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BOOM BLAST...Help a brother fast!!

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Michael Irie View Drop Down
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    Posted: 17 April 2006 at 2:53pm
Greetings Crew..

I'm in need of some assitance setting the crossover point on my dbx
driverack PA.

I've got four new 18" 1000 Watt Scoop Bins, and I haven't been able to
really see what they can do until I can figure out this crossover business.

Here is my dilemma and the few answers thrown out. Can anyone help to
walk me through setting the crossover point?

I am trying to run 2 JBL SF-15's for highs and 4 18" Scoop bins for lows.

I have a Crown CE-1000 to push the two SF-15's and a Crown CE-4000
to push the four custom made scoop bins containing Madison
Executioner x 18" 1000 Watt Drivers.

I purchased a dbx driverack PA to act as my crossover, and need some
help configuring the crossover point (I think thats the problem).

I currently have the two SF-15s as my left and right channels from the
CE-100.

I have the scoop bins daisy chained so that the left Channel of the
CE-4000 goes out to one scoop which is then daisy chained to a second
scoop via a double speakon outlet on the back of the scoop. The same for
the right side.

I used the "Auto-wizard" set-up function where I was able to identify the
exact models of amps I'm using, and I was able to identify the highs as
SF-15's, but I had to input the scoops as "Custom."

When I fired everything up, the highs were getting a strong signal and
bumping loud, but the scoop bins sound like they are barely on.   They
are definatley getting some signal, but its very faint.

It seemed like they were not getting enough power, so I quickly shut the
system down.

There was never a point where I set the crossover point. I thought that the
dbx "Autowizrd" was going to set that for me.

Can you all provide some guidance for a newbie to get the right crossover
point set.

I'm playing reggae music, so I want a mix with HEAVY lowend.

Thanks in advance for any advice.

Here are the specs for my Scoop Bins:

> >FS 36hz
> >VAS 6.95
> >SD 213.82
> >Qts 0.545
> >Qes 0.577
> >Qms 9.79
> >BL 23.86
> >Re 5.5 x 2
> >Nominal Ohms 8
> >Le 2.858m H
> >Mms 259.59
> >X max 0.75
> >X mech 1.5"
> >SPL 103db
> >Freq. Res. 30-1500hz
> >Coil size 4"
> >Coil type copper clad aluminum
> >Cone type treated paper
> >surround type accordion
> >Binding posts gold
> >basket type cast aluminum cast aluminum cast aluminum
> >Magnet size 100oz. 200oz. 200oz.
> >Power RMS 1000 watts
> >Power Peak 2000 watts
Red pon Red and mi say Black pon Black
Thats how yu string a sound inna de lawn
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ceharden View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2006 at 3:04pm
From your other post you know how to set the crossover frequencies manually on the Driverack.  To start with try a crossover at about 120Hz between the scoops and SF15's and use a high pass on the scoops at 40Hz.  Set all slopes to LR-24.  You'll probably need to add a bit of gain to the scoops, start with about 3dB.  You can change the gain on the crossover section to the right of the crossover slope adjustment.
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Michael Irie View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Irie Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2006 at 3:16pm
Ceharden..

Give Thanks for the advise. I'll give it a go this evening.

Here's a rough Channel One Mix for your troubles..

http://www.sendspace.com/file/vyt9mi


Red pon Red and mi say Black pon Black
Thats how yu string a sound inna de lawn
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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 18 April 2006 at 10:16am
Originally posted by Michael Irie Michael Irie wrote:

Ceharden..

Give Thanks for the advise. I'll give it a go this evening.

Here's a rough Channel One Mix for your troubles..

http://www.sendspace.com/file/vyt9mi


so your part of channel one ? 
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Tom Umney View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom Umney Quote  Post ReplyReply Direct Link To This Post Posted: 20 April 2006 at 7:26pm

Originally posted by Michael Irie Michael Irie wrote:

Ceharden..

Give Thanks for the advise. I'll give it a go this evening.

Here's a rough Channel One Mix for your troubles..

http://www.sendspace.com/file/vyt9mi


Nice mix!!!

