Best path to upgrade my source


I am a new start up in the stereo world. At present I have an Audible Illusions pre, 200 watt tube mono's, dynaudio 1.3 mk 11'S, and a highly modded marantz cd67se. I would like to upgrade the front end source. I am on a tight budget, and I'm considering either a Benchmark dac1 or Naim cdi or meridian 506. I prefer acoustic, soft jazz, and mild rock and roll. My listening habits revolve around detail and immediacy as my 53 year old ears have heard better. Any suggestions?
optimationman
That is a tuff question.. You can purchase various levels of mods directly for both units...
querida10@yahoo.com,
What kind of mods have you performed on your current unit? Also have you heard of the Zhaolu D 2.0 DAC? There's a lot of discussion about this $109 unit on other audio sites. Just do a google search and see what I mean.. It is designed so you can swap out the Dac chip and the Op Amps very easily. I haven't heard it, but considered buying one just for the hell of it. In audiophile world $109 is chump change! LOL

While your there checkout that $20 battery powered Dac in a box. Is that crazy or what? :-)
Mel,
Regarding your Lavry; Pop yur top, look yourself.
What do you see? A EMI MESS.
Auditioned? lol... MANY.
Information?.... A whole bunch.
Hit me with a private email, And I will help you unleash the performance within. looking forward.

Anthony
Mel, I forgot to add:
You mentioned "Any old transport will do?"
It would depend on the answer of; "Does the music really matters?"
Anthony
Anthony,

I've looked inside and don't find anything there that is surprising. There is nothing I can hear on a pretty revealing system that indicates an EMI problem. It is extremely quiet. (Specif. at -109db minimum not weighted)

I can't believe you have any experience with this DAC. If you want to prove me wrong why don't you share your advice with everyone, not just me privately. Let us know how you can improve this DAC. Perhaps then I can forward it on to Dan Lavry for his comments.