Audiolabyrinth, Furman doesn't change the sound or at least I cannot detect it (i don't listen very loud)/ If anything, bass got more even/musical. Strange thing is that TV plugged into video outlet got better colors, cleaner and more saturated. It is strange since display is digital but perhaps noise induced jitter on video signal adds noise.
Siemens surge arrester plugs instead of double circuit breaker. White hanging wire connects to ground bar. I cut it shorter. It protects by shorting voltage spikes to ground. Protection (most likely MOVs) are installed on secondary side of the breaker. In case of MOVs failure (usually short) breaker will trip - otherwise it provides protection for all circuits. You have to get style that fits your panel. Each whole house protector has specified max size of the breaker (always on secondary side). There are stronger protectors but require some extra space and sometimes extra panel and most likely require an electrician. Lightning is not a big problem in my area but in Sarasota where my mother lived I would install strongest panel style protection and perhaps would even double it.
Siemens surge arrester plugs instead of double circuit breaker. White hanging wire connects to ground bar. I cut it shorter. It protects by shorting voltage spikes to ground. Protection (most likely MOVs) are installed on secondary side of the breaker. In case of MOVs failure (usually short) breaker will trip - otherwise it provides protection for all circuits. You have to get style that fits your panel. Each whole house protector has specified max size of the breaker (always on secondary side). There are stronger protectors but require some extra space and sometimes extra panel and most likely require an electrician. Lightning is not a big problem in my area but in Sarasota where my mother lived I would install strongest panel style protection and perhaps would even double it.