BillFitzmaurice.info

Hi

I m selling my Crown XTi 1000 because it is unable to power 2 Jacks 12 without going into distortion. I read a post where (i guess Ron K) explain why these I class amps could have problems reproducing the lows. Anyway, I tested it myself: the jacks can handle more lows and more SPL in general. The crown xti 1000 seems a small amp for 2 jacks.

So, I will wait until the new Peavey IPR is available. the one with DSP, that comes with waves maxx bass.

My question is:

Do you think that the maxx bass processing could work well, to lower the response of the jacks, in that particular cases where one have to place the rig away from any boundaries?

In theory, I can see only benefits of using maxx bass:

-increased bass response
-no room modes (at least where maxx bass is acting)
-increased power availability
-less stress for the drivers

I understand that, for the psycoacoustic effect to work, the harmonics that are produced artificially have to be well dispersed. And that is not a problem with the jacks.

Has anybody tested maxx bass on a bass guitar rig yet?
Any cons?

Thanks!

you had issues with an xti1000 and only 2 jacks? you must like it louddddd. I would have thought the xti would be fine, esp if you have a preamp.

miguelbassi wrote:Hi

I m selling my Crown XTi 1000 because it is unable to power 2 Jacks 12 without going into distortion. I read a post where (i guess Ron K) explain why these I class amps could have problems reproducing the lows. Anyway, I tested it myself: the jacks can handle more lows and more SPL in general. The crown xti 1000 seems a small amp for 2 jacks.

So, I will wait until the new Peavey IPR is available. the one with DSP, that comes with waves maxx bass.

My question is:

Do you think that the maxx bass processing could work well, to lower the response of the jacks, in that particular cases where one have to place the rig away from any boundaries?

In theory, I can see only benefits of using maxx bass:

-increased bass response
-no room modes (at least where maxx bass is acting)
-increased power availability
-less stress for the drivers

I understand that, for the psycoacoustic effect to work, the harmonics that are produced artificially have to be well dispersed. And that is not a problem with the jacks.

Has anybody tested maxx bass on a bass guitar rig yet?
Any cons?

Thanks!

It's called high current recovery. Basically these amps store power to unleash it at high demand time. However when the demand stays high for an extended period of time they no longer store energy and basically start running out. The result is reduced output and sometimes it moves the amp into protection a lot sooner then normal operation.Move up to the I techs or QSC PLXs etc.and that problem goes away but so does your hard earned cash.

Old iron will suffice under those conditions but not without added distortion. Distortion or not they will keep running. You could always just up the ante and buy a bigger XTI. Some of the QSC users say the GXs dont suffer from this problem. I cant comment as I haven't ever used one. The Peaveys do but they still sound good. I think the PeaveyIPR sounds better then the Crown XTIs when pushed hard but I think the Crown Macros blow them both away in sustained output and sonic ability. They also make great anchors!

Do you think that the maxx bass processing could work well, to lower the response of the jacks

I'm not sure but everything I hear about maxx bass is it doesn't have the same fatiguing principals like exciters do. If that's the case I'd say yes it should do nicely. Perhaps Jeff Babcock could chime in as I believe he has played with them quite a bit in the past.

Ron, thanks a lot for your quick reply

Tomorrow I will do a test using the maxx bass plugin with 2 jacks and will let you know how it performs. I have my rig in a big and well designed studio, so it s ok for testing.

So... you say the IPR has the same high current recovery problem? I m really interested in getting the IPR with DSP (maxx bass), also because it s a lightweight... maybe I should buy a bigger model (3200 i guess)

Regards

miguelbassi wrote:Ron, thanks a lot for your quick reply

Tomorrow I will do a test using the maxx bass plugin with 2 jacks and will let you know how it performs. I have my rig in a big and well designed studio, so it s ok for testing.

So... you say the IPR has the same high current recovery problem? I m really interested in getting the IPR with DSP (maxx bass), also because it s a lightweight... maybe I should buy a bigger model (3200 i guess)

Regards

The IPR does on sub duty and when pushed hard but it sounds better at those limits then the XTIs and I'm a die hard Crown guy.I would probably attribute this to the IPRs use of DDT compression which I have always thought was a very good circuit. It's extremely musical.I'm not a Peavey guy at all but I call em as I hear em and the IPR is a keeper.My one buddy now has 8 of them and he's gettin more. Peavey still has delivery problems due to very high consumer demands on these items.

IMHO the XTI comes with a kick ass DSP and if you need to use them on sub duty I would be looking 2 to 3 times the rms rating of the driver in power if you want to maintain headroom and run subs hard.

miguelbassi wrote:I m selling my Crown XTi 1000 because it is unable to power 2 Jacks 12 without going into distortion.

