Hi guys
My first tsa 4700 lasted well over 3 years and has started to play up a bit lately , I can't knock it's performance vs price, I imagine these units are putting out about 350w in to 8 ohms, so if you want killer sound pressure level i would suggest a more expensive product, I am happy enough with the past performance to have bought another, and would consider buying something in this range again, its light and compact and paired with a 1 u crossover, you can get a tidy system to drive four seperate speakers in a 3 u case that will not break your back.
Cheers