They do make optical HDMI cables, but that is for people with projectors at are more than 20ft away.
People with 10,000cuft rooms etc.
It's not something a normal person needs.
If they are talking SPDIF, that's a 90's era technology dude. That doesn't support HD7.1, and certainly not DTS:X or Dolby Atmos. It maxes out at Dolby 5.1 or PCM 2-ch, VHS/DVD-era.
Originally Posted by nycmat
I went into a store to purchase a monster surge protector and the salesmen was trying to sell me a fiber optic cable for sound hard. I said no.
SurgeX is one of the top shelf surge suppressors. It suppresses almost unlimited surge energy. https://www.ametekesp.com/surgex/hom...eater-120-208v
Most of the Monster, Furman, Panamax etc use parallel MOV's which die after the first blast of lightning in a storm (not only that, they let 600volts through STILL), SurgeX is designed to handle a minimum of 1000 6000V strikes without failure of the device or the protected load, and 100's of thousands of strikes at slightly lower voltages. 0V let through.
MOV's work by directing the surge from the hot into the ground (the same ground that the whole audio system uses EEK!
). SurgeX doesn't redirect the surge anywhere, it absorbs it, in opposed magnetic fields and stores any excess in capacitor banks rated for it. Worst-case: for RMS swells beyond half a cycle it actives Omega relays until the utility goes back to normal.
If you want to "condition" the power, I'd recommend a CyberPower or APC online pure-sine UPS.
Stabilizers are ok but they don't protect against sustained brown outs or black outs.
Online UPS's are expensive though, their entry-level puresine line-interactive ones are <$200 on amazon.
(SurgeX also makes UPS's, but I'm sure they ain't cheap.)
The electronics in my Home Theater costs tens of thousands, I only trust SurgeX to protect my UPS's, and the UPS then protects my projector and everything else. I also have multiple whole-house surge suppressors for additional added protection. My internet and TV are optical so no surges can come through that. (I ain't messing around