Interconnect recomendations, ~$500 new or used, RCA...

@pmboyd Specifying your equipment is essential for making this thread educational for others. Please do post those details. 

And it could be helpful if you post your sensibilities too.  Of course a lot of that naturally comes through along with the associated equipment.

CEC TL-51 belt drive redbook transport to a Synergistic Research Resolution Reference Active digital cable feeding a MHDT Orchid tube dac using NOS Western Electric 396a triodes and a HifiTuning Supreme Cu fuse, Exposure 2010S integrated amp with a HifiTuning Supreme Cu fuse to Analysis Plus Ovel 9 speaker cables feeding Merlin Audio MMI bookshelf speakers with Master RC Network and Cardas jumpers. From an audiophile power outlet with a single High Fidelity Cables MC-0.5 power conditioner installed, a Virtual Dynamics David power cable (soon to be replaced with a Shunyata NR V-10) feeding a PS Audio Juicebar with Audience p.c.s to everythin else.  Audioning interconnects between dac and amp. 

PS. The Exposure integrated has a passive preamp section, yet is a satisfyingly dynamic amplifie. Great prat and naturalness. Not a detail monster, however (I find too much detail distracting and annoying). The MHDT Orchid dac, utilizing the legendary Philips 1541 chip, is R2R and  also very natural sounding. .

Nice. Thanks @pmboyd 

Have been very curious about that dac.  Starting my 10 day demo of an AM Tubadour tomorrow.

Last week I tried a pair of Wire World Eclipse 8 ics between my Tubadour dac and pre and am very impressed.It seems to be eliminating noise that I wasn't aware was there.Details that were vague are now very clear.The old saying about a clear pane of glass pretty well describes it.Everything is better from top to bottom without favoring any particular frequency.
I'm now in the process of trying a second set of ics and several of their power cords,but won't hijack your thread:-)