Detail 01
Power reduction switch for 2W operation
Lets the 20-watt head operate at 2 watts.
Product detailSKU #1500000431665
BlackstarHT-20RH MK III 20W Tube Guitar Amp Head Black
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1/5
Independent shopping perspective
The Korena take
HT-20RH MK III is a 20-watt valve head for a cabinet-based guitar rig, with two ECC83 and two EL84 valves. Two footswitchable channels, each offering two voices, cover its channel layout; the overdrive channel adds ISF, and digital reverb is onboard. For direct workflows, CabRig-emulated outputs reach balanced XLR, stereo headphones, and USB. A power-reduction switch provides 2-watt operation, while the effects loop includes a +4dBu/-10dBV level switch.
Strong match
Who this is for
- Stage-to-house-system routing through the balanced XLR CabRig-emulated output.
- Recording directly through USB while using the 2-watt power-reduction setting.
- Cabinet rigs using either two 8-ohm outputs or one 16-ohm output.
Consider the trade-offs
When to look elsewhere
- Speaker configurations other than the listed two 8-ohm or one 16-ohm outputs.
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
CabRig outputs to balanced XLR, stereo headphones, and USB
Provides three direct output types, with a three-way preset selector.
Detail 03
Effects loop with +4dBu/-10dBV level switch
The effects loop includes a selectable level setting.
Detail 04
ISF on Overdrive channel
The patented Infinite Shape Feature is assigned to the overdrive channel.
Final check
Know before you order
- 01Plan for either two 8-ohm speaker connections or one 16-ohm speaker connection.
- 02Use Architect software for deeper CabRig and reverb editing.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can the amp operate at a lower output setting?
Yes. Its power-reduction switch enables 2-watt operation.
02Which direct outputs are available?
CabRig-emulated outputs are available on balanced XLR, stereo headphones, and USB.
03Does the HT-20RH MK III include an effects loop?
Yes. It has an effects loop with a +4dBu/-10dBV level switch.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
3 detailsSound
- Speaker Compatibility
- Speaker outputs for 2x 8 ohm and 1x 16 ohm
- Effects
- Effects loop with level switch for +4dBu/-10dBV
- Effect
- Digital reverb
1 detailsPickups & controls
- Control
- Power reduction switch for 2W operation
2 detailsBody & build
- Color
- Black
- Type
- 20-watt valve head
2 detailsConnections & power
- Outputs
- IR-based CabRig emulated outputs to balanced XLR, stereo headphones, and USB with 3-way preset selection switch
- Input
- Stereo line input
4 detailsOther
- Software
- Reverb and CabRig deeper editing available using our proprietary Architect software
- Feature
- Patented Infinite Shape Feature (ISF) on Overdrive (OD) channel
- Channels
- Two footswitchable channels, each with two footswitchable "voices"
- Valves
- 2x ECC83, 2x EL84
