Detail 01
Internally bridged channels
Lets you blend the bass and treble channel volume controls without an external jumper cable.
Product detailSKU #1500000482031
PRSHDRX 20 20W Tube Guitar Amp Head - Indigo Blue
1/8
Independent shopping perspective
The Korena take
Finished in Indigo Blue, the HDRX 20 is a 20W tube guitar amp head using two 5881 power tubes and three 12AX7/ECC83 preamp tubes. The two channels are internally bridged, so the bass and treble volume controls can be blended without a jumper cable. Its tone controls include a 3-band TMB section, Presence, a two-way Bright switch, and a High Mid Gain switch. A Master Volume gives the amp a route to driven sounds at reduced volume without using an attenuator.
Strong match
Who this is for
- Recording or smaller-venue setups where the Master Volume helps manage driven amp sounds.
- Players who want to blend the internally bridged bass and treble channels from the front panel.
- Guitarists shaping brightness, midrange gain, EQ, and presence from a tube amp head.
Consider the trade-offs
When to look elsewhere
- Players looking for a single-channel amp; this model uses two internally bridged channels.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Master Volume
Allows driven tones at lower volume settings without an external attenuator.
Detail 03
2-way Bright and High Mid Gain switches
The Bright switch changes clarity versus a warmer response, while High Mid Gain adjusts midrange gain.
Final check
Know before you order
- 01Speaker outputs are provided as two 4-ohm, two 8-ohm, and one 16-ohm connections.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What is the HDRX 20 power output?
It is rated at 20W.
02Do the channels need an external jumper cable?
No. The two channels are internally bridged.
03Can it produce driven tones at lower volume?
Its Master Volume is designed to provide driven tones at lower settings without an attenuator.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsSound
- Tone Stack
- 3-band TMB
5 detailsPickups & controls
- Channel 2 Controls
- Treble Volume, Bright switch
- Bright Switch
- 2-way
- Channel 1 Controls
- Bass Volume
- Global Controls
- Master Volume, Treble, Middle, Bass, Presence, High Mid Gain switch
- Preamp Tubes
- 3 x 12AX7/ECC83
2 detailsBody & build
- Color
- Indigo Blue
- Available Colors
- Black Paisley, Indigo Blue
3 detailsConnections & power
- Speaker Outputs
- 2 x 4 ohms, 2 x 8 ohms, 1 x 16 ohms
- Power Output
- 20W
- Power Tubes
- 2 x 5881
4 detailsSize & weight
- Weight
- 27.6
- Depth
- 9 inch
- Width
- 17.25 inch
- Height
- 9 inch
5 detailsOther
- Product Type
- Tube guitar amp head
- Channels
- 2 internally bridged channels
- Series
- HDRX
- Bias Type
- Adjustable with monitoring jacks and adjustment potentiometer
- Model
- HDRX 20
