Sean Sinha

Most of them will do rated at 14.4V. Hifonics doesn't give a birth sheet with any of their amps, I don't believe, but these particular models typically can do rated, or damn close to it, at 14.4V.

Oh, different amps can have different sound signatures, for sure. S/N Ratio is a factor, as are THD and other factors.

If by weak, you mean they do more than their rated power and don't overheat, I have to agree. Or, are you expecting a four channel amp to drive your subwoofers, or something? no i mean weak as in they are awful amps. You're the first person I've had hate on those Pioneer GM Digital amps. For the money, what four channel amps are better? I mean, it sounds better than my ZX350.4, which costs more. Find me a $200 amp that can outperform it, I am interested. I also need it to be as small as the Pioneer and class D. Thanks! no need to find one, the mb quart would be better and its cheaper... get over it this amp is terrible. i never bad talk products but im sorry, this one is just plain awful MB Quart is a Maxxsonics amp and I had one two generations go. There is no way the MB Quart outperforms the Pioneer. Seeing as how I've had both, I speak from experience.

In reality, he should get speakers that shine either way. I think Infinity will fit the bill and run well without an amp and when he gets an amp, they'll truly shine. Alpine Type E and Type S components are very nice for the money.

You said your HPF was set to 80. If you have your HPF set to 80 and your LPF on an amp set to 80, that's not right. Set your HPF to 120 and your LPF to 80. You can do either. You can either disable the HPF/LPF setting on your HU and have your amps do it all, or you can set it by your HU and turn the crossovers on your amps off. This is especially helpful if you don't have test tones to set your crossovers on the amp correctly. To test, I'd disable the crossover on your amps and set your HPF to 120 on the HU and your LPF to 80 on the HU. See if this cleans up your speakers.

You said your HPF was set to 80. If you have your HPF set to 80 and your LPF on an amp set to 80, that's not right. Set your HPF to 120 and your LPF to 80.

Set your HPF to 120 and your LPF to 80. See if that clears up the mids at all.

Believe it or not, those Sony's might be struggling with 80Hz, try 120HZ.

True. Infinity sound good w/head unit power and don't require much power to sound clean. Only problem is that you soon find Infinity lacks on the low end and require a subwoofer for accurate bass, but the mids and highs are sweet.

This is the Clarion I am talking about. Sweet little amp designed by Robert Zeff: http://www.sonicelectronix.com/item_22642_Clarion-XH5410.html

If by weak, you mean they do more than their rated power and don't overheat, I have to agree. Or, are you expecting a four channel amp to drive your subwoofers, or something? no i mean weak as in they are awful amps. You're the first person I've had hate on those Pioneer GM Digital amps. For the money, what four channel amps are better? I mean, it sounds better than my ZX350.4, which costs more. Find me a $200 amp that can outperform it, I am interested. I also need it to be as small as the Pioneer and class D. Thanks!

If by weak, you mean they do more than their rated power and don't overheat, I have to agree. Or, are you expecting a four channel amp to drive your subwoofers, or something?

I also like the Clarion Class D 4-Channel that was designed by Zapco's founder. They are around $260-270 at Sonic, I believe. Only problem is they have a fan and I run my amp under my seat, so there'd be a constant hum, so I went with the Pioneer. By the way, the Pioneer was run at 90% deck volume for about two hours on a 90 degree day and was just a bit warm to the touch. It never distorted.

That might be a diagnostic mode. Not sure. See if the manual says a blinking power light means anything.

LOL. Thats gotta hurt. Not really. I got an amp that has local warranty support and is brand new, rather than some unwarranted, used amp from somebody I don't know, that I'll have to wait a week for.