ive emailed tech@profile and sales@profile and both of them rejected my email, i got a yahoo mailer daemon reporting they didnt like my IP, so rejected my emails. just trying to find out about my amp, if thye sent it or not. anyone else had any problems with them? profilecaraudio.com -- theyre cheap, but hell. 50 bucks for a monoblock 400watt amp, ill try it. why not.. i tried the mach5 for 50 and am **** pleased. lol