I have a Ford 03L. I am puting in Infinity Kappas (4)speakers. I want to put an Amp under the passenger seat. I know it needs to be 4 channel and needs to be small. I have no idea what to buy. I'd appreciate some help. Thanks.
capt. duane,

 

Alpine makes a 40W x 4 that is in a 1.5"x9.5"x2.5" package. That is pretty darn small for a 4 channel amp.

See it here.

 

There are quite a few quality brands that offer more power for the same, if not less money. Some brands you should consider are Autotek, Planet Audio, Hifonics, & US Acoustics. Crutchfield is an excellent company, but their prices are outrageous. The Kappas have a RMS rating of 100 watts per speaker, so you definitly want more than 40 watts...

 

I would look for a 100x4 at bare minimum, you will want at least some head room so maybe look for an amp with even a little more power.

Of the ones that 2trucks listes I would highly recomend the Autotek amps as Im sure many others would too!

As for wiring for the amp get it from walmart, $25 and it will have everything you need. (unless you plan on doing other things, but at least take a look at it)

 

any d class amp d class means that it has a smaller footprint wich is basically the size. I have 801d mtx d class amp pushing two thunder 8000 and it too loud makes a can in the cup holder bounce out if you can imagine tons of bump

 

D class amps are only suitable for subwoofers because of the ungodly noise they produce in the upper frequency bands. On the other hand you could look into a digital amp that uses Tri-path technology and then you will get large power output at clean levels in a small package. Blaupunkt makes one but there are also other companies making them. I just can't recall the companies making them off the top of my head. Just do a search for digital amps and you should find several companies now making them.

 

....another tall tell. Anyone who has been to a competition (SPL, SQ) will call B.S. As long as you dont go with mtx, your stereo will sound great.

 

On the contrary Garrett. I personally competed professionally in IASCA from 1990-1993, I also compted at numerous local shows. Not to mention I have built many top ranked and one IASCA finals winner systems Dave Resmondo 1995 IASCA amateur winner ring a bell?? Not trying to be argumenative but the D class amps are suitable for use even in SQ competition but again this is only for subs. You will see tons of D class amps on the SPL circuit. Obviously you are also not that familiar with MTX either. Thunderforce, MTX's team of competitors, many of whom I am familiar with some I am friends with, do quite well in the SQ competition using MTX equipment. Please do get your facts straight before you go slamming a product. They are actually quite a good product and definitely on par with what someone would look for from a consumer standpoint, which by the way is the majority of the readers in this forum.

 

Chris, Good stuff. I second your motion for people to get their facts straight BEFORE making comments and/or recommendations to others when they, for a fact, don't know what they are talking about. It creates a cycle of misinformation when well-intentioned OR irresponsible contributors say things that are either partially wrong or completely wrong, and then a newbie picks it up and passes it on as fact. While some things are debatable, there are certain things that are not.

 

Man, I thought I was going to have lay it down, but seems you took care of it quite nicely.

However, one little bone to pick. There is one class D that I know of that is suposedly "good enough" to put on speakers (not subs), the Zapco C2k 9.0. Would I do it? probably not because I think one may be able to hear differences, but Zapco calims its "good enough" for speakers.