LandoD wrote:I thought the XLS series had an internal processor for hipass, lopass, and limiter just not EQ? Idk, I guess i got some more research to do.
The limiter is on or off......it's not usable for what you want to do.
It has the ability to either high pass or lo pass on either channel, but you can't do both on one channel.
Buy 'em for their weight, price, and power.....not the processing.
"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."
The limiter is on or off......it's not usable for what you want to do.
Can you explain a little further what you mean? This is from Crown's site about the limiter that is used :
Peakx™ limiters
Peakx™ limiters provide the ultimate in performance and protection for your entire system. This advanced algorithm was specifically developed and tuned to work with this amplifier and power-supply to achieve higher SPL will less audible artifacts. This means less distortion, less shutdowns, and maximum safe power delivered to your speakers. The Peakx™ limiters can be easily turned on or off by channel right from the front panel eliminating the need to be digging around in the back of the dark rack.
It has the ability to either high pass or lo pass on either channel, but you can't do both on one channel.
I'm not understanding this also. Why would I want to have a highpass and a lowpass on the same channel? All I'll need is a lowpass on both channels and according to their site, YouTube reviews, and the sales guy at Guitar Center, that's what it can do. I hope I'm not coming off as a smartass. I really do appreciate the help I've gotten here so far.
Btw, I checked http://www.speakerhardware.com/ , the site that I got my driver and hardware from, and they sell Crown XLS amps preset by them specifically for the tuba sub designs.
Let me start by saying that I own 3 of the XLS amps and have been using them for over a year......
Limiting - the limiter on the amp is not variable, it's on or off...period. Let's say you need to limit at 35 volts for your tuba and I need to limit at 60 volts for my Titan.....how does the amp know where to set the limiter? It doesn't.....I would assume that this limiter is really more to protect the amp than your speakers. The manual has no info at all about this other than it exists. And there is only an on and off switch in the software.
To limit your Tubas, you have to take into account all the devices in the chain before the signal reaches your amp, that's why it must be variable - to allow you to set it to your set up, not some random amount.
LoPass and HiPass - You absolutely must have a HiPass on your sub to keep it from blowing up trying to reproduce signals that it can't handle at a particular volume. Remember, you can't hear a folded horn sub breaking up - the first indication of a problem is silence.....dead silence.
The LoPass is necessary in order to crossover to the tops - you don't want the sub reproducing the same frequencies as the tops.
So, both are necessary. And the XLS won't do it.
What the XLS will do is allow you to set a crossover point (LoPass or HiPass) where one side handles the lows and the other side the highs. It will also let you either HiPass both sides or LoPass both sides. This is fine is you are going to always keep the subs at very low levels and are willing to take the chance that you might blow 'em. However, I doubt you are building these to run 'em at half of what they are capable.
As far as Leland setting them up for you - I'm thinking that maybe the wording about limiting was left over from the xTi amps. He would have to address that.....but I think it's a typo.
None of this is intended to discourage the use of XLS amps - I think they are a great value and work just fine. However, the is no substitute for a good front end device for limiting, crossover, and EQ. I use a dbx Driverack, others use the Behringer 2496.
"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."