Randall Diavlo RD50 Cabezal y GabineteThe RD50H is a two-channel, master volume head that features a clean and simple layout. From left to right on the front panel, you have Gain and Volume controls for the dirty channel, a Gain control for the clean channel, and then a shared four-band EQ (Bass, Middle, Treble, Presence), and a global master Volume. There are two pushbuttons on the front panel, as well: a channel switching button that allows you to toggle between clean and dirty, and a boost button that affects both the clean and dirty channels. A standby and power switch round out the front-panel controls.The back panel has a (shared) reverb control, two speaker outs, an effect Send and Return, ¼” jack for the optional footswitch, as well as a standard IEC power cable jack.Let’s get to the good stuff on the inside. The Diavlo boasts two JJ EL34 power tubes as well as four 12AX7 preamp tubes. Any doubt don't hesitate and feel free to comment below lml