someone please correct me if I'm wrong but that it certainly the way I understood it!)
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DMorison View Drop Down
Old Croc
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Points: 1740 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DMorison Quote  Post ReplyReply Direct Link To This Post Posted: 04 March 2010 at 12:53pm
Originally posted by axeman91 axeman91 wrote:

Originally posted by Lincoln1 Lincoln1 wrote:

This lpad would eat the power involved being 100watts. The comp that we are trying to pad is 50w aes, ie even less 'rms' watts.
 
What is the power of the 15" cone though?  The purpose of the l-pad is to lose some of the power going to the hf driver whilst still being able to deliver the power to the 15", so your L-pad would need to be able to handle the differnce in power (someone please correct me if I'm wrong but that it certainly the way I understood it!)
 
Well, the L-pad would be inserted after the HPF section of the crossover, so it only has to handle the power present above 3.5kHz in this case - so even if the box is being run with a larger amp it's almost certain that there's very little average power going on up there - consider how a 50 watt HF driver can be paired up with  a 3- or 4-hundred watt low-mid driver in the first place.
Hope this helps,
David.
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Nitz V1505 View Drop Down
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Points: 1719 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Nitz V1505 Quote  Post ReplyReply Direct Link To This Post Posted: 22 March 2010 at 9:30am
Originally posted by weazle1 weazle1 wrote:

Alreet!

Installed adjustable Lpad and it worked a treat. The level of the HF driver is now in tune with that of the bass driver, (had to turn the Lpad nearly all the way down though!).

Also worked out what the white noise was coming from the HF driver as it was still apparent when the Lpad was fitted. Turned out it was my mixer?? When the mixer was disconnected and a signal was put straight into the amp, the white noise dissapeared. Looks like a new mixer might have to be on the cards!

Hers a pic of the finished modded X15. Im quite pleased with the overall build and sound, as its my first time ever workin with wood, or building speakers!



Cheers
  Before changing your mixer find out if it has got a ground wired on the plug if its iec. Alot of mixers have a floating ground which can cause problems with hum. Also using balanced cables if you got xlr ops's on your mixer helps.
Nice first buildClap
LET THE BASS ROLL LIKE THUNDER
& THE TOPS LIKE LIGHTNING.....
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audioalliance View Drop Down
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Points: 144 		Post Options Post Options   Thanks (0) Thanks(0)   Quote audioalliance Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2010 at 8:37pm
NOICE BUILD.... 
http://www.myspace.com/audioalliance
music is our mission
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colinmono View Drop Down
Young Croc
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Joined: 10 October 2007
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Points: 1113 		Post Options Post Options   Thanks (0) Thanks(0)   Quote colinmono Quote  Post ReplyReply Direct Link To This Post Posted: 14 October 2010 at 8:55am
Reply to spambot deleted. Doh.





Edited by colinmono - 14 October 2010 at 1:33pm
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