I own the same vintage of Transparent Reference with XL interconnects, which I bought new from an authorized dealer in 1999, thus making them eligible for the Transparent factory upgrade program. A couple of years ago, I inquired about upgrading them to the latest version and the cost was in the $5k range. Hardly a "minor investment". :)
I am now using the Transparent Reference with XL interconnects in my HT system as I replaced them in my 2 channel system with Synergistic Research Tesla Accelerator and Apex ICs. However, I still find the Reference with XL interconnects to be very good and truthful to the source and do not hear the microdynamics issues you refer to.
As you mention that different AC cords give significantly different results, my bet is that your best opportunity to upgrade your sound quality at a reasonable cost lies in the power arena. Until this is optimized, spending money on "better" interconnects is a shot in the dark.
First, try a SR Teslaplex receptacle with a Tesla T3 or T3 UHC power cord to your amp and a Tesla T2 on your preamp. These are available for "free" (you pay shipping) in-home trials from most SR dealers.
An all-out assault on optimizing your power delivery will require a Powercell 10SE, but the above should give you excellent results for a reasonable price.
I am now using the Transparent Reference with XL interconnects in my HT system as I replaced them in my 2 channel system with Synergistic Research Tesla Accelerator and Apex ICs. However, I still find the Reference with XL interconnects to be very good and truthful to the source and do not hear the microdynamics issues you refer to.
As you mention that different AC cords give significantly different results, my bet is that your best opportunity to upgrade your sound quality at a reasonable cost lies in the power arena. Until this is optimized, spending money on "better" interconnects is a shot in the dark.
First, try a SR Teslaplex receptacle with a Tesla T3 or T3 UHC power cord to your amp and a Tesla T2 on your preamp. These are available for "free" (you pay shipping) in-home trials from most SR dealers.
An all-out assault on optimizing your power delivery will require a Powercell 10SE, but the above should give you excellent results for a reasonable price.