12 Labhorns! 6 of them are 5 years old, running off Plx3402's. The other 6 are 4 months old running off of Plx3602's. The New block of 6 were much more powerfull... Much Debate over why?.?. 5 year old drivers?, The Extra 100 Watts per cabinet?, probably a combination of all this. Either Way, Things sounded so good everywhere!!! Non-stop compliments! I defend myself from the mobs of women, by referring them to the genius behind it all, Tom Danley. I say, all I did was cut up some wood and glue it together!