I made the post on the amp quality. My post was in regard to subs with balanced inputs, I stated that most amp quality in active subs was about $80 and that many active subs have very short warranty on the sub amp. These statements are true in most cases but not all and were made in regards to the % of active subs on the market with high quality amps (not many). I won't get into which type (passive/active) sub is better because there is no real answer so the buyer must do their homework. Building a sub would be a great project for you Slappy, there are many kit's on the market and most can come with pre built cabinet if you have no woodworking skills...you will not need a crossover if you are going to use the one in your pre/pro. My sub is a large passive (Vmps) and can be orderd as a kit. I drive it with an Onkyo M-504 amp that puts out 325 watts into it's 4 ohm load. This sub is the bottom half of my Large Vmps Supertowers which I also sometimes use as subs for a three sub setup. Hope this is more clear, there are many good active subs on the market from high-end companys that use good amps...there are just many, many more who don't.
Dave
Dave