Crown xti DSP Settings.

EQ guys are using on their cabs/systems. A good starting place if you don't have your own RTA.
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Landl.livesound

Re: Crown xti DSP Settings.

#31 Post by Landl.livesound »

tammojsmit wrote:
Landl.livesound wrote:
sine143 wrote:Yess... Good to get something right!

But back on topic. I notice that lots of people are running 48db LR sloped xovers. Why run LR over buttersworth, and are you noticing any seperation between tops and subs with such a steep slope? I've not had time to adequately eq my system, so I'm only running 24 db buttersworth, with a 48db buttsworth for the hipass on the subs, with no changes on the eq as of yet.
Hey Sine,


The one reason you see more 24dB/Octave recommended than 48dB/octave, is the 8 pole filter is much harder to get right in a design because of how steep it is, and if I recall correctly you will see more phase shift along with the filter.


Take Care!
Phil
I'm stepping rather gingerly here since I don't have the experience. :? From what I've read on the forum here, is that the preferred is LR and at 48db. Struggles have occurred with 48db Buttersworth.

Make sense?
Much of the time you will see LR used when the filters aren't being used as a HPF for subs/lows. Although I do know that are a decent amount of bi-amp settings that do call for a LR of one side and Butterworth on the other. It is all about the design and what works best, and that is where you need the experience with measurement equipment.

Even if you use a 48dB/octave LR you are still going to take slightly more to get the crossover region right compared to say a 24dB/octave. So I would still say the 24dB/octave LR is the best option for many, especially when your system is not an install and will be setup in different rooms/configurations, which could make the steep crossover filters work great in one room but horrible in another.

But if you have access to the correct measurement equipment I say go ahead and try it, why not, the worst you can do is learn something, just don't forget to use your ears!


Take Care!
Phil

sine143
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Re: Crown xti DSP Settings.

#32 Post by sine143 »

Oh, I definitly plan on gettin my hands dirty over the next couple months. Trouble is right now my space is less than ideal (apartment, paper thin walls). I'm pretty sure I pissed my neighbors off enough when we threw 50hz up to war volume against our shared walls hahahaha. As soon as I get a good place to do some real testing I'm gonna spend so many hours tinkering with this stuff I just might have to drop Diff EQ.
Built:
2x Tuba 30s delta12lf loaded (gone)
4x Otop12 d2512 loaded
8x t48s (18, 18, 24, 24, 30, 30) 3015lf loaded
2x AT (1 mcm, 1 gto 804)
2x SLA Pro (dayton pa6, 6 goldwood piezo loaded)
1x bastard XF208

2x OT212 (delta pro 450a loaded, eminence psd)

Landl.livesound

Re: Crown xti DSP Settings.

#33 Post by Landl.livesound »

sine143 wrote:Oh, I definitly plan on gettin my hands dirty over the next couple months. Trouble is right now my space is less than ideal (apartment, paper thin walls). I'm pretty sure I pissed my neighbors off enough when we threw 50hz up to war volume against our shared walls hahahaha. As soon as I get a good place to do some real testing I'm gonna spend so many hours tinkering with this stuff I just might have to drop Diff EQ.
That is the way to do it! Just play and learn. It takes time so don't get frustrated if things don't happen like you expect.


Uhhg, Diff EQ, I stopped at Calc 2 for now, although I really did enjoy the concepts of Calc and how they made sense in the real world. I let my "Lampi" friend at FIT take all the math courses for his rocket science degree.


Take Care!

bzb
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Re: Crown xti DSP Settings.

#34 Post by bzb »

sine143 wrote:Um.... I'm not exactly sure here man, but I remember reading somewhere that

3db is double the watts,
6 db is double the cabs
10 db is double the volume

THis means that if you are driving your T39s through 1 channel on your xti 1000, you are getting 500 watts at 4 ohms from that channel, meaning 250 to each cab. If you set your limiters to -3 db, the max the amp can supply is 250 watts to that channel at 4 ohms, meaning 125 to each cab.

I think....

I might be wrong, I'm just kicking this from my head, and as you know, I'm a noob.


EDIT

also, this doesnt account for those death spikes that get it up to like 1200 watts.

