i just got a pair of jbl synthesis amps for 1000

just wondering if anybody knows the quality of these .model s400 and s650.could not find alot of info on these.hoping i got a decent deal but not sure.the s650 is 130x5 and the s400 is 200x2.any info at all will help me out greatly
awesome amps. I have the s650. It's a powerhouse and very dynamic. sounds like you got a great deal!