This Noiseless Power Supply for Trinity is specially designed to run K&K's Trinity and Trinity Pro preamps. Regular power supply adapters have a 60 Hz hum, but this power adapter has a noise suppression filter to eliminate that hum. It works on all voltages from 110 to 220 volts and comes with US prongs. Just use a travel adapter anywhere else in the world.
Works with Trinity and Trinity Pro preamps only. This power adapter supplies the correct voltage to power the Trinity microphone without noise. With this specially designed noiseless power supply, you can save batteries PLUS get better performance out of your preamp's circuit. To connect, simply hook the preamp up to the power adapter's 9V battery clip, instead of the battery.