Radial R1600-PSU 5-Pin Power Supply for Workhorse Power Racks & Firefly

Radial R1600-PSU: High-Current Power for Workhorse Racks and the Firefly

The Radial R1600-PSU is a universal 5-pin external power supply that delivers plus/minus 16V DC at 1600mA (1.6 amps), the high-current feed required by the Radial Workhorse 500 Series power rack and the Firefly tube direct box. It accepts any mains voltage from 100 to 240 volts and ships with the appropriate regional power cord, so it powers your rig cleanly anywhere in the world. When a power supply goes missing or fails, this is the part that brings a professional rack or tube DI back to life.

Why These Products Need More Current

A 500 Series power rack has to feed a full complement of modules at once, and a tube direct box has to light and sustain a real vacuum tube, so both draw far more current than a typical direct box. The R1600-PSU is built for exactly that load, supplying a stout 1.6 amps where lighter supplies would sag. Inside the Firefly, its plus/minus 16V rails are stepped up to the 48 volts the tube's plate circuit needs, so the tube runs in its proper operating range and delivers the warm, dimensional tone it was designed for. Under-power that circuit and the sound suffers; the R1600-PSU gives it room to breathe.

A Secure, Universal 5-Pin Connection

The supply terminates in Radial's universal 5-pin connector, the locking format used on the Workhorse and other rackmount Radial products that require higher current. That positive connection will not shake loose under stage vibration, and its universal design means one supply can serve multiple compatible units. With a worldwide 100 to 240V input and the correct regional cord in the box, it is ready to travel and cross borders on tour.

The Right Replacement for Your Radial Rack

If your Radial Workhorse power rack or Firefly tube direct box arrived without its supply, or the original brick has failed, the R1600-PSU (part number R800 9412) is the factory replacement. It is designed specifically for Radial products that call for plus/minus 16V at 1.6 amps through a 5-pin connector. Before ordering, confirm that your unit uses the 5-pin high-current supply rather than a lower-current 4-pin or barrel type, and you will have your rack back in service quickly.