PRS Hendrix Circuit HDRX20 20W Amp Head


The PRS HDRX 20 captures the flexibility, power, and balance of late
60’s British-inspired tone in a lower wattage package. The PRS HDRX 20 features a newly-documented “Authentic Hendrix” Touring Circuit. This circuit is heavily inspired by one of Hendrix’s personal amps, purportedly used at Woodstock, which Paul Reed Smith and PRS Amp Designer Doug Sewell were able to study in 2018.

Designed to push the high-end so it is very clear, but not so much that it’s harsh, the PRS HDRX shines without glaring and allows for aggression that can be backed off for smooth, sweet tones. The PRS HDRX 20 is driven by two 5881 power tubes. Chosen for their lower power, smaller size, and organic voice, the 5881 tubes bring thick but articulate tone that drives well and breaks up beautifully in this lower-wattage amp.

The PRS HDRX 20 features a 3-band TMB tone stack, 2-way bright switch, high-mid gain switch, and presence controls. These features mirror the historic amp and give players flexibility and increased control of their tone. The PRS HDRX 20 is also designed with internally bridged channels with individual treble and bass volume controls. This eliminates the need for a jumper cable (historically used on the outside of the amp) and allows players to dial in their distortion level and tone more easily by blending the lead and bass channels’ individual volume controls, bringing more modern convenience to the amp. The addition of a Master Volume control on the HDRX 20, a new feature for HDRX amps, is another modern convenience. Players can use the Master Volume to control the power amp section of the HDRX, making it more user friendly for players who do not want to add a volume attenuator to their setup.

In stock

SKU: AMHEHD_U2M5-ST Categories: , Tags: , , , , , UPC: 825362093862



Available Configurations Head Only
Wattage 20
Global Controls Presence, Master Volume, Bass, Middle, Treble, Mid Gain (off/on)
Channel 1 Controls – Bass VolumeChannel 2 Controls – Treble Volume, Bright (off/bright)
Inlet Fused Power Inlet (IEC)
Bias Adjustable (accessible bias monitor jacks and adjustment potentiometer)
Extension Speaker Jacks 2×4, 2×8, 1×16
Covering Black Tolex
Panel Black Tolex
Piping Black
Power Tubes 5881
Preamp Tubes 3x 12AX7
V1 Input
V2 Cathode Follower
V3 Phase Inverter
Amp Width 17.25”
Amp Depth 9”
Amp Height 9”
Amp Weight 27.6 lbs
For more options check out our Guitar Amps

Additional information

Weight 12 kg


PRS - Paul Reed Smith

Paul Reed Smith

This passion for quality affects not only the work habits of individuals but also the structure of the whole company. Paul Smith: “We’re not organized like other companies. Every PRS craftsperson is a self-contained quality control ‘department.’ They have a lot of authority over their work, and if a guitar falls short in any way, they don’t pass it on to the next stage, and they make that decision themselves. They hand guitars back and forth all the time, and they inspect everything over and over. It’s like an old European guild or a shop. There’s a constant ‘is this good enough?’ conversation out there on the factory floor. So the quality control begins at the workbench. It’s not something we overlay or tack on. It’s an integral, organic part of the process, beginning with design and materials selection and going through every single step in construction and testing.”


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