I had 530, 570 and 580 for a short time between selling my Martin Logans and buying a new pair of KEF R700. I would say the 570 was the best value and sounded the best. No, you don't get full bass from these things but what you get is tight tuneful bass. Everything sounded very good in a nearfield setup. Quite shocking for the money. I paid like 900 for a pair in cherry and I thought I got a bargain.