7lbs. Amp?????? WOW

[Haysus]

Does anyone have any experience with the DSP of the IPR's?

[Benj Ross]

No DSP here, but I run a IPR1600 on tops and 3000 on subs and have been very happy. I am a Peavey dealer, but I will be the first to admit there are some products they sell that are crap. I will be picking up some more 1600's for monitor duty soon.

My only, only complaints are that there is a faint hiss in the tweeters no matter what setting the amp is at. Not generally a problem, but for a wedding setting it might not be that great. Second, the passthrough on the amp is affeccted by the postion of the crossover switch. I cannot run a mono signal from my board into my tops amp with the crossover engaged and run it through to the subs amp too. I use a crossover and will be upgrading to a VSX26 soon so it not a problem, but in an ideal world...

Cheers,
Benj

[osse]

I had actually some really weird experiences when messing around with it earlier... I were trying to set the limiter according to plans and sent a 60 hz wave throught the system for measuring and setting limiter... I've done this many times before with my PV3800 amp without problems but when I did it this time something were crazy.

I can't relate it to have something to do with the IPR tho, except I've never had problems before letting the IPR into the signal chain...

when putting the 60 hz sine wave into the system something were really freaking out, and it was OBVIOUSLY not the IPR, as I tried it with 2 other amps and the problem were the same... It was like the prolbem were in the DRPA or the outputs of the computer soundcard(Note I have NEVER had this problem prior to IPR). I actually have two different generators and the craziest part is that when playing the sound(which have worked perfectly before) throught winamp, there seemed to be really unpredictable peaks going out from the soundcard(or the DRPA) that made it impossible to set the limiters correctly.. the other generator worked from time to time... sometimes it was stable, sometimes not.

So I could never really dial the limiter correctly for the amp, what was strange was also that the amp was very unpredictable when it came to RMS output, sometimes I could dial as high as 200 vRMS! sometimes it was just 0.1 vRMS! I don't really know what the problem was... but I hate to not be sure about these stuff as it could smoke my two 450€ 3012lf in a sec if something went wrong...

I guess this i a part in searching for the perfect sound..

[88h88]

when putting the 60 hz sine wave into the system something were really freaking out, and it was OBVIOUSLY not the IPR, as I tried it with 2 other amps and the problem were the same... It was like the prolbem were in the DRPA or the outputs of the computer soundcard(Note I have NEVER had this problem prior to IPR). I actually have two different generators and the craziest part is that when playing the sound(which have worked perfectly before) throught winamp, there seemed to be really unpredictable peaks going out from the soundcard(or the DRPA) that made it impossible to set the limiters correctly.. the other generator worked from time to time... sometimes it was stable, sometimes not.

So I could never really dial the limiter correctly for the amp, what was strange was also that the amp was very unpredictable when it came to RMS output, sometimes I could dial as high as 200 vRMS! sometimes it was just 0.1 vRMS! I don't really know what the problem was... but I hate to not be sure about these stuff as it could smoke my two 450€ 3012lf in a sec if something went wrong...

I guess this i a part in searching for the perfect sound..

I had a similar issue this weekend, I suggest you try another multimeter/voltmeter as the one I was using was putting out massive massive power, the same 200+ volts you were getting. A trip to the shop for a new meter and all is well. Hopefully you've figured this out already!


As for the Peaveys Benj, can you explain your audio routing to me? I'm having trouble following what you're doing with the signal from your board to your amps. Thanks.

[Benj Ross]

I run mono from the board into a Deq2496 into a crossover and out to my amps. No limiting right now. I was supposed to have my VSX26 (peavey's speaker management system) months ago, but the backorder keeps getting pushed back.

On the IPR there is a 1/4" "through" on each channel of the amps so you can run the signal from one channel to the other. On the Crown XTI's the through out is pre DSP. On the IPRs if you have the "subwoofer" switch engaged on the back of the amp the signal sent from the Though out is lowpassed as well. It is the same if the Highpass switch is engaged.

