In Oct'2013, I changed all my power cords to TWL models 12+ and 8+. For 12+ power cords, I placed them on OPPO BDP-105 and Magnum Dynalab MD-108T tube FM tuner. While 8+ power cords on the integrated amps: 300B Triode SET amp and Solid State Class A amp.
Two months later in Dec'2013, I consolidated my two systems into one, and upgraded all my power cords to TWL 7+ on OPPO BDP-105, Jungson JA-99D Integrated SS amp, Magnum Dynalab MD-108T and Wyred 4 Sound DAC-2 DSDse. While keeping one 8+ power cord on my Energy Veritas VSX-10 subwoofer.
Note: my final system is solid state.
The sound improvement was one that is very musical, natural, complete harmonics with extensions yet neutral without adding any warmth or distortions. My first and immediate impression was how NATURAL the music is, and the texture. Compared to TWL 8+ power cord, their reference 7+ power cords reveals more bass extension and punch and better high frequency extensions without any treble energy usually associated with Solid State setup. Not that it musk the high frequency, but my OPPO BDP1-05 seems more listenable with less hint of electronics nature. Coming from my previous experience with other cables which either focus on certain bandwidth or adds warmth to the sound or amplify the full bandwidth to extract more inner details, creates a heighten sense of ultra fast dynamics and full extensions of frequency ends with an enlarged image..in my experience, this is suitable for a low power 300B SET amp setup which the source, amplifier and speakers near perfect...you'll hear everything: good or bad.
However, system matching is very important. A critical cable whether power cord or interconnects or speaker cables will mercilessly reveals the weakness of a system. TWL cables are revealing yet provides easy matching whether SET tube or Class A SS amps system. I had great success with their power cords, and upgraded to TWL speaker cables. The synergy improves, music is more musical and natural, easy on the ears. If you're happy with your system or before you sell away your gears to pursue the highend nirvana, try upgrading to TWL cables, I'm one of their many satisfied customers who bought their cables without breaking my wallet and yet still be happy to listen to my music. Especially so, if you have a Solid State system that proves to be tricky on finding the right cables. Don't get me wrong, I'm not saying that TWL cables makes poor music better. I could hear the electronic nature of my OPPO BDP-105 and DAC, but when I switched to my Magnum Dynalab FM tubed Tuner MD-108T, I could immediately hear why analog is better. It makes SS more tolerable and enjoyable. I'm so happy with their cables that I've just ordered TWL latest 'Spirit' interconnects!
Jimmy