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700RB-II & 1001RB-II

Safety Information

Safety Information

Please read all enclosed safety precautions before 

connecting or operating this product.

Your amplifier has been factory configured for use 

with the specific line voltage for your location only. 

For example, units set to operate within countries 

that supply 100-120 volt electrical service are not 

compatible with  230-240 volt systems used in other 

countries.

 

120 Volt/60Hz 15 amp circuit for the USA and 

Canada.

230 Volt/(50/60Hz) 10 amp circuit for the UK and 

Australia.

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

100 Volt/50Hz 15 amp circuit for Japan.

220 Volt/50Hz 10 amp circuit for Korea.

Proper AC circuit for all other countries.

Verify  AC  Circuit  Capacity  Before  Use: 

The  high 

power  output  of  your  amplifier  may  require  heavy 

current draw  under full load conditions.  Connecting the 

amplifier  to  a  line  with  specifications  other  than 

indicated  above  can  create  a  safety  or  fire  hazard  and 

may  damage  the  amplifier.  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.

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 that the AC 

plug is easily accessible.  If you do not intend  to  use  the 

amplifier for a considerable  length  of  time, disconnect 

the plug from the AC Mains Socket.

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 

potential 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.

Heat & Ventilation:

 For proper ventilation, maintain a 

clearance of at least 8” above, sides, front and rear of  the 

unit  for  combos  and  1.75”  (one  rack  space)  of 

clearance  above  the  unit  for  heads.  Avoid  using  in 

extremely  hot  or  cold  locations and areas that are 

exposed to direct sunlight or near heating equipment. 

Avoid using in moist or high humidity areas.

Cleaning & Maintenance: 

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 parts. Avoid spraying 

insecticides  near  the  unit.  No  other maintenance 

should be necessary.

Traveling:

  If  traveling  with  the  unit  frequently,  we 

recommend  a  road  case  or  cover  to  protect  it  from 

scratches and road wear.

Packaging: 

The  carton  and  packing  materials  used  in 

shipping your new amplifier were specifically designed to 

cushion  it  from  the  shocks  and  vibration  that  occur 

during transport.  We suggest that you save the carton and 

packing materials for use in shipping, in the event you 

move, or the amplifier  needs repair.

Summary of Contents for 700RB-II

Page 1: ...700RB II 1001RB II Owner s Manual...

Page 2: ...sted or if you encounter problems while setting up your new equipment please contact your local dealer or GK as soon as possible I have never seen the point in doing things the way others have done th...

Page 3: ...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 accompanyi...

Page 4: ...rth 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 t...

Page 5: ...ctly into the input of the next and so on This eliminates the rippling or combing that can happen with parallel EQ circuits The overall result from all of this is an equalizer that s flexible yet easy...

Page 6: ...band pass type control which boosts and cuts at about 250Hz Bass Active shelving type control which boosts and cuts the low frequencies Boost A post EQ gain stage using GK s exclusive Valve Effect tec...

Page 7: ...adjusting the tweeter and woofer master controls on the amplifier front panel Horn Bi Amp System Horn Bi Amp Mode This mode requires a GK horn bi amp compatible bass cabinet Use a properly wired four...

Page 8: ...g Filters 4 5 String Bass 11dB 20Hz Contour 2dB 50Hz 10dB 500Hz 3dB 7kHz Presence 9dB 10kHz Crossover Triple pole constant voltage crossover at 5kHz Noise 90dB A weighted Cooling Variable Speed Fan Pr...

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