Operating instructions

OPERATING INSTRUCTIONS PREAMP
1. Input Jack This Neutrik© Combo Connector provides an unbalanced ¼” and balanced XLR input. The ¼” jack is used
for all normal basses. The balanced XLR input is for instruments with balanced outputs.
2. PAD Switch Some instruments have an unusual low output level. If you own such an instrument, it may be necessary to
disengage the -20dB PAD to match the correct signal level with this Preamp. Note that the PAD should normally be engaged.
3 Gain (-6dBu to +60dBu) This control regulates and controls the gain in the whole system. The actual settings for
this control will depend on the output level of the instrument being used.
4 Clip LED Green indicates the correct operational level and red indicates clipping.
5 EQ (On/Off) Switch This switch bypasses the EQ-Section. The Control LED above the switch indicates the status.
6 Bass This adjusts the amount of Bass rates by 40Hz ±18dB. The Bass-Filter is shelving type that provides 6dB per
octave rising or falling curve shapes.
7 Lo-Mid Level This adjusts the amount of Lo-Mid rates depending on the selected frequency. The selectable frequencies
are 110, 300 and 800Hz ±15dB.
8 Hi-Mid Level This adjusts the amount of Lo-Mid rates depending on the selected frequency. The selectable frequencies
are 1.5, 3 and 5kHz ±15dB.
9 Treble This adjusts the amount of Treble rates by 15kHz ±18dB. The Treble-Filter is shelving type that provides 6dB per
octave rising or falling curve shapes.
10 Master Control This sets the signal level of the “TO POWER AMP” outputs. It should be set at -40dB when switching
on the Preamp and turned up to the desired playing volume.
11 Mute Switch Pressing this switch will mute Line out and DI out. Its status is shown on the red LED above the switch.
The mute function is useful when changing instruments or if a tuner is connected to the TUNER out, for tuning up silently.
12 Power Switch This switch is to turn on the unit. The switch will be illuminated when the Preamp power is on.
PREAMP
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