20W tube amplifier head from the HDRX series, HDRX-20 Head.
- Circuit design inspired by British amplifiers from the late 1960s
- Two internally linked channels
- Three-band EQ and Presence control
- Bright and High-Mid Gain switches
- Integrated Master volume control
The PRS HDRX 20 is a 20 W tube head inspired by late 1960s British-style amplifiers. Its “Authentic Hendrix” Touring Circuit is based on the study of one of Jimi Hendrix's personal amplifiers, aiming for a dynamic response, creamy midrange, and clear treble that maintains definition without sounding shrill.
Its two channels are internally linked and feature independent volume controls for bass and treble, allowing for blending without the need for an external cable. It includes a three-band EQ, Bright switch, High-Mid Gain switch, Presence, and Master volume, delivering everything from clean, characterful tones to British-style crunch and saturation.
- Tube guitar amplifier head
- Part of the PRS HDRX family
- Power: 20 W
- “Authentic Hendrix” Touring Circuit
- Sound inspired by late 1960s British amplifiers
- Two internally linked channels
- Bass Volume control to adjust the bass channel level
- Treble Volume control to adjust the treble channel level
- Allows blending both channels without an external link cable
- Master Volume control for overall level adjustment
- Three-band EQ with Treble, Middle, and Bass controls
- Bright switch to enhance high frequencies
- High-Mid Gain switch to add gain and presence in mid-high frequencies
- Presence control to adjust the response of mid-high and treble frequencies in the power stage
- Preamp tubes: 3 x 12AX7 / ECC83
- Five outputs for external speaker cabinets
- Two 4-ohm outputs in parallel
- Two 8-ohm outputs in parallel
- One 16-ohm output
- Bias adjustment with external measurement connections
- Black Tolex covering
- Width: 43.82 cm
- Height: 22.86 cm
- Depth: 22.86 cm
- Approximate weight: 12.52 kg
HDRX
The PRS HDRX series features amplifiers and speaker cabinets inspired by the British sound of the late 1960s. Its design is based on a circuit inspired by one of Jimi Hendrix's personal amplifiers, developed by Paul Reed Smith and designer Doug Sewell. This family is known for delivering clear treble without harshness, balanced bass, and a dynamic response capable of transitioning from smooth, clean sounds to powerful, expressive saturation.
Our Opinion
If you're looking for that classic British tone with open crunch, characterful mids, and responsive pick attack, the HDRX 20 is an especially compelling choice. It works very well for blues rock, classic rock, psychedelia, and styles where you want to control saturation via the guitar's volume knob.
What we like most is the ability to blend the two internal channels: you can use the treble channel for definition and add the bass channel to add body without losing clarity. Additionally, the Master volume allows you to achieve preamp saturation at more manageable levels than a vintage British amp with high power, though it remains a head with enough volume for rehearsals and small gigs.
EAN13: 0825362095101








