I use a 33 foot Redmere for my video processor to projector run. I had to do this because another 23awg Beldon cable wasn't working. Though, I don't know about using Redmere for short run or audio purposes.
That being said, I recently discovered that a lower cost Beldon cable was not performing properly. A 5 foot Beldon Series FE cable that is supposed to be "Premium certified" to support 4K and 18Gbps bandwidth was actually smearing the sound when just using 1080p resolution and normal old compressed dolby digital. I'm was originally using this Neotech cable:
I went back to using this and it removed all the smeared audio effect. Audio was crystal clear using this cable. It's only just a "HDMI 1.4" certified cable, but it still is sonically superior to the Beldon.
One thing I have figured out here is that silver/silver-plated makes a significant difference for digital/hdmi cables. The Wire World stuff may be better than my Neotech, but I haven't felt a need to go that direction yet.