Item #1575756 Model #108456::ST--:

PRS HDRX 20 20W Guitar Amp Head Black


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Vintage-inspired tone and modern conveniences in a lower-wattage design.

The PRS HDRX 20 guitar amp head captures the flexibility, power and balance of late-’60s British-inspired tone in a lower-wattage package. It features a newly documented "Authentic Hendrix" touring circuit, 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 HDRX 20 shines without glaring, and allows for aggression that can be backed off for smooth, sweet tones. It 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.

The HDRX 20 includes 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 you flexibility and increased control of your tone. It is also designed with internally bridged channels with individual treble and bass volume controls, eliminating the need for a jumper cable and allowing you to dial in your distortion level and tone more easily by blending the lead and bass channels' individual volume controls. The addition of a master volume control on the HDRX 20 is another modern convenience—you can use the master volume to control the power amp section of the HDRX, making it more user friendly if you do not want to add a volume attenuator to your setup.


  • "Authentic Hendrix" touring circuit
  • Clear high end and smooth, sweet tones
  • Two 5881 power tubes
  • 3-band TMB tone stack, 2-way bright switch, high-mid gain switch, presence controls
  • Internally bridged channels with individual treble and bass volume controls
  • Master volume control