Thanks for the explanation :clap:

I figured this out afterward by using the multimeter method that's been posted a few times. There's just too much damned information on this board :lol:
Bobby Shively
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Charles Warwick
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Re: Crown xti DSP Settings.

#35 Post by Charles Warwick »

I just bought an xti 2000 and have been playing with the software for a while now, has anyone used the venue stuff? I'm honestly not sure what it does, but it looks like it could be cool?

I've figured out how to set filters and settings on the amp stuff now, but does anyone actually use the rest of this stuff?

BoostFab
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Re: Crown xti DSP Settings.

#36 Post by BoostFab »

do you guys know if the XTI's series can be link so the system architec software manages all of the amps, without having to hook up to the laptop individually!?!?

Ron K
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Re: Crown xti DSP Settings.

#37 Post by Ron K »

If you get a multi port USB/Ethernet adapter you can run the Ethernet side into a wireless router and control everything from a laptop.Simply USB the amps to the adapter. Pretty easy setup.

http://www.dlink.com/products/?pid=133

http://www.supermediastore.com/product/ ... et-adapter

I've seen them as low as $13.00 for a single USB to Ethernet and then you simply buy a USB Hub to go with that.
Ever since I replaced sex with food I cant even get into my own pants!

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BrentEvans
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Re: Crown xti DSP Settings.

#38 Post by BrentEvans »

Ron K wrote:If you get a multi port USB/Ethernet adapter you can run the Ethernet side into a wireless router and control everything from a laptop.Simply USB the amps to the adapter. Pretty easy setup.

http://www.dlink.com/products/?pid=133

http://www.supermediastore.com/product/ ... et-adapter

I've seen them as low as $13.00 for a single USB to Ethernet and then you simply buy a USB Hub to go with that.
I apologize if I misinterpreted what you were suggesting but devices like those will not bridge ethernet to usb. The only devices currently on the market to do that are routers or print servers which allow for the connection of ausb printer. I have read that such devices will not work with crown amps on other forums. A computer will still be required to access crown system architect. you maybe able to connect multiple amps to an inexpensive computer in the rack and use a product like vnc or remote administrator to access that computer and run system architect through the network.
99% of the time, things that aren't already being done aren't being done because they don't work. The other 1% is split evenly between fools and geniuses.

el_ingeniero
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Re: Crown xti DSP Settings.

#39 Post by el_ingeniero »

BrentEvans wrote:
Ron K wrote:If you get a multi port USB/Ethernet adapter you can run the Ethernet side into a wireless router and control everything from a laptop.Simply USB the amps to the adapter. Pretty easy setup.

http://www.dlink.com/products/?pid=133

http://www.supermediastore.com/product/ ... et-adapter

I've seen them as low as $13.00 for a single USB to Ethernet and then you simply buy a USB Hub to go with that.
I apologize if I misinterpreted what you were suggesting but devices like those will not bridge ethernet to usb. The only devices currently on the market to do that are routers or print servers which allow for the connection of ausb printer. I have read that such devices will not work with crown amps on other forums. A computer will still be required to access crown system architect. you maybe able to connect multiple amps to an inexpensive computer in the rack and use a product like vnc or remote administrator to access that computer and run system architect through the network.
Wireless USB extenders:
http://www.amazon.com/Gefen-Wireless-US ... 639&sr=1-1
http://www.amazon.com/Cables-Go-29571-T ... 639&sr=1-5

USB over CAT5 solutions:
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http://www.amazon.com/4PORT-Remote-USB- ... 26&sr=1-89
http://www.amazon.com/Sabrent-USB-RJXT- ... pd_sim_e_7
http://www.amazon.com/over-Cat5-Extensi ... y_e_text_b

USB over IP solutions:
http://www.amazon.com/Keyspan-U2S-2A-US ... pd_sim_e_6
http://www.amazon.com/Belkin-F5L009-5-P ... 223&sr=1-4
http://www.amazon.com/TRENDnet-4-Port-N ... 223&sr=1-6
http://www.amazon.com/SIIG-ID-DS0512-S1 ... _pr_sims_t
http://www.amazon.com/4PORT-Device-Serv ... 73&sr=1-16

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