Yeah it could definitely be the chain. I’m using the Modius, which I understand to a warm leaning DAC. Curious, what are you using?
Topping E50+Schiit Magni Heresy (Mac/Spotify)
Topping E30+JDS LAB (PC/anything)
Topping E70+Topping A90D (CD Player/Spotify)
One more setup...but it's not in the same cathegory as these above.
(Several headphones)
Hmm. It's all about likings, as you said. I really wouldn't know what to recommend because, as I said...I am a music lover, not an audiophile. Music matters to me; I see things about sound as a nice reward, a great reward. But I can get used to any sound, almost any...unless something really is not right.
Perhaps the key might be in DAC; as you said, its warm leaning. Perhaps combo is not the best. Perhaps DAC is the reason for lacking dynamics? I didn't prefer bass with the E50+Heresy combo; not with every song, but many didn't work as I would like. I changed the cable (original VDH D-102 MK III), and suddenly the bass was better.
I am not the person to write much about sound : ) Final impression, perhaps, but in detail, absolutely not. I can write more about music. That's where I am more focused. But maybe you should give A90D a bit more try before returning it.
I like A90D, the whole package, and the sound.
Cheers!
P.S. If you look at the thread "Show us your Head-Fi station", and how many people are active and with vast collections of stuff, you would have the impression that hundreds will answer when you ask for help, recommendations, or advice. But most of the time, it is one or two or none...hm, that's sad.
I wish you luck that you find what you are looking for.