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Thump12 / Thump15 Loudspeakers: Rear Panel Features continued...
However, if the OL LED is blinking frequently
or continuously, turn down the level control on the
Thump loudspeaker or turn down the signal at its
source (e.g., the mixing console) until the OL LED
blinks occasionally or not at all.
7. Low EQ
This control provides up to 6 dB of boost or cut below
80 Hz and it is also flat at the center position (U).
This frequency range represents the punch in bass
drums, bass guitar, fat synth patches, and some really
serious male singers.
8. Mid EQ
This is a midrange EQ control that provides 6 dB
of boost or cut centered at any frequency between
100 Hz and 8 kHz. The MID EQ circuit is flat
(no boost or cut) at the center position (U).
This frequency range includes most vocals (male
at the lower end of the range and female at the upper
end of the range), and the fundamentals and harmonics
for many instruments.
9. Mid Freq
This knob ranges from 100 Hz to 8 kHz and
determines the center frequency for the Mid EQ filter.
This allows you to zero in on the precise band of
frequencies you want to have affected by the Mid EQ.
10. Hi EQ
This control gives you up to 6 dB boost or cut above
12 kHz. The circuit is flat (no boost or cut) at the
center position (U). Use it to add sizzle to cymbals,
and an overall sense of transparency or edge to the
keyboards, vocals, guitar, and bacon frying. Turn it
down a little to reduce sibilance, or to remove high
frequency hiss.
11. Suggested EQ Settings
You might prefer a different overall tone depending
on how you will be using the Thump loudspeakers.
They are perfect for general PA use with the 3-band EQ
set flat (all knobs at 12 o'clock). For other common
applications, set the EQ knobs as shown, then adjust
to taste from there.
Final Thoughts
The following pages discuss Thump loudspeaker
placement, protection circuitry, technical information
and much more. Check it out!
Placement
Thump loudspeakers are designed to sit on the
floor or stage. They may also be pole-mounted via
the built-in socket on the bottom of the cabinet.
They are not designed to be suspended.
When pole-mounting Thump loudspeakers, be sure
that the subwoofers are stabilized and secured from
falling over or being accidentally pushed over. For
stacked scenarios, it is highly suggested that straps are
utilized. Failure to follow these precautions may result
in damage to the equipment, personal injury, or death.
Thump loudspeaker cabinets have no rigging
points and are not suitable for rigging. NEVER
attempt to suspend a Thump loudspeaker by
its handles.
As with any powered components, protect them from
moisture and extreme cold and follow the other Care
and Maintenance suggestions below.
Care and Maintenance
Your Thump loudspeakers will provide many years of
reliable service if you follow these guidelines:
•
Avoid exposing the loudspeakers to moisture.
If they are set up outdoors, be sure they are
under cover if rain is expected.
•
Avoid exposure to extreme cold (below
freezing temperatures). If you must operate
the loudspeakers in a cold environment, warm
up the voice coils slowly by sending a low-level
signal through them for about 15 minutes prior
to high-power operation.
•
Use a dry cloth to clean the cabinets. Only do
this when the power is turned off. Avoid getting
moisture into any of the openings of the
cabinet, particularly where the drivers are
located.
Owner's Manual
11
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