I have a Pioneer Premier 3000SPL with dual 4ohm voice coils in a sealed inclosure. I was planning on running it off of either the 6th channel on my Zapco AG650, or on my Xtant 121M. However I have another Xtant 121M running my wifes 12" Infinity Kappa Perfect, and it sounds great but i think it could use a bit more power (it'* fine for her as it is). Now I am thinking about buying another Xtant 121M so I can run one bridged on each voice coil. Which should I use? The 6th channel on the Zapco, 1 121M, or 2 121M'*? If you think 2 121M'* let me know how it works when adjusting the gains and stuff. As far as I knew the power has to be even on both coils. Let me know what you guy'* think on this subject.

you will have to be VERY careful if you power the sub with 2 seperate amps. I would almost suggest that if you are going to do that, to have the amps output measured and tuned to exact gain levels and such.

I would suggest finding one amp that can power both voice coils

can you post stats on the sub and amps?

Well the sub is rated at 1000w nominal, and 3000w peak. The Zapco AG650 is rated at 50 x 6, but that rating is much lower than it actually puts out. The Xtant 121M is rated at 250w at a 2ohm load, and it is a monoblock amp, but keep in mind this is a far lower rating than it actually puts out also. I have the sub wired in series for a 2 ohm load on the amp. I think I will just try both amps and then decide on whether to get one bigger one. Thanks for the quick reply.

If your sub can handle 1000 nomial, then you at least need to hit that thing with 800 watts. You could even throw 1500 at it while being careful on how you set your gain.

I would go with the two amp set up.

Well I just read the manual with the sub and it says "Pioneer recommends that this speaker be used in conjunction with amplifiers whose continous (RMS) output is lower than the nominal input power of this speaker" which is 1000w. I don't know I think I will try the Zapco first then the Xtant to see what it sounds like. If that sounds like crap I may try two Xtants.

that is a very big generalization on the extra 500 watts, not all speakers/subs could handle that.


I would suggest alteast 500 watts to power the sub but it isn't necessary

[/quote]I would suggest alteast 500 watts to power the sub but it isn't necessary



So then technically I would probabally be ok running the Zapco'* 6th channel which delivers probabally around 450w to a 2 ohm load that I am running? It would be nice to run just one amp instead of two. It makes for a much cleaner install. I just hope it dosent underpower the sub.
I did test the sub on both amps with my Ranchero and they both seemed to pound it the same. However in that application I was not able to hear the sub in a trunk. I had to have it sitting outside next to the truck. Therefore it was very difficult to tell which would be the best. I basically did this to test the amps and make sure they worked. THe only other amp I have left to choose from is an older Kenwood KAC-729S 600w (max probabally) amp. This is what I used to have pushing the Infinity until I got the Xtant'*. It sounded excellent on my 2 Infinity Reference 12'* in a bandpass box, but ever since I went to one sub (the Kappa) it hasen't seemed like it'* putting out as much. It may be due to the fact I am only using one sub though. They say 2 subs is double the bass compared to one.

myself just to be the cautious person that i am i would run the 6th channel because 450 watts in that sub will sound good no matter how you look at it and if its not good enough just bridge 2 channels?