Master
13. Reverb
The Reverb control sets the overall level of the reverb effect. With the control fully
counter clockwise there will be no reverb. Turning the control clockwise will increase
the amount of reverb.
Reverb decay times can be adjusted for the Clean and OD channels by connecting
to our Architect deep-editing software.
14. Volume (HT-20R/RH MK III ONLY)
This controls the overall volume of your amplifier. Turning it clockwise increases the
volume.
15. Power Switch
This switch allows the reduction of the output stage from full power down to 10%
power. This means the full tonal depth of the valve power amplifier can be enjoyed
at lower volumes, therefore making the HT MK III ideal for recording, smaller gigs
and home practice use. Working in conjunction with the power amplifier voltages,
this method of power reduction suffers none of the loss in tone of other power
reduction systems.
16. Power Indicator Light
The LED will be illuminated when the amplifier is switched on.
17. Power
This switch is used to turn the amplifier on and off.
NOTE: There is no standby switch on these amplifiers. The valves will warm up as
normal and the amplifier will automatically switch to standby mode if either the Input
or Speaker Output jacks are not in use.
Rear Panel
1. Mains Fuse
The value of the Mains Fuse is specified on the rear panel. Never use a fuse of the
incorrect value or attempt to bypass it.
2. Mains Input
The supplied detachable mains lead is connected here. The lead should only be
connected to a power outlet that is compatible with the voltage, power and frequency
requirements stated on the rear panel. If in doubt get advice from a qualified technician.
3. H.T. Fuse
The value of the H.T. Fuse is specified on the rear panel. Never use a fuse of the
incorrect value or attempt to bypass it.
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4. Speaker Outputs
The output marked '1x16 Ohm' is for the connection of a single 16 Ohm extension
speaker cabinet.
The outputs marked '1x8 Ohm or 2x16 Ohm' are for the connection of either a
single 8 Ohm extension cabinet or two 16 Ohm cabinets.
If no connection is made to any speaker outputs, the power amp is automatically
set to Standby mode. Unlike most other valve amplifiers, this is safe to do.
'1x16 Ohm' output
Internal 16 Ohm combo speaker
Internal 16 Ohm combo speaker
X
plus one 16 Ohm extension cab
One 16 Ohm extension cabinet
Two 16 Ohm extension cabinets
X
Single 8 Ohm extension cabinet
X
WARNING: The output marked '1x16 Ohm' should never be used at the same time
as any of the outputs marked '1x8 Ohm or 2x16 Ohm'. Failure to correctly match
the impedance of the amplifier and speakers could damage the amplifier.
5. CabRig Output – Mono Balanced XLR socket
This output provides a balanced, low impedance connection to a recording device,
stage box or mixing desk using a standard XLR cable.
6. CabRig Output - Stereo Line Out / Phones socket
This output provides a stereo un-balanced connection to a recording device or
mixing desk. Always use a good quality screened TRS lead. The stereo jack socket
also accommodates connection of headphones, allowing you to practice silently.
NOTE: Both the XLR and Stereo Emulated outputs remain active even when in
Standby mode. This allows for silent recording or practice when the amplifier is not
connected to a speaker.
7. CabRig Switch
The switch enables you to instantly select between one of the three stored CabRig
patches. This will apply to the XLR, Line Out / Phones and the relevant USB output.
CabRig patches can be edited using Architect software.
Learn more about Architect here: https://blackstaramps.com/architect/
' 1x8 Ohm or 2x16 Ohm' outputs
X
X
X
X
X
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