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4

MB SERIES

Safety Information

Please read all enclosed safety precautions

before connecting or operating this product.

Verify  Line  Voltage  and  Amperage:

Your

new MB Series Bass amplifier has been factory

configured for use with the specific line voltage

for your location:

120 Volt/60Hz 15 A circuit for USA/Canada.

230 Volt/(50/60Hz) 10 A circuit for

UK/Australia.

230 Volt/(50/60Hz) 10 A circuit for Europe.

100 Volt/50Hz 15 A circuit for Japan.

220 Volt/50Hz 10 A circuit for Korea.

Proper AC circuit for all other countries.

Connecting the amplifier to a line with

specifications other than indicated above can

create safety and fire hazard, and may damage

the amplifier. If you have any questions about

the voltage requirements for your specific

model, or about the line voltage in your area,

contact your dealer before plugging the unit into

a wall outlet.

Verify AC Circuit Capacity Before Use:

The high power output of your amplifier may

require heavy current draw

under full-load

conditions. To insure proper performance and

avoid potential safety hazards, we recommend

connection to line circuits with  amperage

specified “as above”. Connecting to the same

circuit used by other heavy-power devices,

such as high-wattage lights, may cause circuit

breakers to trip. It is always a good idea to avoid

using any audio equipment on the same AC circuit

as equipment    with  motors,  such  as  air 

conditioners or refrigerators. This will lessen the

possibility of power variation and electrical

start-up noise affecting your sound.

Please  refer  to  page  10  for  more  instructions 

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 thattheAC plugiseasilyaccessible. Ifyoudo

not intend to use the amplifier for a considerable

length of time, disconnect the plug from the AC

Mains Socket. Do not use an extention cord.

Earth Grounding Connection:

To prevent electric shock, do not remove the

grounding plug on the power cord, or use any plug

or extension cord that does not have a grounding

plug provided. Make certain that the AC outlet

is properly grounded as well. Do not use an

adapter plug with this product.

Do Not Open the Amplifier Enclosure:

There  are  no  user  serviceable  parts  inside  this 

product.  Opening  the  amplifier  enclosure  may 

present  a  shock  hazard.    Modification to the

product will void your warranty.

If liquid

enters the unit, or any metal object such as a

paper clip accidentally falls inside the enclosure,

disconnect the unit from the AC power source

immediately and consult an authorized service

station.

Setup:

To insure proper operation and to avoid poten-

tial safety hazards, place the unit on a firm, level

surface. Do not plug or unplug the instrument

or speaker cable while the amplifier power is on.

Speaker Cables:

To  prevent  electric  shock,  use  “Class  II  Wiring” 

speaker  cable  or  speaker  cable  with  double  or 

reinforced insulation when connecting to speaker 

cabinet.

Heat & Ventilation:

Make  sure  there  is  space  provided  for  proper 

ventilation.  Avoid  using  in  extreme  hot  or  cold 

locations  and  areas  that  are  exposed  to  direct 

sunlight or near heating equipment. Avoid using 

in  moist  or  high  humidity  areas. 

NEVER 

BLOCK  THE  FAN  VENT  HOLES  ON  THE 

SIDES OF THE UNIT.

 

Summary of Contents for MB200

Page 1: ...MB 200 OWNER S MANUAL ...

Page 2: ...ntact 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 not been very interested in...

Page 3: ...UR 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 __________________________ Pg 4 Quick Start ________________________________ Pg 5 Front Panel Controls ________________________ Pg 6 Sound Tips ________________________________Pg 7 Installation and Maintenance ____________...

Page 4: ... 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 thattheACplugiseasilyaccessible Ifyoudo not intend to use the amplifier for a considerable length of time disconnect the plug from the AC Mains Socket Do ...

Page 5: ...s noted below Maximum Recommended Speaker Loads One 4 Ohm or two 8 Ohm cabinets 3 Initial front panel control settings Set all EQ controls and contour knob to 12 o clock Set the input volume controls at 0 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 ...

Page 6: ... used to control the low end push turned up Power Switch Turns the amplifier on and off In the on position the ring surrounding the button will light red during power up then changes to blue indicating the amp is ready for normal operation Should the amp experience a fault over heat or over current the amp will mute and the ring will light red until the condition is corrected This LED turns off wh...

Page 7: ...ed for midrange clarity at higher playing levels Direct Out The MB Series provides a low noise high quality balanced direct output for connection to PA and recording consoles A ground lift switch is included to remove hum and buzz when connecting to equipment powered by a different ground system With the pre post EQ switch set to pre out the direct output signal is fed directly from the input stag...

Page 8: ... 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 of metal par...

Page 9: ... control all the way up the low end is slightly boosted the mids are dropped and the high end is pushed up This is only found in GK amplifiers Cool Running Reliability To cool the amp when its being driven hard we ve designed a temperature sensitive fan cooling system When the amp is under a light load the fan is off or running at a low speed reducing fan noise As the amp works harder the fan spee...

Page 10: ... Bass Lo Mid Hi Mid Treble Voicing Filters Contour 140W 8 Ohms 200W 4 Ohms 0 6V Rms 1 6V Rms 1M Ohms 500 Ohms 100K Ohms 10dB 60Hz 6dB 10dB 250Hz 6dB 10dB 1KHz 14dB 7KHz 2dB 50Hz 10dB 500Hz 3dB 7 KHz Noise 90 dB reference to 200W 140W A Weighted Amplifier Protection Full short circuit thermal and RF protection Stable into reactive and mismatch loads Five second muted warm up Cooling Variable speed ...

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