 

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Tom Umney View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom Umney Quote  Post ReplyReply Direct Link To This Post Posted: 20 April 2006 at 7:29pm

Originally posted by mykey mykey wrote:

Originally posted by Michael Irie Michael Irie wrote:

Ceharden..

Give Thanks for the advise. I'll give it a go this evening.

Here's a rough Channel One Mix for your troubles..

http://www.sendspace.com/file/vyt9mi


so your part of channel one ? 

My m8 Colin who lent me that pre-amp I posted a post about a few weeks ago is best friends with Mikey Dread from Channel One soundsystem.

Now I wonder mykey if you might know my m8 Colin? as he helps Channel One out sometimes around Carnival period.

 



Edited by ToXiC - 20 April 2006 at 7:30pm
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Michael Irie View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Irie Quote  Post ReplyReply Direct Link To This Post Posted: 20 April 2006 at 7:47pm
Toxic..

I'm glad that you liked that mix. Here's another one:

http://www.sendspace.com/file/85q15l

I'm happy to report that upon turning my crossover point up from 30 Hz
to 250 Hz, I'm getting a strong bass signal to my scoops.

Keep in mind I'm running a two way set-up with no dedicated Mids, which
is why I have the crossover point at 250Hz, as opposed to having down
around 100 Hz.

I still need to experiment to get the sound right, but things are 100%
better than when I originally posted here. Thanks to all for your advise.

Any other tips on dialing in a crisp, punchy bass line would be much
appreciated. Respect, -MK

Red pon Red and mi say Black pon Black
Thats how yu string a sound inna de lawn
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Tom Umney View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom Umney Quote  Post ReplyReply Direct Link To This Post Posted: 20 April 2006 at 8:46pm

Cheers m8. I got a few Iration Steppas@ University of Dub mixes I'm gonna upload soon, the bass is unbelivably powerfull sounding on that mix even through the headphones.

A reggae pre-amp would help with your bass and other things a lot if you ain't got one already?

mostec has a range of pre-amps, even 'The mini-Pre' would dramatically improve things and make the bass much crisper, etc. http://mostec.co.uk/electronics/preamps.htm

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Tom Umney View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom Umney Quote  Post ReplyReply Direct Link To This Post Posted: 20 April 2006 at 9:17pm

Originally posted by Michael Irie Michael Irie wrote:

Toxic..

I'm glad that you liked that mix. Here's another one:

http://www.sendspace.com/file/85q15l

I'm happy to report that upon turning my crossover point up from 30 Hz
to 250 Hz, I'm getting a strong bass signal to my scoops.

Keep in mind I'm running a two way set-up with no dedicated Mids, which
is why I have the crossover point at 250Hz, as opposed to having down
around 100 Hz.

I still need to experiment to get the sound right, but things are 100%
better than when I originally posted here. Thanks to all for your advise.

Any other tips on dialing in a crisp, punchy bass line would be much
appreciated. Respect, -MK

What other mixes you got? I got loads of Jah Observer,some Jah Shaka,some Iration Steppas, some King Shiloh,some Stur Gav and some Jah Tubbys mixes I can trade with you in return when I'll upload them in the next few days.

 

 

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mykey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 21 April 2006 at 8:48am

Originally posted by Michael Irie Michael Irie wrote:

Toxic..

I'm glad that you liked that mix. Here's another one:

http://www.sendspace.com/file/85q15l

I'm happy to report that upon turning my crossover point up from 30 Hz
to 250 Hz, I'm getting a strong bass signal to my scoops.

Keep in mind I'm running a two way set-up with no dedicated Mids, which
is why I have the crossover point at 250Hz, as opposed to having down
around 100 Hz.

I still need to experiment to get the sound right, but things are 100%
better than when I originally posted here. Thanks to all for your advise.

Any other tips on dialing in a crisp, punchy bass line would be much
appreciated. Respect, -MK

give a nice bump on the 63 and 125 scoops love a bita 63

  from 30hz? you mean you had your bass going 30 down?

and 250 to high for scoops you want 80cycles  to 150cycles  max

you should get a bit of boom blast run for cover fast then



Edited by mykey - 21 April 2006 at 8:52am
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