Which Would You Choose?

Tubes are out. Don't want to deal with tubes and the heat.

Looking at used Audioquest Niagara 5000.

A speaker upgrade I agree with but like what I have.

Update.

Furman Elite 15 DMi

Bought this to replace my old Monster 3600 MKII. Got the Furman new for $362 on Amazon.
Because we live rural and have our own transformer to supply power to our house I thought this was good enough. I looked at many options costing up to $6K used.

Our voltage is pretty steady at 120-122 monitoring it with the Monster unit. The Furman confirmed this. Rarely it will be 119.

The Furman improved my TV picture and helped dynamics for the stereo. I like that it displays the voltage and the amps being used. Everything is plugged into the Furman and the highest amp draw was 4.2 while streaming music.

My system isn't on a dedicated circuit but it is the only thing on that circuit. I believe this helps.

Happy with the Furman.

Also changed speaker wires to Canare 4S11 bi wire.