Crown xti amps
LightningInABottle
Posts: 4
When using Crown xti series amps with the DRPA and using the presets for these amps, how should the amp's onboard signal processing be set? Is it best to let the DRPA do all the work or is there reason to use the amp's onboard processing as well?
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DRA
For live sound:
Yamaha board
DRPA(just got this)
xti2000
xti4000
Yamaha S115V(2 or 4) depending on the venue
Yamaha SW115V(2) Subs always used for DJ gigs but sometimes not used for indoor Live music gigs depending on Bass Amp being used and size of room (if the drum kit needs some help). And yes, I would prefer stronger subs but I got a deal on these and they are easy to handle.
I did have a Yamaha P5000S but sold it and bought the xti4000. What I was doing was using the Yamaha for the S115V's and the xti2000 on the subs bridged with the onboard DSP set for subharmonic synth and the filters set to match the SW115V's, rolling off the highs at 120hz for DJ gigs. For live gigs using the subs, since the SW115V's are rated up to 2kHz I experimented with different roll off points to give some more whump for our bass player who plays up the neck, while making sure to keep the cones in the mains and subs in the same plane.
I want to get the most out of the DRPA with the mains and subs for now. My plan is to get a 260 and another Crown, and assign the DRPA to the monitors (I use a Yamaha powered mixer to drive monitors now.) . I'm not going to tackle bi-amping the S115V's at this point, but will consider that at some point after I get the 260.
While I'm at it, I have been reading as much of this forum as possible and trying to absorb, but what about outdoor setup? From what I've read outdoor use of AutoEQ is a no-no, unless perhaps you're in a confined area (walls, solid fences). Is it best to just go flat to start and then tweak the GEQ in the DRPA?
Thanks,
Lightnin'
The delay:
Here's what we know:
LR24 slopes have a 7.4...ms delay from subs to tops...for some reason I cannot quantify when I biamp my tops I get 1...+ ms of delay needed for the horn, and 4ms of delay on the mid woofer...this is for Peavey SP1, Yamaha club series, and other 12\" 2 way horn loaded boxes... or there abouts... These are approximate...and germain to the driverack. I haven't done extensive testing on the Crown DSP ...
The Limiter in the Crowns is superior...to the DRPA and PX
If you haven't already, download \"Band Manager\" and use it to tune your system...I use System Architect, but I have the 4800 and they work nicely together.. I do have a couple of systems that I designed and tuned for other people and for them I use \"band Manager\" ... that way if they have a problem I have them hook into the internet and I can view the amps, their operation, and modify the parameters on the fly
As for your bass... be careful... those subs were meant to provide low end... NOT \"Whump\" as you call it... OH... and I'd be VERY careful of the sub synth with those subs....I believe they only have the 3\" voice coil Eminence driver and they cannot take the same beating as the Omega 4\" VC subs. I'd HPF them @ 45 hz BW 18 or even 24, and realize you have only 650 watts.. that's very little headroom.... and no 150 watts over \"program\"is NOT headroom...
Where in the world did you read that? It's the ONLY place you can go to get AWAY from reflections, and standing waves and all the crap that happens indoors in closed spaces...Realize this... RTA based analyzers are NOT good room compensating devices...After all, all we are trying to do with the Auto EQ is FLATTEN the response of the system...
Gadget
As I read in one of your posts, there's a lot of info to absorb all at once, and now going back and re-reading the FAQs and some of the posts I had found when trying to do some topic specific searches, I see my misunderstanding of outdoor Auto EQ, I had it exactly bassackwards somehow. And I had the misconception that the DRPA could some how get flat without doing any rta. Silly me.
I have been using HiQnet to do the settings in the xti2000 and when I was registering the xti4000 I saw Band Manager but i haven't installed it yet. Will do so tonight. I looked at the info on the Harmon site and yes, beyond cool.
When I referred to \"whump\" I was referring to giving a bassist who play's in the higher registers, Jaco/Victor-esque, a bit more balls in the room without having it coming so focused from their amp and reducing stage volume from the bass amp. I guess techniques for handling bass in a PA is a topic of its own. What I was saying is that I was trying to let these subs handle frequencies extending to 1kHz or a little beyond, overlapping the mains. Thanks for the warning about sub synth with these boxes.
Thanks for the info on what aspects of the xti's dsp to use.
On the headroom issue, for properly handling the subs, would it be better to add another xti2000 and use each xti2000 bridged mono into one of the subs, with the xti4000 on the mains, OR bridge the xti4000 and let it drive the subs chained and then put a bridged xti2000 on each mains channel?
For most live band gigs program power times 1.5 or 2 for subs.
For DJ'ing (assuming rap) Program power is about as high as you will want to go.
Boom
Boom---Boom---Boom
Boom---Boom
Boom is different than BoooooooooooomBoooooooooooooooooom-BooooooomBoooooooooom-Boooooooooooooooooooooom. The latter makes a funny smell at even 1.5x program.
DRA
G
Why DBX would include it in a loudspeaker management system completely baffles me.
Dennis
Some on PSW like to use the sub synth (or BBE, etc) to fill out a less than full guitar or other instrument. So, I guess if you are mixing a guitar ensamble....
I do wish that DBX would detail what the process does. Does it add content 1 oct below the 2 listed bands or does it add content to the 2 listed bands? How high does it sample?