Yes, the low mids and high bass hasn't changed at all. The only thing that's changed is the upper mids have been brought forward a bit, in the 1500 - 2400 Hz range, to make the freq. response flatter overall. Also the speaker is slightly more efficient. But take these points lightly...When you A/B the 522PT and the 533PT, it's a pretty subtle difference. Keep in mind that the subwoofer, amp, 5.25" driver, tweeter, and cabinet are all exactly the same. It's going to be more noticeable to people with a more sensitive ear.
Cheers,