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Randall RD20H Diavlo 20W Tube Guitar Head Black 

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  • Power: 20W tube
  • Two footswitchable channels (Clean and Overdrive), plus boost
  • Two 6L6 power tubes
Description & Specs
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Two channels of heavy-metal thunder for the studio or practice.

The Randall RD20H 20W amp head provides all the spine-crushing tube-driven tone of its bigger brothers, but in a size you can use at home. It features two footswitchable channels (Clean and Overdrive) with a volume boost, and shared four-band EQ and master volume. Each channel has independent gain controls, and the Overdrive channel has an independent Volume control.Around the back of the ruggedly constructed head are dual speaker outputs, speaker-emulated XLR output for direct recording or feeding directly to a house PA, an FX loop and the tone complement of two 6L6 power tubes and four 12AX7 preamp tubes.


  • Power: 20W tube
  • Two footswitchable channels (Clean and Overdrive), plus boost
  • Two 6L6 power tubes
  • Four 12AX7 preamp tubes
  • Footswitch included
  • Speaker-emulated XLR output
  • FX loop
  • Dimensions: 19.7” x 9.5” x 8.5”
  • Weight: 26.5lb.
Customer Reviews

Review Snapshot®

by PowerReviews
RandallRD20H Diavlo 20W Tube Guitar Head

(based on 2 reviews)

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Reviewed by 2 customers

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(2 of 2 customers found this review helpful)


Randall RD20H


from Tulsa,Ok

About Me Experienced

Verified Buyer


  • Easy To Use
  • Excellent Sound
  • Good Warmth
  • It Is A Great Amp
  • Portable
  • Powerful


    Best Uses

    • Events
    • Home Studio
    • Performances

    Comments about Randall RD20H Diavlo 20W Tube Guitar Head:

    I have seen and heard the Diavlo RD 45 on YOTUBE but I decided to try the RD20 to see if it would satisfy me. The RD20 is a great amp, it has an incredible clean channel, plenty of gain and it is very articulate. And the foot switchable boost is a big plus.

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    (2 of 4 customers found this review helpful)


    Awsome amp

    By Lonesausage

    from New Orleans, Louisiana

    About Me Novice


    • Easy To Use
    • Powerful


    • Limited Functions

    Best Uses

    • Performances
    • Professional Recording

    Comments about Randall RD20H Diavlo 20W Tube Guitar Head:

    This is a pretty solid amp head! It can get very loud for a 20 watt which is good if your performing in small places or recording. I got this amp because of people telling me it had high gain and since I play everything from Avenged Sevenfold to Motionless in White I needed something with some heavy gain. I wasn't necessarily dissapointed at the amount of gain in the amp but I wish it had a little more. Don't get me wrong it has a lot but the gain is more suited for hard rock and old metal like Metallica. If you play more on the heavy side like heavy metal or metalcore then I would recommend getting a distortion pedal but other than that the amp is pretty good on gain. What really suprised me about the amp was how good the clean channel sounded. Usually amps with good gain do not have a good clean channel but this amp sounded nice and warm. The clean even has its own gain so you can have a little crunch in your clean. The only other thing I would say I did not like particularly about the amp is that it has no affects on it. Pretty much the basic gain, bass, middle, treble, presence, and master. This is an easy fix if you get an effects pedal but i guess i"m just picky. I have this amp hooked up to a Kustom 4x12 and playing a dean signature Dave mustaine. Overall I would say this is a pretty good amp very forgiving if you mess up and I would recommend this to anyone who likes things on the heavier side.

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