@lalitk I suggest trying an external DAC with Vault, you should hear noticeable improvement over its internal DAC which is decent at best. May be consider a NOS DAC like Border Patrol,
By chance you happen to own the BP dac now? I ask because I’ve been trying different NOS R2R chip dacs past three years. Interesting you mentioned the BP. I recently ordered the SE-I model for rotation, periodically. We’ll see how it goes.