ABB switch t5s 400 pr221ds-ls//i in 320 4p f f 1sda054340r1 You will find that this low power audio amplifier works with high impedance headphones. byJuly 4, 2026
ABB T5N 400 PR221DS-LS//I IN 400 4P (USED) A nice touch on the PP153 is the raised lip that protects the controls. byJuly 4, 2026
