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Average Price: $798
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$300
$801+
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Description
Unleash the beast within with the Randall RD20H Diavlo Guitar Amplifier Head, a compact powerhouse designed to deliver scorching tones and nuanced cleans in a sleek, road-ready package. Whether you're lighting up the stage or carving out riffs in the studio, the RD20H is engineered to inspire. Its all-tube signal path, featuring the classic pairing of 6V6 power tubes and 12AX7 preamp tubes, offers a sonic palette ranging from lush, articulate cleans to aggressive, high-gain overdrive.
The RD20H doesn't just bark; it bites with a selectable boost function, empowering you to punch through the mix with precision and authority during those pivotal solo moments. Coupled with a speaker-emulated XLR direct output, this amp head ensures your tone translates perfectly from the stage to the studio, maintaining its character without the need for a microphone. The inclusion of a Class A Discrete instrument level FX loop means your signal chain remains pristine, integrating your favorite pedals seamlessly.
With its dual-channel configuration and the added flexibility of a 2-function footswitch, the Diavlo head is as versatile as it is potent, ready to accompany you on any musical endeavor. Whether you're a metalhead or a blues enthusiast, the Randall RD20H offers the reliability, tonal diversity, and raw power you need to express your musical vision.
Key Features:
- 2 Channel all-tube (12AX7/6V6) 20-watt head for a versatile tonal range
- Selectable boost for standout solos and enhanced performance
- Speaker emulated XLR direct output with ground lift for clear, direct recording
- Class A Discrete instrument level FX loop for superior signal integrity
- 2 function footswitch included for convenient channel switching and boost activation
Product specs
| Brand | Randall |
| Model | RD20H Diavlo 2-Channel 20-Watt Tube Guitar Amp Head |
| Finish | Black |
| Year | 2010s |
| Categories | Guitar Heads |
| Color Family | Black |
| Electronics | Tube |
| Impedance | 16 ohms, 4 ohms, 8 ohms |
| Number of Channels | 2 Channels |
| Number of Inputs | 1 Input |
| Output Power (Watts) | 20 |
| Power Tube Type | 6L6 |
| Reverb | None |
FAQs
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What kind of tones can I expect from the Randall RD20H for metal music?
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The Randall RD20H is designed for high-gain metal tones, offering a tight, aggressive sound with plenty of punch. Its two channels allow for a range of tones from clean to heavy distortion, making it ideal for metal and hard rock genres.
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Does the Randall RD20H take pedals well?
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Yes, the Randall RD20H is known for handling pedals effectively, especially in the effects loop. This makes it a versatile choice for guitarists who use a variety of effects pedals in their rig.
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Is the Randall RD20H loud enough for gigging?
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With 20 watts of tube power, the Randall RD20H is suitable for small to medium-sized gigs. It provides enough volume to cut through a band mix, especially in venues where mic'ing the amp is an option.
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What are the core tonal characteristics of the Randall RD20H?
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The Randall RD20H offers a tight, focused sound with a strong midrange presence, making it suitable for modern metal and rock. Its 6L6 power tubes contribute to a robust low end and clear high frequencies.
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What are the impedance options for the Randall RD20H?
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The Randall RD20H supports 16 ohms, 8 ohms, and 4 ohms impedance, allowing flexibility in matching it with different speaker cabinets for optimal performance.
Videos
Emil Bringsli
Randall RD20h demo
Reviews
PROS
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Exceptional volume and power for a 20w amp, outperforming even some 50w amps
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Provides "senseless amounts of gain," ideal for metal genres
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Clean channel quality is good, with great distortion capabilities
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Despite its size, delivers a massive, full sound unlike typical mini heads
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Versatile gain channel mixes well with 6v6 tubes for better high-gain representation
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Can achieve club gig volume levels, suitable for live performances
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Unique aesthetic with skulls and devil theme, appealing for certain styles
CONS
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Some may find the amp too focused on high gain, limiting versatility
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High and low EQ balance issues; may lack sufficient low end for some
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Potentiometers (knobs) are overly sensitive, making precise adjustments difficult
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Lacks built-in reverb, a desired feature for some players
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May not be the best choice for those seeking EL34 tube characteristics
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Randall RD20H.
Comparisons
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Some owners feel the 6505+ is superior for metal genres, with more versatile distortion compared to the Randall RD20H.
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The 5150 LBX-S 15 watt amp is praised for improved volume taper, offering great tones at low volumes, making it a strong contender for home practice over the RD20H.
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The RD20H is noted for its darker tone, with some users wishing for more brightness to achieve specific metal tones.
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Mods and upgrades
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Changing speakers and adding an EQ pedal are suggested to achieve unique tones with the RD20H.
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Use cases and applications
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Despite its name, the Diavlo series, including the RD20H, may not excel in metal without additional gear adjustments.
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The Randall RD1H is powerful enough for home use, easily filling a 2500 sq ft space when paired with a 1x12 cabinet.
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The RD20H's clean channel is praised for its quality, making it suitable for genres beyond metal, such as hard rock.
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User experience
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It’s advised to test a used 6505+ before committing, minimizing financial risk if it doesn't suit your needs.
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Owners of the RD1H find it to be a favorite among multiple amps, frequently used despite owning a dozen other amplifiers.
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Known for its high gain channel, the RD20H is recommended for achieving powerful chuggy rhythms, especially with 7-string guitars and low tunings.
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Value and pricing
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The Randall RD1H was available for as low as $149 during sales, making it an affordable option for those considering the RD20H.
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4.5 out of 5
Based on 0 Reviews and 3 Ratings
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
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