I am a long time user and admirer of Rick's cables; including several Virtual models to the CT-1 and CT-1E ic's and speaker cable. A friend introduced me to the CT-1 about a year ago. The cables helped transform his system into a musically accurate representation of the venue. I had not ever heard reproduced organ sound this real. I purchased a used pair of CT-1 ic's, which improved my systems overall performance; most notably, bottom end, inner detail and imaging.
My friend's system required balanced ic's, bringing him to try Hidiamond cables. He went for a full loom, including P4 power cables, D3 balanced ic's, and D8 speaker cables.
While his cables were breaking in I auditioned a CT-1E speaker cable. I experienced gain issues, so Rick shipped a high gain version. It worked noticeably better, with great frequency extension, detail, staging, and tonal accuracy, with the quietest background I had heard; but the system lacked impact, density, and most importantly...musical involvement. I still felt wanting.
I eventually went all Hidiamond, except for one CT-1 ic from preamp to amp. It is hard to describe, only to say I have gone weeks without wanting to make any changes. For me that is a revelation. My system has never been more musically involving, with no lack of detail. Front to back, and side to side imaging has created a layered 3D effect producing the illusion of an instrument's full weight and body. The speakers disappear.
I need to emphasize that this is in my system in my room. I do not suggest this cable, or any cable is the be-all-end-all of cabling. From the threads expressing success with High Fidelity one would think no need to look further, but fortunately I did...and so far I am once again caught up in the music.