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2

MB² SERIES

Robert Gallien

Founder and President

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Congratulations

!

Your  purchase  of  a  new  Gallien-Krueger  MB² 

Series amplifier is surely the result of much care-

ful consideration on your part. For our part, we

at Gallien-Krueger are pleased that you chose us,

and are determined that you will be a satisfied

customer. In choosing a MB²  Series  amplifier,

you now own an amplifier with many unique

features which will allow you to create your own

distinct sound.

To get the most out of your new purchase, please

take a few minutes to read through this manual.

If you are in a hurry, we suggest you at least read

through the Quick Start section before setting up

your new rig. This will help get you started and

give you a few quick tips, but is not a substitute

for reading the rest of the manual.

Your amplifier should have come with the follow-

ing items, please check the contents of the box to

ensure that you have everything.

Included with your MB² Series Amplifier:

Power cord                             1

Owner’s manual                    1

Warranty card                        1

Safety instructions sheet       1

One button foot switch         1

If your MB² Series amplifier did not come with all the

items listed, or if you encounter problems while

setting up your 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: [email protected]

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 not been

very interested in following the latest fad. I’m a

Stanford educated engineer who worked my

way through school as a musician.    Like all

musicians, I have lugged amplifiers up stairways

and into car trunks, always wondering why these

things had to be so heavy, bulky, and hard to

handle.

As the principal innovator at GK, our products

reflect my attitudes and life experiences. I

don’t model my designs after other manu-

facturers’ products. Instead, I believe new and

old problems are best solved with new solutions.

Having taken our own path, GK products enjoy a

unique, unmatched sound, allowing you every

opportunity to make an original statement.

Having supported my products for over thirty

years, I have learned from the story they tell.

Gallien-Krueger is a reflection of that story, and

has a commitment to support that legacy. Just as

the products I created over thirty five years ago

are still telling their story, the products we create

today will be talking to us tomorrow.

We’ll be listening,

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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