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Front Panel Controls and Connections
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Inputs 1 and 2: 1/4-inch input jacks (L and R). When using a mono signal, plug into the L jack
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XLR Input 3: This XLR input is designed for low-impedance microphones or equipment that has a Mic-
level, balanced output. (not intended for line level signals, as distortion may occur.)
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Volume control for Stereo Inputs 1 and 2 and XLR Input 3
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Digital Signal Processing: The DSP Select button allows you to choose Room Reverb, Hall Reverb,
Chorus & Reverb or Delay & Reverb
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The DSP Level allows adjustment of the level of effect for Inputs 1 thru 3. In addition, the DSP Master
Level maintains an even balance over the individual preset effect levels.
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Stereo Line In: This ⅛-inch jack is used for connecting any external audio source. The volume of the
input is controlled by the Line In control. This input is post EQ, pre Hi Shelf and Low Notch. If using a
mono TR cable, the two signals are summed together.
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Headphone Jack with Volume Control: This is a ¼-inch stereo output jack. It combines the inputs from
your drums, Mic Input (post EQ, pre High Shelf and Low Notch), and Stereo Line In.
For silent practice, turn Sub Level all the way down and disconnect Satellite Speakers
Warning – excessive volumes levels can damage/impair hearing
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Equalization Section: These control the overall tone of the KAT HD400 Drum Amplifier.
Low: This controls frequencies centered at 60 Hz with a +/-12 dB sweep.
Mid: This controls frequencies centered at 800 Hz with a +/-12 dB sweep.
High: This controls frequencies centered at 10 kHz with a +/-12 dB sweep.
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Hi Shelf: Tailors the high frequency response to tame harsh and unruly cymbals sounds and snare
attack. Centered is FLAT. Turn counter-clockwise to reduce high frequencies produced by the horn.
Turn to clockwise to increase these frequencies.
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Low Notch Filter: (100 – 450Hz) Use the low-notch filter to pinpoint low end frequencies that may need
to be lowered or reduced to work in the room environment you are in. Different rooms will reflect the
sound in ways that may bring out low end that is unwanted or too much. You can sweep through the
low end frequencies with the FREQUENCY knob and reduce by up to -10db using CUT. Turning the
CUT knob all the way to the left defeats the Low Notch Filter.
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Sub Level Control: Volume for the sub that will assist you when dialing in the desired amount of low end
to accommodate the room's acoustic environment
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Power Indicator Light: Indicates that the power switch is in the "ON" position.
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