Which is better, Tianlong Tennis 603 or 802?

603 and 802 are completely two styles of sounds, but there are many similarities in their bass. Similarly, the intermediate frequencies are all close to 80 1, but the high and low frequencies are very different.

603 is a heavy boxing style, with a little loud and strong.

603 is thick and not fine enough. I am still optimistic about the 802 with this advantage. 802 is much looser and sweeter.

802+ balanced card unbalanced mode +PS 500 sounds much clearer than 603+PS 500 at first glance, with thin lines, but the sense of music seems to be not as good as 603.

The sound field of 603 is not as big as 802, and the sound is not as soft as 802, that is, it doesn't sound as natural and comfortable as 802.