Anybody tried the new Peavey IPR DSP's? - Page 2

bumperbass · #21 11-09-2012, 06:23 AM

I am using the 1/4" input from preamp to channel A, then using 1/4" patch cable to input of channel B, then using the +1-A -1-B config. This should work, huh? I'm checking it out in about 7 hours before the gig so I'd like to know if this works. I've heard it does. Anyway, do you mean XLR to A then T/R/S to B? Will my way work or only your way...balanced only? Thought there was already a polarity inversion with A & B unbalanced inputs that would enable the +1, -1 scenario to automatically work. HELP!

**CL400Peavey** · #22 11-09-2012, 06:43 AM

Run a signal to channel A, jump it as normal to B. Connect pole 1+ on the 'A' channel, and pole 1- on the 'B' channel.

I have been doing this for a few months with my 1600, and I regularly push it hard. No issues.

bumperbass · #23 11-09-2012, 07:48 AM

Quote:

Originally Posted by CL400Peavey

Run a signal to channel A, jump it as normal to B. Connect pole 1+ on the 'A' channel, and pole 1- on the 'B' channel.

I have been doing this for a few months with my 1600, and I regularly push it hard. No issues.

You threw me a loop when you said "XLR". Thanks. That's how I have it now but haven't done a trial run.
I'm using 12 gauge SJ cable, 6 feet. Should be OK.
Thanks again.

4-stringB · #24 11-09-2012, 09:31 AM

Quote:

Originally Posted by CL400Peavey

This is from the Peavey forums.

However the IPR-1600 and IPR-3000 can be configured externally to operate in bridge mode. How? You must parallel, both the 'A' and 'B' input XLR's with an external Low Z 'Y' cable. You then must use two Neutrik Speakon connectors on both the 'A' and 'B' outputs. Pole 1+ on the 'A' channel is positive, and pole 1- on the 'B' channel is negative. Now we're talking...this is what I've been looking for. However, what would the damping factor be at 4 and 2 ohms?AND, is this valid for a DSP? How do you make sure the output is equal from both channels? I know it's a major can of worms, but I want that massive power I'm hearing about...Thanks for your help...

**CL400Peavey** · #25 11-09-2012, 09:33 AM

Quote:

Originally Posted by 4-stringB

Now we're talking...this is what I've been looking for. However, what would the damping factor be at 4 and 2 ohms?AND, is this valid for a DSP? How do you make sure the output is equal from both channels? I know it's a major can of worms, but I want that massive power I'm hearing about...Thanks for your help...

I havnt worried about the damping factor. As far as keeping the levels equal, I max out both attenuators, and control the volume with my pre amp.

What cabs are you planning on using with your bridged amp?

bumperbass · #26 11-09-2012, 09:42 AM

Quote:

Originally Posted by 4-stringB

However the IPR-1600 and IPR-3000 can be configured externally to operate in bridge mode. How? You must parallel, both the 'A' and 'B' input XLR's with an external Low Z 'Y' cable. You then must use two Neutrik Speakon connectors on both the 'A' and 'B' outputs. Pole 1+ on the 'A' channel is positive, and pole 1- on the 'B' channel is negative. Now we're talking...this is what I've been looking for. However, what would the damping factor be at 4 and 2 ohms?AND, is this valid for a DSP? How do you make sure the output is equal from both channels? I know it's a major can of worms, but I want that massive power I'm hearing about...Thanks for your help...

You're using XLR to both channels? How? With a splitter? Please tell me, CL400Peavey, I'm OK with an UNBALANCED 1/4" to chA and a patch to chB?
This is too back and forth.
Thank you.

**CL400Peavey** · #27 11-09-2012, 10:04 AM

Quote:

Originally Posted by bumperbass

You're using XLR to both channels? How? With a splitter? Please tell me, CL400Peavey, I'm OK with an UNBALANCED 1/4" to chA and a patch to chB?
This is too back and forth.
Thank you.

I just use a short 1/4" jumper.

What cabs are you two using?

BbbyBld · #28 11-09-2012, 12:10 PM

The DSP model has a signal routing selection, so you can select mono mode, channel A input only (which parallels the two channels), and not need a patch cable. This should make level matching for bridging much easier, and just set up one signal processing chain.

EDIT: Just to clarify, you still need the special speaker cable to bridge the outputs.

**CL400Peavey** · #29 11-09-2012, 12:21 PM

Quote:

Originally Posted by BbbyBld

The DSP model has a signal routing selection, so you can select mono mode, channel A input only (which parallels the two channels), and not need a patch cable. This should make level matching for bridging much easier, and just set up one signal processing chain.

EDIT: Just to clarify, you still need the special speaker cable to bridge the outputs.

That is really good news. I wasnt sure if the DSP's power management would allow bridging.

I wish I could see one of these in person to see how the interface works. Hard to judge capability from the manual.

bumperbass · #30 11-09-2012, 02:01 PM

Quote:

Originally Posted by CL400Peavey

I just use a short 1/4" jumper.

What cabs are you two using?

