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Warning!

This amplifier is capable of producing high sound

pressure levels. Continued exposure to high SPL’s

can cause dameage to your hearing. Always set

the volume at a safe listening level or use hearing

protection if the unit is operated at higher levels.

C A U T I O N

RISK OF ELECTRIC SHOCK

DO NOT OPEN

!

!

C A U T I O N :

WARNING:

TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT

REMOVE TOP COVER. NO USER-SERVICEABLE PARTS

INSIDE. REFER SERVICING TO QUALIFIED SERVICE

PERSONNEL.

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,

DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE

                  The lightning flash with arrow

head symbol, within the

equilateral triangle, is

intended to alert the user to the

presence of uninsulated “dangerous voltage”

within the product inclosure that may be of

sufficient magnitude to constitute

a risk of electitric shock to persons

               The exclamation point within an

equilateral triangle, is intended

               to alert the user to the presence

of important operating and

maintenance (servicing) instructions in the

literature accompanying the appliance.

C A U T I O N :

ATTENTION:

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO

WIDE SLOT, FULLY INSERTED.

POUR EVITER LES CHOCS ELECTRIQUES, INRODUIRE LA LAME LA

PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE

DE LA PRISE ET POUSER JUSQU’AU FOND.

Table Of Contents 

Safety Information __________________________ 4
Quick Start ________________________________ 5
Front Panel Controls ________________________6
Rear Panel Features _________________________7
Sample Settings  ____________________________8
Sound Tips   ________________________________9
Installation and Maintenance _________________10
Tech Talk   _______________________________ 11
Specifications _____________________________12

*All Features and specifications are subject to change without notice 

Please read the Safety Information section on page 4 and installation
instructions on page 12 before continuing. 

Gallien-Krueger 
2234 Industrial Drive 
Stockton, CA 95206 
phone: 209.234.7300 
fax: 209.234.8420 

email: [email protected] 
internet: www.gallien-krueger.com 

Summary of Contents for MB2 500

Page 1: ...MB2 500 OWNER S MANUAL ...

Page 2: ...ur new equipment please contact your local dealer or GK as soon as possible Gallien Krueger Inc 2234 Industrial Drive Stockton CA 95206 phone 209 234 7300 fax 209 234 8420 Internet www gallien krueger com Email info gallien com We wish you a lifetime of good playing and remember to always have fun GK Philosophy I have never seen the point in doing things the way others have done them I also have n...

Page 3: ...the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance C A U T I O N ATTENTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERTED POUR EVITER LES CHOCS ELECTRIQUES INRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSER JUSQU AU FOND Table Of Contents Safe...

Page 4: ...noise affecting your sound Please refer to page 10 for more instruc tions concerning installation AC Power Cord To avoid safety hazards use only the power cord supplied with your unit If a replacement cord is needed make certain to use a standard IEC compliant cord Damaged power cords should be replaced immediately When setting up make certain that theAC plug is easily accessible If you donotinten...

Page 5: ...tton between Boost and Master B konbs in the out position 4 Plug in your bass Using an instrument shielded cable connect your bass to the Input jack and press the power switch on If you have active tone controls on your bass turn all of the controls to the middle or flat position and turn the volume all the way up If you have conventional passive tone controls turn all tone and volume controls all...

Page 6: ...ffects the punch of your sound Bass Boost and cut a 60Hz 10 dB shelving type This is used to control the low end push Low Mid Boost and cut at 250Hz 6dB 10 dB A Q optimized band pass type this works for main body of your sound Boost This is a post E Q gain stage using G I V E technology which adds growl as it is turned up GIVE This button activates the Boost and Master B volume control This can al...

Page 7: ...d by the Tuning Mute Feature Return This input allows the signal from outboard effects devices to be inserted before the boost section Send This output allows signal from the preamp to be fed to outboard effects devices from a point after the EQ section Ground Lift This switch disconnects the ground of the balanced XLR output to eliminate hum and buzz when connecting to equipment that is running o...

Page 8: ...AIN CONTOUR TREBLE HI MID LOW MID BASS BOOST MASTER B MASTER POWER MB 500 2 G I V E CLIP ON OFF ON OFF ON OFF ON OFF INPUT 10dB MUTE GAIN CONTOUR TREBLE HI MID LOW MID BASS BOOST MASTER B MASTER POWER MB 500 2 G I V E CLIP ON OFF ON OFF ON OFF ON OFF INPUT 10dB MUTE GAIN CONTOUR TREBLE HI MID LOW MID BASS BOOST MASTER B MASTER POWER MB 500 2 G I V E CLIP ON OFF ON OFF ON OFF ON OFF INPUT 10dB MUTE...

Page 9: ...ng the Boost while lowering Master B will add more growl while keeping the sound level the same You can use Master B to increase or lower the overall output volume when switching the Boost on via the front panel or from the included foot switch In either normal or boost mode the cleanest sound is obtained with Master Volume settings at 3 o clock Direct Out The MB Series provides a low noise high q...

Page 10: ...our amplifier and the other equipment Moving the Unit Before moving the unit be certain to disconnect any interconnection cords with other components and make sure that you disconnect the unit from the AC outlet Cleaning When the unit gets dirty clean only with a dry cloth Never use benzene thinner alcohol or other volatile cleaning agents Do not use abrasive cleaners as they may damage the finish...

Page 11: ...ies pre amp incorpo rates what we call G I V E Gate Induced Valve Effect Technology We use field effect devices with the gate biased in a way that emphasizes the optimum harmonic content of the signal Working in concert with our unique Four Band Active Equalizer and three stage Voicing Filter Section G I V E technology produces a consistently pleas ing bass tone Cool Running Reliability To cool th...

Page 12: ...230V 50Hz 60Hz 580W full power 75 6W average power Japan 100V 50Hz 580W full power 75 6 average power Output Power Input Section Maximum Input Level With 10dB pad Input Impedance Send Output Impedance Return Input Impedance Tuner Output Impedance Direct Output Impedance Equalizer Bass Lo Mid Hi Mid Treble Voicing Filters Contour 12 350W 8 Ohms 500W 4 Ohms 0 6V Rms 1 6V Rms 1M Ohms 220 Ohms 50K Ohm...

Page 13: ...13 2 MB 500 Owner s Manual Part 160 0510 0 A ...

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