crest prolite 3.0 dsp?

Is this amp OK?
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sine143
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crest prolite 3.0 dsp?

#1 Post by sine143 »

anyone have experience with these? hows it stack up against say... a crown xti 2k or xti 2002
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)

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netwerks
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Re: crest prolite 3.0 dsp?

#2 Post by netwerks »

I don't think the 3.0 version is released yet. It is basically the peavey 300dsp with a bigger cap, true voltage limiter and ability to manage settings via usb. I am looking at these as well.

sine143
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Re: crest prolite 3.0 dsp?

#3 Post by sine143 »

so basically it will be extremely suitable for subs (bigger cap) vs the peavy?

and omg... the thru signal is switchable between pre and post dsp.
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)

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netwerks
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Re: crest prolite 3.0 dsp?

#4 Post by netwerks »

I have emailed crest 2x for a manual...no response.

sine143
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Location: Raleigh NC

Re: crest prolite 3.0 dsp?

#5 Post by sine143 »

i would very much appreciate a pm in the event they get back to you. I will try to do the same.
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)

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netwerks
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Location: Chicago, Ilinois
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Re: crest prolite 3.0 dsp?

#6 Post by netwerks »

It looks like they are out but no real world reviews. I tested a Peavey IPR DSP3000 on subs this weekend, sounded great so I'm sure the Crest would be equally as good. I would love to know what the voltage swing is on the Crest since all my drivers top out @ 60v. :)

I was also looking into the Behringer NU6000DSP ($499 online) which makes up for the lack of limiter on the Peavey IPR. You can download their dsp software and it appears it can be limited by Volts.

The only downsides (outside of actually hearing it) is it doesn't appear to be 2 ohm capable which is interesting because the 3000 series is. Looks like the 6000 is actually two bridged 3000 series in one box.

I do see where they've tested the 3000 series and it's a little low to be driving premium sub drivers topping @ 50v with no loads.

http://www.diyaudio.com/forums/class-d/ ... ments.html

I also see is it does not have a line level output to pass signal to another amp. :(

I wish that Peavey DSP IPR3000 had a better limiter in it!
Last edited by netwerks on Mon Aug 27, 2012 11:24 am, edited 5 times in total.

Bruce Weldy
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Re: crest prolite 3.0 dsp?

#7 Post by Bruce Weldy »

netwerks wrote:I see is it does not have a line level output to pass signal to another amp. :(
Just put a pigtail on the first connection to run to the next amp. A little wire, a little solder.....

Of course, if you are using regular mic cable - it's hard to make it fit in the connectors. It's best to use install cable inside the rack as it's smaller and easier to work with.....not to mention cheaper.

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."

SirNickity
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Re: crest prolite 3.0 dsp?

#8 Post by SirNickity »

When I (rarely) have to do this, I use a 1/4" to 1/4" TRS (since my small mixer has 1/4" outs), a 1/4" female TRS to 2x 1/4" female TRS splitter, and a pair of short 1/4" TRS to XLR patch cables to the amps.

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BrentEvans
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Re: crest prolite 3.0 dsp?

#9 Post by BrentEvans »

netwerks wrote: I wish that Peavey DSP IPR3000 had a better limiter in it!
The DDT circuit in the IPR3000s is effectively a 59v limiter. I have 3 IPR3000s and 5 IPR1600s (one is missing in the pic) :)
2012 SAC Rig - BEAudio.jpg
I agree that the DSP in the IPR3000DSP is lacking, but given the price difference, you can pair the standard versions with an outboard processor and have a great system.
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.

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netwerks
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Re: crest prolite 3.0 dsp?

#10 Post by netwerks »

Ipr 3000 dsp and soon to be released d-fend could become the new winning ticket. ;)

Is that ddt circuitry brickwall? 1v doesn't seem like much margin for error, of course there's always the attenuators.

SirNickity
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Re: crest prolite 3.0 dsp?

#11 Post by SirNickity »

1v below the recommended threshold isn't likely to be the straw that breaks backs. Every little deviation from ideal affects excursion. The horn is never precisely as modeled, the temperature isn't always exactly 25C, the voice coil isn't cold after an hour of playing, etc...

That's probably why the limit is set for Xlim / Xmax and not Xmech.

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BrentEvans
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Re: crest prolite 3.0 dsp?

#12 Post by BrentEvans »

netwerks wrote:Is that ddt circuitry brickwall? 1v doesn't seem like much margin for error, of course there's always the attenuators.
I haven't been able to get it to go past 59v with either constant tones or short pulses. It does seem to be brickwall. Further, it seems to act more as an RMS limiter than a limiter that clips the signal... there are no nasty artifacts even when full on into the DDT circuit. It's very musical... just sounds like a nicely compressed signal. This is good for speaker protection, because it limits power along with voltage... if your run hard into DDT the power under the curve won't rise as quickly as other limiters.
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.

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netwerks
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Re: crest prolite 3.0 dsp?

#13 Post by netwerks »

I spoke with a Crest rep today. I was told the 2.0 is available now, the 3.0 will not be available for another month and the 2.0/3.0 dsp models will not go out until after the first of the year.

sine143
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Re: crest prolite 3.0 dsp?

#14 Post by sine143 »

just bought my crown xti 4002... couldnt wait any longer.
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)

DJ Nada
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Joined: Mon Oct 15, 2012 8:20 pm

Re: crest prolite 3.0 dsp?

#15 Post by DJ Nada »

My Pro-Lite 3.0 was supposed to ship yesterday. It didn't. I'm starting to suspect these are vaporware.

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