those are pretty old bro, that 540x2 was one of the very first amps i ever had (when i was 15, lol) 
they aren't "good" but i guess if you can get it cheap enough, go for it. they sure do look cool. 
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Offical dealer for the following-
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PAC
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i have a power acoustic 500x2 powering my 2x JL 12w0's.  pretty old but sounds amazing, but that might just be the subs.  Plus the fact i paid 50$ for the whole setup makes it sound a lot better.  If you just have it sitting around i say why not put it in?  you can always hide it if you are embarassed by it lol
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i love power acoustik cheap but yet powerfull enough to make your ears ring

click sig for my car audio videos
 
 
omg i didnt know it was ancient . i took it from one of my friends i didnt know how old it was. but is their a way to can take it to circuit city or a stereo place and they can check it for me. my friend said its spose to light up blue is that true? im new too all this. i might just give up and buy a car thats already done. 
www.Myspace.com/louigirlxo
 
yes, it lights up blue.
just hook it up and see if it works
--------------------------------------------------------------
Offical dealer for the following-
SOUNDSTREAM
DB LINK
DB DRIVE
PANASONIC
GARMIN
ROSEN
SCOSCHE
XE DESIGNS
SOUNDGATE
PAC
LITEGLOW
 
why spend loads of money when if its works use it. it may be a oldie but it could turn out to be a goodie

 my buddy also has the same brand that are almost 7 years old still working great.
 
 
also i need advice on speakers for my doors and ones in the back. and i think a sub soo help me out im new to the sound thing. right now i just have a decent cd player and i have a box in my trunk i think its just speakers soo i think ill be needing a new sub and door speakers and rear ones i heard alpine and pioneer ones are alrite ?
www.Myspace.com/louigirlxo