Warm, rich sounding interconnects?


My system is in flux at the moment with a Wadia Intuition 01 as preamp/amp/DAC bookshelf Tyler speakers and (horror of horrors) an iPhone with an Auris bluetooth connection for the current audio source. Since bluetooth at best sounds somewhat thin and tilted up on higher frequencies, it doesn’t play necessarily well with the Wadia which is great sounding overall but also can be on the revealing side.

I know I should get a better source - but even so I’ll always want the option of wireless in various situations. I’ve owned Purist Audio Museaus’s (rev-c’s) in the past, which would be perfect, but sadly sold them on A-gon some time ago. Those are hard to find and the newer Purist cables are brighter sounding.

So in a nutshell I’m looking for interconnects which will deepen and darken the sound for my current setup - and new/used for under $400. Any ideas?
monsignor
It was like that with Harleys. I owned 2 bikes, one used and another I purchased new because it was affordable. Then in the late 90s and 2000’s every Yuppie, businessman, and poseur wanted in and Harley had to step up production. It became a symbol of status and they had no problem paying the inflated prices for a bike plus accessories.
Now a new Harley can cost $30K to $ 35K. And their bikes are now sitting in the garage.
Or original and even second generation BMW M3. It was never inexpensive but the price was reasonable and it was a real daily driver's car. No, I didn't have it, unfortunately, but I intend to get this vintage one day. Or the original M5.
And I am tired of paying $300 monthly bills for three cell phones. That's over $35k for ten years.
Anyway, I did pay over $1k for a pair of new Purist Neptune RCAs to replace old Colossus. In my modest system the difference was really big. But I am not paying $2k for Neptune speaker cables, not yet, but I will in time, or for older Purist Dominus. After upgrading both the amp and the speakers.
With electorial college and gerrymandering one vote in a swing state is 
worth a hundred in a red or blue one . Democracy is one man = one vote .