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Crown xti's, Jbl mrx's Dbx Driverack


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#1 67Shawn

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Posted 18 November 2012 - 05:15 PM

What are the benifits of using a driverack pa+ with the xti's and the mrx's, or, do i really need one?

#2 dakos

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Posted 19 November 2012 - 01:57 AM

This question is too general and so is the answer... A few scenarios I see a justification for using the DR with the XTI:
If you absolutely need a specific feature that the DR has and the XTI doesn't then use it.
If you want to mix non DSP amps with the XTI for a multi amp system.
Some more scenarios that I can't think of at the moment but also in general the DRPA, DRPA+ and the DRPX are considered not that high in sound quality as their bigger brothers, the DR260 and up so you also need to take that into account.
Avi

#3 67Shawn

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Posted 01 December 2012 - 10:22 AM

I have to dj a Cristmas party tonight, what would you use, and how would you set it up with Band Manager?
There will only be about 50-70 people in a medium sized hall.

Gear i have, 2 Crown xti 4000's 1 xti 6000
2 jbl subs mrx 528s
2 mrx 525's
4 mrx 512m's i will be using Band Manager,
I was thinking about just using 2 of the 512m's on xti 4000 in stereo, and one 528s off one side of the xti 6000.
how would you do the settings in Band Manager, just load the speaker files and that is it? do i set high pass\ low pass filters?

#4 67Shawn

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Posted 01 December 2012 - 10:44 AM

Looks like i posted this in the wrong thread, sorry.

#5 dakos

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Posted 01 December 2012 - 12:46 PM

I see two/three options here, either go with the 512 powered by the 4000 over the 528 powered by one channel of the 6000, this way you get a bit more low end, a bit more power but a bit heavier. The other option I see is to use the 525 powered by the 6000. For the most out of your speakers you can use the 512 powered by the 6000 over the 528 powered bi amped by the two 4000.

Don't forget to sum the signal going into the subs.
Avi

#6 67Shawn

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Posted 01 December 2012 - 01:04 PM

Not sure what, sum the signal going into the subs means, i need to do this as easy as possible, i am still learning.

#7 dakos

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Posted 02 December 2012 - 04:01 PM

That's the second option on the "Input Mode" menu on the DSP, it's called CH1+CH2, it's needed to avoid the subs canceling each other.
Avi

#8 67Shawn

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Posted 18 December 2012 - 06:31 PM

Sorry, just got my internet hooked back up, my contract ran out, and i didn't want to enter another contract with them, found a good provider now, now contract.

What i ended up doing was, 2 of the 512m's with one xti 4000 stereo, over 1 528s one side of the xti 6000.

I have another party to dj for on new years eve, about 200 - 250 people, trying to figure out what to do for this one, i was thinking 2 of the 512m's with xti 4000 stereo
over 2 528s with one xti 6000 stereo, i know it is 200-250 people but, that is going to be through out the building, looks like the hall area will only hold around 100-150 people, any suggestions? and what setting in the amps would you recommend?

#9 dakos

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Posted 19 December 2012 - 11:09 AM

So if I understand correctly you need two rigs, a FOH rig for the main hall where 150 people are going to be and then another rig for a different part of the building?
Avi

#10 67Shawn

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Posted 19 December 2012 - 11:13 AM

View Postdakos, on 19 December 2012 - 11:09 AM, said:

So if I understand correctly you need two rigs, a FOH rig for the main hall where 150 people are going to be and then another rig for a different part of the building?
Hi Dakos, no, i just need a rig for the main hall.

#11 dakos

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Posted 19 December 2012 - 11:22 AM

Then you just connect the other 528 to the othe channel of the 6000, leave the DSP configured to  CH1+CH2. This way the subs are not connected in stereo, it's called dual mono.

One more thing is you'll get better stronger bass if you group your subs together so put them in one place. If you want to read more about the whys and hows then google "center cluster subs".
Avi

#12 67Shawn

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Posted 19 December 2012 - 06:49 PM

View Postdakos, on 19 December 2012 - 11:22 AM, said:

Then you just connect the other 528 to the othe channel of the 6000, leave the DSP configured to  CH1+CH2. This way the subs are not connected in stereo, it's called dual mono.

One more thing is you'll get better stronger bass if you group your subs together so put them in one place. If you want to read more about the whys and hows then google "center cluster subs".
Avi
Ok, so run 2 512's stereo off the xti 4000, and 2 528s off xti 6000 CH1+ CH2 = dual mono, i havn't done that before, thanks for the help.

I have read about centering the subs, i will play around with how far to have the 512s from the subs, thanks again Dakos.

#13 dakos

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Posted 19 December 2012 - 09:25 PM

Let me know how it all worked out
Avi :)