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dB300a REAR PANEL
1 MIC LEVEL – Used to adjust the volume of the
microphone input.
2 AMP / CLIP LED - Dual color LED lights Green when
amp is active, flashes Red when the amp is clipped
or stays Red indicating the amplifier is in protect
mode.
3
LINE LEVEL – Used to control the level of the line
input.
4
LOW FREQUENCY - Controls the low band
of the Channel Equalizer, +/- 12 dB at 100Hz.
5
HIGH FREQUENCY - Controls the high band of the
Channel Equalizer, +/- 12 dB at 10kHz.
6 OUTPUT SWITCH - This switch is used to select the sig-
nal that is sent to the Line Output. When the switch is in
the up position, the signal on the Line Output is exactly
the same as the signal on the Input. When the switch
is in the down position the Line Output carries the MIX
of the Mic and Line Inputs, as well as the High and Low
Equalizer and Low Filter.
7 LOW FILTER SWITCH - When engaged, a Low-cut
filter is employed at 80Hz with a roll-off slope of 12
dB per octave.
8 LINE INPUT CONNECTOR - Combo XLR plus 1/4 inch
Input for connecting balanced or unbalanced line
level signals.
9 HEAT SINK - Convection cooling of the internal power
amplifier via massive aluminum extrusion.
10 POWER – Switches on the dB300a’s main power.
11 AC POWER INLET – Connect the supplied standard
IEC AC power cable here.
12 LINE OUTPUT - Male XLR connector used to link
multiple dB300a’s.
13 MIC INPUT CONNECTOR - XLR Input for connecting low
impedance microphones to the Low-Noise pre-amp and
Phantom Power.
14 PEAK LED- Red LED illuminates when the Mic input
receives a clipped signal.
dB300a Layout
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dB300a Rear Panel Layout
ENGLISH
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