I have always used quality surge protectors for my critical electrical equipment. But I got hiss in my tube amps. It wasn't that bad sitting on the side, but up close, and especially when I plugged a mic into my amp, it was awful. It can be anything, my fridge, turntable, stereo, fan. Some connectors are better than others, but I can only isolate some of them. I first looked at a more expensive voltage regulator, but concluded that maybe it's not worth betting on perfection. Given that the voltage regulator is above 600, the choice is not difficult. I don't run a recording studio. All of my audio equipment, stereo receiver, cassette deck, turntable and two amplifiers are connected to it. but now it's much harder to hear it even if it's on the mic. I wasn't looking for perfect silence, just cleaner. The best and most useful device I have ever bought for my audio equipment. Even my turntable (a repeat offender in the hum department) is noticeably quieter.
Fellowes 10-Outlet Metal Split Surge Protector - 1,250 Joules, 6ft Cord in Black and Silver
12 Review
π©οΈ APC Ethernet Surge Protector for 10/100/1000 Base-T Ethernet lines with ProtectNet (PNET1GB)
11 Review
Black 6 Outlet Surge Protector Power Strip with Rotating Flat Plug, 15A 120V, 4ft Cord
12 Review
BESTTEN Wall Outlet USB Charger: Surge Protector with LED Night Light, 4 USB Ports, 6 AC Outlets - ETL Listed, White
12 Review
Extender Xiaomi Mi Power Strip 6 CXB6-1QM NRB4025CN, 6 outlets, 10A / 2500 W white 1.8 m
27 Review
Extender Xiaomi Mi Power Strip 3, XMCXB01QM, 3 sockets, C/C, 10A / 2500 W white 1.8 m
30 Review
Xiaomi Power Strip Surge Protector 3 Sockets 3 USB Black
26 Review
Tripp Lite TLP1008TEL 10 Outlet Surge Protector Power Strip with 8ft Cord, Tel/DSL Protection, RJ11 and $150,000 Insurance - Silver
12 Review