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1001RB Series

1001RB Series Combos

The 1001RB Series combos deliver the1001RB’s unique
features and distinct sound by using a variety of
internal speaker configurations, GK’s RBH cabinet
technology and a unique Lock N’ Roll transport
system.

Speaker Configurations:

1001RB/115

One 8 Ohm 15

speaker and

one 8 Ohm horn

1001RB/210

Two 16 Ohm 10

speakers

(wired in parallel for an 8
Ohm equivalent load)and
one 8 Ohm horn

The 1001RB combo electronics are identical to the1001RB
head and are rated for the same maximum power output
and speaker load (540W into 4 Ohms, and 50W into 4
Ohms).  Maximum power is achieved by connecting one 8
Ohm extension cabinet (such as the 210RBH,  410RBH,
or 115RBH) in addition to the combo’s internal 8 Ohm
speaker load.  To drive more than one extension cabinet,
the combo’s internal speaker can be disconnected by
unplugging the Speakon cable connected to the combo’s
back panel.  Below is a detailed description of the maxi-
mum loads the combos can drive.

Maximum recommended load with the

internal speaker connected:

One 8 Ohm cabinet on the 540W Amp.
One 8 Ohm horn on the 50W Amp.

Maximum recommended load with the

internal speaker disconnected:

One 4 Ohm, or Two 8 Ohm cabinets on the 540W Amp.
One or Two 8 Ohm horns on the 50W Amp.

Lock N’ Roll Transport System:

The Lock N’ Roll transport system is designed for quick
and easy rolling of the combo on flat surfaces such as
carpet, flooring, pavement, etc.  To engage the Lock N’
Roll handle,  first move the combo into the upright
position (front perpendicular to the ground).  Next,  stand
behind the cabinet and lift the Lock N’ Roll handle up with
your right hand.  The handle will lock into place after
about 1 1/2 feet.  Finally, grab the handle and tilt towards
the back of the combo.  The wheels on the bottom of the
cabinet will automatically engage and allow smooth
rolling.

To disengage the Lock N’ Roll system, first return the
combo to its upright position and stand behind the unit.
Next, with your left hand, pull the locking latch at the
base of the handle to your left, while pushing the handle
down gently with your right hand.  Finally, push the
handle down until it stops and is flush with the top of the
combo.

The 1001RB Series combos are designed for maximum
setup versatility to accommodate a variety of playing
situations.  For practicing and close monitoring situations,
tilt the cabinet back into its “Rock Back” position.   For
stronger bass and audience projection, leave the combo in
the upright position.

1001RB 

Series 

Combos

Summary of Contents for 1001RB

Page 1: ...1001RB Series Owner s Manual 1001RB 1001RB 115 1001RB 210 ...

Page 2: ...G TO QUALIFIED SERVICE PERSONNEL CAUTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT ATTENTION POUR EVITER LES CHOCS ELECTRIQUES INRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU AU FOND WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE The lightning flash with a...

Page 3: ...ot a substitute for reading the rest of the manual Your amplifier should have come with the following items please check the contents of the box to ensure that you have everything Included with your 1001RB Head 1001RB 1 Rack mount Ears with Hardware 2 Power Cord 1 4 Conductor Speakon Cable 1 Owner s Manual 1 Warranty Card 1 Safety Instructions Sheet 1 Included with your 1001RB Combo 1001RB 115 or ...

Page 4: ...es I don t model my designs after other manufacturer s products as some of our competitors are proud of reciting 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 the artist using them every opportunity to make an original statement Having supported my products for over thirty years I have learned...

Page 5: ...oofer X Over switch on the front panel to the Out position For more information on Bi Amp and Normal Operation see page 7 Remember Playing loud with the master below 12 O clock will cause distortion In some cases this is desireable Caution Do not connect the Speakon cable labeled Bridge Mode to the 1001RB This may result in damage to the ampli fier Then Set all the voicing filters EQ controls and ...

