Since the beginning of this thread is so old, I'm not sure if my contribution is relevant today. BUT, I just had to add my 2 cents about the Texas Star amps. I've been running a DX-500V for a couple of years now and find it to be an excellent sounding, solid performing amp. One of the first things I did was a power wire upgrade, eliminating the piss-poor fuse holders and the dummy diode, I supplied power individually to each board with a dedicated 8ga wire. Same with the ground, so I have 4 wires exiting the rear panel. I terminated them with an Anderson Power Pole connector and use two Megawatt 50A switchers in parallel to keep the necessary number of angry pixies she needs to run. Driving with 35W to 45W PEP this little gem squirts out between 500W and 600w PEP, depending upon the amount of excitement, or anger in my voice. I've grunted 700W out of it a couple of times but won't make a habit of that. Always gets great audio reviews and never gives me any grief. I don't even know if these are available these days but I wouldn't be afraid of them at all.