Gallien-Krueger 2001RB Benutzerhandbuch - Seite 11

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Front Panel Controls

Input: A standard ¼" input jack to plug in active or

passive basses using a shielded cord

-10dB PAD: Input attenuator button. The button is

generally left out, except in cases when the clip LED

flashes. This switch should be pressed if the CLIP LED

stays on continuously. It may be necessary to pad the

input when using a bass with active electronics or very

high output

Clip: This LED lights yellow when the input is being

overdriven. If -10dB PAD (2) is pressed and clip LED

still stays lit, turn down the volume on your bass.

Tuning Mute Button: Set this switch to 'ON' (In)

when tuning up. This switch mutes all outputs from the

amplifier (speaker, direct, and balanced outs) so you

can tune up without sending signal to the audience,

speakers, or the P.A. system. Tuning Mute can be

footswitch controlled which will leave your hands free

to tune your instrument. To control Tuning Mute by

footswitch, the 'Tuning Mute' switch on the 2001RB

must be in the 'OFF' (OUT) position

Channel A/B: Switches between the Normal and

Overdrive channels. When in the 'B' (In) position, the

switch activates 'Channel B' (Overdrive). 'A' (Out)

position activates 'Channel A' (Clean). In order to use

the footswitch to control the channel switching,

Channel A/B should be in the 'A' (out) position

Gain: Controls the amount of overdrive in the 'B'

channel. At low settings it provides a smooth distorted

sound. At high levels it will provide full saturation with

long sustain

Edge: Treble control for the Overdrive channel.

Bottom: Bass control for the Overdrive channel.

Level B: Adjusts the output level of the Overdrive

channel

Level A: Sets preamp gain after the input stage. It is

used in conjunction with the input pad, to optimize the

amplifier's headroom

4/5 String Bass: Switching this button to the 'ON'

position, voices the pre-amp for basses with 'B' tuning

(5 string). Leaving it in the 'OUT' position will voice

the amp like the 800RB, for a four string bass

2001RB

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Contour: Drops the mid-range frequencies while

boosting lows & highs

Presence: This adds edge and definition to higher

frequencies

Treble: Boost and cut at 7kHz+14dB shelving type.

Add or remove edge and definition

High Mid: Boost and cut at 1 kHz +6dB -10dB, 'Q

Optimized' band pass type. Works on lower string

harmonics, and effects the punch of your sound.

Low Mid: Boost and cut at 250Hz +6dB -10dB, 'Q

Optimized,' band pass type. This adjusts the main body

of your sound

Bass: Boost and cut at 60Hz +10dB, shelving type.

Controls low end push

Boost: A post EQ gain stage using G.I.V.E. technology

which adds 'growl' as it is turned up

Tweeter: Master volume control for the 50W tweeter

amp

Tweeter Hi-Cut: Cuts frequencies above 10kHz,

producing a more 'cone-like' (less harsh) sound from

the tweeter

Woofer: Master volume control for the woofer (Main)

amp

Woofer X-Over: Press this button to engage the

electronic crossover for the woofer. This cuts

frequencies above 5kHz

Power Switch/Protect LED: Turns the amplifier on or

off. Should a problem occur during operation press this

switch out first. The power LED should green at this

point or flashing orange if a fault is present. The LED

flashes at turn on for five seconds during power up.

The LED turns blue when the amp is ready to play.

Should the amp experience a fault (over heat, over

current) the amp will mute and this LED will flash

orange until the condition is corrected. This LED turns

green when the power switch is turned off. When using

two or more 2001RBs in a master/slave configuration,

the power LED on the slave amps will be orange. The

LEDs will turn blue when the master amp is turned on.

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