I have a "Minilith" and it is amazing, pure and simple. You can not go wrong with Zed. In fact you would be hard pressed to find a better map at three times the price. Not only is it super clean, in fact the owner of the local car audio store I get to do my installs said it was the cleanest sub amp he had heard. He sells DD, Zapco, Alpine, JL... so he is used to high end product. The amp has extreme clean power with a lot of control. I will only by Zed from mow on, my next install in my new truck will have my "Minilith" and I am buying a Duece for my fronts and a Galdius for the rears. I had been running an old school PPI 4050AM and dotn get me wrong it is an amazing amp that I will never sell, but I want all Zed.
Not only is Stephens product top of the line, his customer service is second to none. I talked with and emailed him on several occasions. You do not get service like that anymore. I can not say enough about him or his product, do yourself a favour call him and buy the amps.
In fact if you get the latest edition of Car Audio magazine (SQ Issue no less) they review the "Gladius", the reviewer said that this amp is in his top 5 SQ amps of all time and is now one of his reference amps for 2 channel amps. You should really get the mag and read the review......hope that helps.