If you are refering to the hiss, it is there regardless of what equipment I use. Ihave used Mackie boards, allen and heath, dj mixers etc. Always when I connect these amps to my speakers there is a small hiss. Like I daid before, not the end of the world, but I still hear it. I also get a faint hiss from my Impulse 12D speakers. They are powered by the same IPR amp technology.

I think that answers your question.

Benj

[88h88]

I was just interested in the signal routing, I wasn't aware the IPR had an option to kick a signal 'through'. So using this feature you could hook up 2 or more of these to run multiple subs? Just loop the signal cable out of the first and into the next one?

I also have a faint hiss on my tops but they're running off an oooooooold power amp which cost me £20 so I'm not complaining.

[Gregory East]

Does anyone have any experience with the DSP of the IPR's?

I googled up the specs when these hit the news and it was a "close but no cigar" deal as I recall, much like the cheaper processing Crowns.

[el_ingeniero]

I looked up the specs on the Peavey IPR DSP, and I couldn't find any mention of a limiter.

[BrentEvans]

I looked up the specs on the Peavey IPR DSP, and I couldn't find any mention of a limiter.

They have DDT limiters which prevent the amps from going into clip. The DDT algorithm is very musical, but not configurable.

The DSP in the IPRs really isn't very useful... not worth the price difference (which is not trivial). I like the standard versions very much, and coupled with a good DSP, they are a great choice.

[Chris Betancourt]

I looked up the specs on the Peavey IPR DSP, and I couldn't find any mention of a limiter.

They have DDT limiters which prevent the amps from going into clip. The DDT algorithm is very musical, but not configurable.

The DSP in the IPRs really isn't very useful... not worth the price difference (which is not trivial). I like the standard versions very much, and coupled with a good DSP, they are a great choice.

On the DSP what did you find that was not that usefull I know that they cannot be controlled with a laptop which I like alot with the xti and iNuke. But if they do cut freq. quite well its a plus and more for monitoring by having more control. Buying an outboard DSP for monitors spending rockets it.

[BrentEvans]

On the DSP what did you find that was not that usefull I know that they cannot be controlled with a laptop which I like alot with the xti and iNuke. But if they do cut freq. quite well its a plus and more for monitoring by having more control. Buying an outboard DSP for monitors spending rockets it.

Well.. the IPR3000DSP is about $150 more than the IPR3000. Considering there's no limiter, and limited EQ, it's good for being your crossover, and that's about it. For a typical tops/subs arrangement, you'll still need a decent EQ (it's not just about system tuning, it's about feedback control) and a limiter... so you might as well buy a DriveRack type product... considering you can get the DCX2496 for less than $300 (or the DEQ2496 if it's a monitor application), you break even at two amps... and then if you go bigger than two amps, you're far in the clear... plus you have more capability, and its easier to keep your processing at FOH if you want.

Of course it all depends on your needs. A DJ who runs one or two amps... the onboard DSP can simplify things... but still with no limiters, the IPRs' DSP is, well.. limited.

[Chris Betancourt]

I was verifying in the specs and only has the DDT instead of a limiter. I always like the DDT but its not a limiter. But for those small live sound bar gigs would be a good option the DSP but for those large events non DSP with outboard DSP is a must and one of my big rigs I use the SAC. I asked because I thought there were a bigger problem with the DSP that kept you away from it. Peavey made a change from IPR1600, IPR3000, IPR4500, IPR6000. Now its IPR1600, IPR3000, IPR5000, IPR7500!!! what happened here?? I guess at last minute they boosted for larger wattage to beat the XTI, iNuke, etc....

[AntonZ]

Peavey made a change from <snip> IPR4500, IPR6000. Now its <snip> IPR5000, IPR7500!!! what happened here??

Inspired by Behringer
(EP2500 -> EP4000)

[Dave Non-Zero]

I'm gettng really fed up with the peak power ratings of amps. It's so difficult to find the RMSratings sometimes.