6. Input
Plug your guitar in here. Always use a good quality screened guitar
lead.
7. Valve Viewing Window
Through this grille you can see the ECC83 valve at the heart of
your pedal.
WARNING:
Do not attempt to remove the fixing screws or grille.
No user serviceable parts inside.
8. Effect On/Off LED
When the RED LED is on the pedal is on. When the LED is not on
the pedal is off.
9. Effect On/Off Switch
Press this switch to turn the effect on or off.
10. AC Inlet
For the input of the 16V AC / 0.8A adapter supplied. Always use
a Blackstar approved adapter.
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Controls
1. Boost
The Boost knob controls the amount of gain boost that is applied
to the guitar signal. At low levels, a boosted clean sound will be
achieved and your amp will sound more dynamic and full. As the
Boost control is increased the amplifier will start to overdrive and
the resulting distortion will be rich in valve harmonics and
compression.
2. Bass
The tone circuit on the HT-BOOST is known as a ‘cut and boost’
circuit. As the name suggests this allows a range of frequencies
to be reduced (i.e. cut) or increased (i.e. boosted). Turn the control
towards the ‘-’ to cut the amount of bass, or towards the ‘+’ to
increase the amount of bass. Importantly, when the control is set
to ‘0’ the amount of bass is neither cut nor boosted.
3. Treble
Similarly, the treble control adjusts the amount of cut or boost that
will be applied to the treble frequencies of your tone. Turn the
control towards the ‘-’ to cut the amount of treble, or towards the
‘+’ to increase the amount of treble. Importantly, when the control
is set to ‘0’ the amount of treble is neither cut nor boosted.
4. High Output
This output is designed to be connected directly to the input of
your all valve amplifier and provides a level of output dynamics
unavailable in any other booster. Always use a good quality
screened guitar lead.
5. Low Output
This output has a lower level output and is designed for
connection to the input of other pedals or the input of a solid state,
digital or hybrid amplifier. Always use a good quality screened
guitar lead.
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