Page 6: ...able GK trade mark sound that you will grow to appreciate Raising the Boost while lowering the Master will add more growl while keeping the sound level the same Growl is actually a small amount of even order harmonic distor tion that sounds great through a woofer but horrible through a horn see Bi Amp solution below For most playing situations the Master is set between 12 3 o clock The cleanest so...

Page 7: ... in by adjusting the Tweeter and Woofer Master controls on the 1001RB front panel Note In the Bi Amp configuration we recommend starting with the Woofer X Over and Tweeter Hi Cut controls in 1001RB setup up for Normal Operation The 1001RB series amplifier is configured for normal operation when you are connecting to any cabinet with a 2 conductor Speakon cable 1 4 to 1 4 speaker cable or 1 4 to ba...

Page 8: ...possibility of power variation and electrical start up noise affecting your sound Do Not Use Extension Cords To avoid safety hazards use only the power cord supplied with your unit If a replacement cord is used make certain that it is of consistent quality and gauge as the original We do not recommend using extension cords with this product As with all electrical devices do not run power cords und...

Page 9: ...orm part of the enclosure are specially designed to remove this heat Placing other electronic equipment near these heat dissipation systems may possibly affect the long term reliability of both your 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 ...

Page 10: ...Add or remove edge and definition 9 HighMid Boost and cut at 1 kHz 10dB Q Optimized band pass type Works on lower string harmonics and effects the punch of your sound 1 0 L o w M i d Boost and cut at 250Hz 10dB Q Optimized band pass type Works on the main body of your sound 11 Bass Boost and cut at 60Hz 10dB shelving type Controls low end push 12 Boost A post EQ gain stage using GIVE technology wh...

Page 11: ...MP operation by connecting a GK RBH Series cabinet with the provided 4 conductor Speakon cable This connects the 50W amplifier allowing the Tweeter control on the front panel to control the signal going to the horn See Bi Amp and Normal Operation on page 7 for more information Caution Do not connect a Speakon cable labeled Bridge Mode to the 1001RB This may result in damage to the amplifier Maximu...

Page 12: ...al speaker disconnected One 4 Ohm or Two 8 Ohm cabinets on the 540W Amp One or Two 8 Ohm horns on the 50W Amp Lock N Roll Transport System The Lock N Roll transport system is designed for quick and easy rolling of the combo on flat surfaces such as carpet flooring pavement etc To engage the Lock N Roll handle first move the combo into the upright position front perpendicular to the ground Next sta...

Page 13: ...tect against self destruction High power tran sients trigger these circuits which rob the amplifier of it s ability to control speaker cones This creates a mushy unresponsive feel to your sound The 1001RB Series has extremely high current capacity so it doesn t need current limiting circuits for over load protection There is nothing in the 1001RB Series power amp to come between you and your sound...

Page 14: ...s not just a normal four band equalizer each section is a special circuit optimized to perform a Bass specific job in its range of operation These sections are wired in Series so they add to one another creating a tremendously flexible equalizer that doesn t sound weird at any setting You actually might even get to hear that sound in your head Tech Talk Voicing Filters Voicing filters are used to ...

Page 15: ...speakers as described in Bi Amp and Normal Operation on page 7 If the problem persists contact GK directly for advice Low Noise Operation The 1001RB Series uses a high gain high headroom low noise input stage It has such a large dynamic range 60v p p that very few instruments can overdrive it Even most basses with active electronics do not need the input attenuator to be set The benefit to you is ...

Page 16: ...50Hz Hi Mid 6db 10db 1kHz Treble 14db 7kHz Voicing Filters String Bass Button 11db 20Hz Contour 2db 50Hz 10db 500Hz 3db 7kHz Presence 9db 10kHz Crossover Triple pole constant voltage crossover at 5kHz Noise 90db referenced to 540W A weighted Cooling Continuously Variable Speed Fan Amplifier Protection Full short circuit thermal RF protection Stable into reactive and mismatched loads Five second mu...

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