New system too bright.Will different cables help ?


I recently sold my 10 year old NAD system and upgraded to: Myryad Z140 integrated amp, CEC 3300 CD player, Castle Richmond bookshelf speakers, DH Labs T14/BL1 cables.
I liked the Castle speakers in combination with the NAD stuff, but now the sound is overly bright, I miss musical warmth. The NAD 502 CDP (1bit) connected to the Myryad amp sounded great. After selling it I first tried the Myryad Z110 CD player (matches the Z140), which sounded extremely harsh too me, even after some burn-in time. I returned it and then got the CEC, which in comparison sounded ok.
The resolution and detail of this system is certainly much better.
... But the sweetness and musicality is gone.
My question: Will different interconnects, dedicated power cables/conditioning do the trick, or do I need bigger speakers/subwoofer, tubes, external DAC or even a different amp ?
khm74
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As Tvad suggests, you may find there is nothing you can do to compensate for the component that is causing the brightness. That would be a good place to start.

Having said that, I once owned a Bryston / Thiel combination and loved it except for the brightness. Once I switched my speaker cables to MIT, everything came together. If it's easier to switch out cables than to replace the source of the brightness (or if you like everything about the source except for that), try some MIT's to see if they make a difference -- you can normally try before you buy so there should be no risk if you find the right dealer. I've had excellent luck with Joe Abrams, but don't forget your local dealers.