General
Tube amp heads are the rule rather than the exception when it comes to heavier styles of music. While some offer 100 watts of power, they are rarely used at anything near full volume. These days, almost all amp heads are available in more compact versions that are not only much lighter, they're a lot cheaper too. Randall's RD20H is a perfect example, offering 20-watts of raw tube power. Featuring 2 channels as well as a boost function, you'll be able to get brutal overdrive for some serious shredding or a pure, clean sound for those quieter moments in your songs.
Randall RD20H: small size, big sound
With two 12AX7 tubes in the preamp and two 6V6 tubes in the power amp, this Diavlo produces 20 watts of unadulterated tube sounds with all the warmth and compression you'd expect. There's an FX loop so that you can connect your favourite effects pedals to customise your sound. The FX loop and both channels can be controlled via the included foot switch. If you're looking for a fully-functional, compact tube amp head, then the 20-watt Randall RD20H Divalo matches your requirements.