I'm using one GK NEO 212-II right now, but want to get another, possibly.
Maybe I'm dense or something, but your post(s) are still confusing. XLR...XLR...then what? Does it have to be balanced from the preamp? All I hear is XLR and 1/4" jumper.
All I'm planning on using is a T/S unbalanced to go to CH A then a 1/4" T/S unbalanced jumper to CH B. If (IF!) you're using a balanced XLR are you using a T/R/S for the jumper to CH B? Sorry if my question was fuzzy. Just wondering if XLR and balanced is necessary to use bridging. I assumed there was a signal polarity built in to the circuitry and the design, which I took to mean I could hook it all up with unbalanced 1/4" T/S all the way.
I've already made my temporary speakon adapter 'Y' cable so I'm good with that.
Thank you!

**CL400Peavey** · #31 11-09-2012, 02:11 PM

Quote:

Originally Posted by bumperbass

I'm using one GK NEO 212-II right now, but want to get another, possibly.
Maybe I'm dense or something, but your post(s) are still confusing. XLR...XLR...then what? Does it have to be balanced from the preamp? All I hear is XLR and 1/4" jumper.
All I'm planning on using is a T/S unbalanced to go to CH A then a 1/4" T/S unbalanced jumper to CH B. If (IF!) you're using a balanced XLR are you using a T/R/S for the jumper to CH B? Sorry if my question was fuzzy. Just wondering if XLR and balanced is necessary to use bridging. I assumed there was a signal polarity built in to the circuitry and the design, which I took to mean I could hook it all up with unbalanced 1/4" T/S all the way.
I've already made my temporary speakon adapter 'Y' cable so I'm good with that.
Thank you!

With that cab, there really is no benefit to bridging anyways. Your cab won't be able to do any thing with the extra power.

bumperbass · #32 11-09-2012, 02:13 PM

I know. I still want to use the feature to try it out. Is my reasoning correct on the unbal hookup?

**CL400Peavey** · #33 11-09-2012, 02:17 PM

Quote:

Originally Posted by bumperbass

I know. I still want to use the feature to try it out. Is my reasoning correct on the unbal hookup?

Yes, just be extremely careful. It's a dangerous amount of power with that cab.

BbbyBld · #34 11-09-2012, 02:18 PM

The channel preamp chain output is unbalanced, so there's no benefit to using a TRS to parallel the two channels on the regular IPR 1600.

bumperbass · #35 11-09-2012, 02:19 PM

Thanks guys. I'm off to the gig!

dukeisdog · #36 11-09-2012, 02:21 PM

Quote:

Originally Posted by bumperbass

Thanks guys. I'm off to the gig!

Wish I had one tonight! Have a good time

Bassmec · #37 11-09-2012, 02:49 PM

How long did the GK 2 X 12 last on the gig at >1600 watts RMS?.
You would have to be unusually reserved about volume to run a rig like that without incurring speaker damage.
I would say that to use that amplifier to its max you will need at least 4 2 X 12 cabs to keep out of speaker compression and farting.
Don't bother reading the cabinet thermal handling, its got nothing to do with anything audio engineering related, it only applies to those that want to use the cabinet for heating purposes, at 600 watts rms that's two coils of wire at a guaranteed 1084 degrees centigrade, toasty!
PS why would anybody want an amplifier with complex built in compression like waves software, when they have already shown that they actually set the compression threshold via their cabinet choice?.

jnewmark · #38 11-10-2012, 07:21 AM

Recently got a 1600 IPR at a ridiculous price and gonna use it strictly as a two channel power amp for pre recorded music, ipod, etc. What are the plus and minuses ( if any ) between using XLR cables from the preamp ? The manual states that the inputs are combo XLR/6.3 mm. What size plug is 6.3 ?

Bassmec · #39 11-10-2012, 08:15 AM

Quote:

Originally Posted by jnewmark

Recently got a 1600 IPR at a ridiculous price and gonna use it strictly as a two channel power amp for pre recorded music, ipod, etc. What are the plus and minuses ( if any ) between using XLR cables from the preamp ? The manual states that the inputs are combo XLR/6.3 mm. What size plug is 6.3 ?

Balanced is less hum and noise than unbalanced so choose balanced if you can can, Its got a balanced 1/4 inch ring tip sleeve jack socket in the middle of the XLR, you can just use guitar cables from the pre amp but they won't be balanced

bumperbass · #40 11-10-2012, 11:46 AM

6.3mm = 1/4". Silly to print it that way.

I used the IPR1600 last night. I'm happy to report that my vibration issues are gone after instituting the 'bumperbass vibration-reduction' modifications.

One channel, even with my 8 ohm cabinet is ridiculously loud enough. I only wanted to try the bridging because, well, I CAN and I already had a speakon cable made up for PA use. This amp was originally in my PA rack.
I'll eventually need a HPF because the Sansamp RPM definitely does NOT have any kind of subsonic filtering in it.
My next purchase will be an IPR1600 DSP and I'll return THIS amp back in the PA rack. I need it's HPF function.
Thanks for all the advise and guidance.
Peace!