Hello,
I have a crown XTI 4000 powering two 36 inch wide T48's. I Also have a Driverack PA2 available. Are the onboard limiters in the XTI sufficient? Or, would the driverack be better suited?
Also, how to determine how much limiting?
Thanks in advance
T48 limit settings.
T48 limit settings.
4 T48 20 inch 3015LF
2 T48 36 inch 3015LF
2 T48 36 inch 3015LF
-
Bruce Weldy
- Posts: 8578
- Joined: Fri Nov 27, 2009 11:37 am
- Location: New Braunfels, TX
Re: T48 limit settings.
The XTi only has a -3/-6/-12 setting. It won't do what you need. Use the Driverack.
You set the limiter using a voltmeter on the outputs of the amp with amp turned all the way up (but, no speakers attached). You'll put a 60hz test tone through your mixer with the input and the output of the mixer at unity.
Then you access the limiter section of the DR and turn off the OverEasy function and make sure you are accessing the limiter and not the compressor - you have to scroll through to get to the right place. Then watching the voltmeter, turn adjust the limiter until it gets to your desired voltage. Then, while watching the voltmeter, quickly crank the mixer volume all the way up. If the voltmeter doesn't move, you've done it correctly.
6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210
"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."
-
Keryn O'Shea
- Posts: 572
- Joined: Sat Jan 26, 2013 5:50 pm
- Location: Brisbane, Australia
Re: T48 limit settings.
If you know the Xmax of your driver, we can help you with the voltage limit setting.
AT8 14", AT10 19", T30 28" LAB12, T48 36" 3015LF, THT 20" LAB15, SLA 4x3"/4x4", CArray 6x4", TLAH, TLAP, J10 FA, J12 FA, OT8 CD, OT12 FA, OT15 CD, SLAP 2x6"/4x6", WH8, DR280 MA, XF210. Next J10L
-
Bill Fitzmaurice
- Site Admin
- Posts: 28964
- Joined: Tue May 02, 2006 5:59 pm
Re: T48 limit settings.
It's in the plans.Keryn O'Shea wrote: ↑Mon Jul 21, 2025 3:18 pm If you know the Xmax of your driver, we can help you with the voltage limit setting.
Re: T48 limit settings.
Eminence Kappalite 3015LFKeryn O'Shea wrote: ↑Mon Jul 21, 2025 3:18 pm If you know the Xmax of your driver, we can help you with the voltage limit setting.
4 T48 20 inch 3015LF
2 T48 36 inch 3015LF
2 T48 36 inch 3015LF
Re: T48 limit settings.
9.6mmJmoore wrote: ↑Mon Jul 21, 2025 5:25 pmEminence Kappalite 3015LFKeryn O'Shea wrote: ↑Mon Jul 21, 2025 3:18 pm If you know the Xmax of your driver, we can help you with the voltage limit setting.
4 T48 20 inch 3015LF
2 T48 36 inch 3015LF
2 T48 36 inch 3015LF
-
Keryn O'Shea
- Posts: 572
- Joined: Sat Jan 26, 2013 5:50 pm
- Location: Brisbane, Australia
Re: T48 limit settings.
Yes it is, however if the OP has a driver not listed in the plans, which we now know he does, this table is very helpful..Bill Fitzmaurice wrote: ↑Mon Jul 21, 2025 4:28 pmIt's in the plans.Keryn O'Shea wrote: ↑Mon Jul 21, 2025 3:18 pm If you know the Xmax of your driver, we can help you with the voltage limit setting.
Also if the cabs were bought used, there may be a chance the OP doesn't own plans. And if they don't, it would be best to purchase them.
AT8 14", AT10 19", T30 28" LAB12, T48 36" 3015LF, THT 20" LAB15, SLA 4x3"/4x4", CArray 6x4", TLAH, TLAP, J10 FA, J12 FA, OT8 CD, OT12 FA, OT15 CD, SLAP 2x6"/4x6", WH8, DR280 MA, XF210. Next J10L