My Yggdrasil sounds nothing like you describe. It’s a very fine sounding DAC. Very lively and dynamic, with good bass.
I had an original A1, and then upgraded to A2. Both sounding similar, but the A2 is more refined. The bass is not significantly different between the two.
Perhaps the DAC might not match up well with your amplifier? I see you’re going straight from the DAC into your amp. Have you tried an active preamp?