I also have a Sony "Z" series LCD. I have tried several upgraded power cords and have noticed very minor improvements such as slightly enhanced detail and slightly improved color brightness and richness. The improvement is so slight, I would not spend much money on another cord for this purpose. Where I spent money and noticed a significant improvement was on my HDMI cable. I purchased 2 Wegrzyn Silver HDMI's and was very pleased. Sharper, brighter image with much improved color and detail. Since the HDMI also carries the audio signal, I was greatly surprised and happy that there too was a significant improvement. I have them hooked to my satellite receiver and Blu-ray player. I was previously using Monoprice HDMI's which are certainly a steal for the $ and definitely no slouch but the Wegrzyn is surprisingly better.
Believe me, the HDMI would be the better choice to spend the money but if you have an inexpensive aftermarket power cord laying around, use it too.
Happy listening (and viewing).....
Believe me, the HDMI would be the better choice to spend the money but if you have an inexpensive aftermarket power cord laying around, use it too.
Happy listening (and viewing).....