I have the Zenith Mk3 and added the Phoenix re-clocker to it with excellent improvements that were/are very noticeable. Definitely worth consideration, and you might want to take this step before a DAC upgrade.
I also upgraded my DAC from a Mytek Manhattan II to a Holo Audio May3 DAC and that has proven to be a wise move. Read the dedicated thread about the May DAC for more details and testimonials on this great product.
I am enjoying the best digital sound I've ever experienced, and while I know it's not equal to (my) analog sound, it's as close as I've ever heard. So good, in fact, that I often forget I'm playing digital music.
I also upgraded my DAC from a Mytek Manhattan II to a Holo Audio May3 DAC and that has proven to be a wise move. Read the dedicated thread about the May DAC for more details and testimonials on this great product.
I am enjoying the best digital sound I've ever experienced, and while I know it's not equal to (my) analog sound, it's as close as I've ever heard. So good, in fact, that I often forget I'm playing digital music.