I'm driving 4 Jack 110's with an XTi1000 with no distortion at all. I don't understand what you are hearing. What preamp are you using?

jswingchun wrote:

miguelbassi wrote:I m selling my Crown XTi 1000 because it is unable to power 2 Jacks 12 without going into distortion.

I'm driving 4 Jack 110's with an XTi1000 with no distortion at all. I don't understand what you are hearing. What preamp are you using?

I think a more appropriate question would be what drivers is he using in his Jacks. If they're Delta Pro 12s or 3012HOs then I can see where the XTI would be a bit shy on those boxes since the XTI would be 275 at 8 ohms.

Ron K wrote:

jswingchun wrote:

miguelbassi wrote:I m selling my Crown XTi 1000 because it is unable to power 2 Jacks 12 without going into distortion.

I'm driving 4 Jack 110's with an XTi1000 with no distortion at all. I don't understand what you are hearing. What preamp are you using?

I think a more appropriate question would be what drivers is he using in his Jacks. If they're Delta Pro 12s or 3012HOs then I can see where the XTI would be a bit shy on those boxes since the XTI would be 275 at 8 ohms.

Hi again
I m using an Alembic preamp. And I m 100 % sure that it is not distortion in any other part of the chain except for the crown.

The crown goes into overload, producing an horrible sound. It doesn t sound as normal distortion. It s like a broken sound. What Ron describes makes a lot of sense to me, because it starts to happen when driving the amp hard for a long time. (The amp is being used in bridge mode with a 4 ohms load)

The Jacks are 2512 loaded.

I tested them today with an Xti 2000 and everything went fine

I also made a little test with maxxbass on the rig and it sounds interesting... more to investigate on the subject...

I'm thinking perhaps its just a faulty amp. 1400 watts is a good amount of headroom for the jacks with the 2512s....

sine143 wrote:I'm thinking perhaps its just a faulty amp. 1400 watts is a good amount of headroom for the jacks with the 2512s....

Thinking that 1400 watts is enough is true. Unfortunately, it doesn t behave like a faulty amp. It only makes this strange overload noise when pushed hard for a while. I don t have another xti1000 to compare to. As I said, xti2000 is ok.

I've got basically that same rig - Alembic F1-x, XTI2000, into 2 Jack 12's with 3012HO's. Its been run pretty hard at a couple of outdoor gigs recently with no problems at all. Sounds pretty damn fine too.

raytsmith wrote:I've got basically that same rig - Alembic F1-x, XTI2000, into 2 Jack 12's with 3012HO's. Its been run pretty hard at a couple of outdoor gigs recently with no problems at all. Sounds pretty damn fine too.

I agree. Xti2000 is a good match for 2 x Jack 12´s if you want nice headroom.

miguelbassi wrote:

raytsmith wrote:I've got basically that same rig - Alembic F1-x, XTI2000, into 2 Jack 12's with 3012HO's. Its been run pretty hard at a couple of outdoor gigs recently with no problems at all. Sounds pretty damn fine too.

I agree. Xti2000 is a good match for 2 x Jack 12´s if you want nice headroom.

For a live instrument headroom is always a real plus. You could try a PV IPR but the only difference I think you'll hear is it wont sound as bad when pushed to the limits. Again I would be looking for some headroom and get the 3000. The 1600 might work without distortion at war volume but I think I would want to try one out first before buying it. Maybe a local music store has one you can try?

Ron K wrote:

miguelbassi wrote:

raytsmith wrote:I've got basically that same rig - Alembic F1-x, XTI2000, into 2 Jack 12's with 3012HO's. Its been run pretty hard at a couple of outdoor gigs recently with no problems at all. Sounds pretty damn fine too.

I agree. Xti2000 is a good match for 2 x Jack 12´s if you want nice headroom.

For a live instrument headroom is always a real plus. You could try a PV IPR but the only difference I think you'll hear is it wont sound as bad when pushed to the limits. Again I would be looking for some headroom and get the 3000. The 1600 might work without distortion at war volume but I think I would want to try one out first before buying it. Maybe a local music store has one you can try?

Hi Ron

Sure. I m waiting for the IPR 3000 DSP. I ve just talked to sweetwater, and they will have them in october. And they need the payment now in order to reserve one... So I m about to do so.

It s impossible for me to try one before buy, as I am in Argentina... these peavey amps will be here maybe next year. MAYBE

But I think the IPR 3000 will give me that usefull headroom we are talking about. And the DSP options will be usefull too. What do you think?

I really like the IPRs use of Peaveys DDT compression. It's an extremely musical compression. I believe this setup will not only rock but will provide you with clean articulate bass with tons of headroom. If you slap or pick heavy this setup should be very true to form.I think it's a stellar choice.