People have different tastes. I've actually never had the 560s, but it's been described as analytical. Partly why I haven't had much interest in picking one up. The Sony XM3's/4's are... not analytical. I'd also suggest to pay attention to what is driving the 560s. The Sonys are handling everything from digital to analog conversion and amplification. 560s are not, so what you're plugging it into is probably playing a part in what you're hearing.

If you want a lot of bass on open backs, the DT1990's were my favorite open back bass-canons.

That said, if you have time before the return window closes, I'd suggest using the 560s exclusively for a couple of weeks to get acclimated to the sound and listen to a variety of different music. I always find I notice new things even weeks after owning something and daily driving it.