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14

700RB-II/1001RB-II Series

Tech Talk

Tech Talk

Characteristics of the 1001RB-II/700RB-II:

The 1001RB-II/700RB-II Series is a flexible, state-of-
the-art Bass Amplifier, designed to deliver maximum
performance,  and be simple to operate.  This is
accomplished through a few, very important  features:
·

Extremely high current power supply and
power amp circuitry, gets the sound out of
your head.

·

Bi-Amp sound, two power amps, 700W/480W
for the woofer, and 50 Watts for the horn.

·

Electronic crossover, seamless two way sound.

·

Four, Bass specific bands of active
equalization for precise tone control.

·

Three voicing filters for shaping and
customizing your sound.

·

Balanced direct output with level control
eliminates need for a direct box.

·

Continuously variable fan cooling.

Current Output & Bass Response:

When a power amplifier is pushing several speaker
cones, and a high-power transient like a string slap
comes along, the amp has to tap into a large power
reserve to maintain cone control.  If the amplifier
doesn’t have this ability, the sound is unresponsive
and less out front.  The amp loses it’s punch and feel
at higher playing levels.  Instead of responding to
your every command, the amplifier simply cuts those
transients off, leaving you with the feeling that
something is missing  in your sound.

Since most amplifiers have limited output current
capacity, they need “current limiting circuits” to
protect 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-II/700RB-II Series has extremely high
current capacity, so it doesn’t need current limiting
circuits for over-load protection.

There is nothing in the 1001RB-II/700RB-II Series
power amp to come between you and your sound
except faithful, raw power.

Bi-Amp Sound:

Bass players have always liked the growl they get from
slight overdrive.  In GK amps this comes partly from
the boost circuits and partly from the power amp.  The
problem is that growl, sounds great through woofers,
and horrible through horns.  In the typical full range
system with a passive crossover, there is no way to get

growl and keep the definition that the horn provides.
The horn always has to be turned down.  In a Bi-Amp
system like the 1001RB-II/700RB-II Series, the woofer
and the horn, each have their own power amp,
allowing us to get growl in the woofer only, while
keeping the horn sound crystal clear.  Now you can
over-drive the woofer as much as you want, and leave
the horn all the way up, keeping the definition it
brings to your sound.  Running the 1001RB-II/
700RB-II Series in Bi-Amp mode through a GK-RBH
cabinet, for the first time allows full access to the
benefits of Bi-Amp sound. This is the reason the
1001RB-II/700RB-II Series is a Bi-Amp, and it is the
reason you will be able to explore an entirely new
territory of Bass sound.

Electronic Crossover:

Bi-Amp systems allow the crossover to be electronic
and therefore, have much higher quality than passive
crossovers.  A crossover separates the sound into two
parts (high and low frequency).  The highs are sent to
the horn or high frequency cabinet and the lows are
sent to the woofer.  In an ideal system, adding the
highs and the lows back together would recover the
original signal.  Most passive Bass systems have very
poor crossovers, resulting in severe signal corruption.
When these signals are added back together (as in
your ear), they have very little in common with the
original signal.  The 1001RB-II/700RB-II Series uses
a Constant Voltage crossover which results in very
little signal corruption.  In fact, when the high and
low signals are added back together, the result is
extremely close to the original.  This makes a two-way
system sound more seamless, and less artificial.  We
have also included a Tweeter Hi-Cut switch in the
crossover, which rolls the tweeter off above 10kHz
giving it a less glassy, more cone like sound.

Equalization:

Standard tone controls and graphic equalizers give
you plenty of variation, but they don’t provide what
the instrument really needs.  The fact is, graphic
equalizers are intended for room equalization.  The
equalization in Gallien-Krueger amplifiers reflects 30
years of continuous development and refinement. The
GK equalizer is unique to the industry, it’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.  Now it is possible to obtain the sound you
desire.

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Содержание 1001RB-II

Страница 1: ...1001 RB II 700RB II Owner s Manual Artist Series 1001RB II 700RB II 1001RB 210 700RB 210 1001RB 115 700RB 115 ...

Страница 2: ...RB II Series Combos Tech Talk Specifications All Features and specifications are subject to change without notice This list is subject to change without notice Table of Contents 9 10 11 12 13 14 16 3 5 6 7 8 Please read the Safety Information section on page 5 before continuing Gallien Krueger 2234 Industrial Drive Stockton CA 95206 phone 209 234 7300 fax 209 234 8420 email info gallien krueger co...

Страница 3: ...ing 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 II 700RB II Head 1001RB II 700RB II 1 Rack mount Ears with Hardware 2 Power Cord 1 Four Conductor Speakon Style Cable 1 Owner s Manual 1 Warranty Card 1 Safety Instructions Sheet 1 Included with your 1001RB II 700RB II...

Страница 4: ... 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 G K G K G K G K G K 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 from the ...

Страница 5: ...ththeamplifierpoweron Besuretheamplifierunitisturnedoffbefore connecting to the speaker 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 cor...

Страница 6: ...only use a standard two Speakon connectors only use a standard two Speakon connectors only use a standard two wire Speakon cable The supplied four wire Speakon cable The supplied four wire Speakon cable The supplied four wire Speakon cable The supplied four wire Speakon cable The supplied four conductor Speakon style connector could conductor Speakon style connector could conductor Speakon style c...

Страница 7: ...RB II front panel Note In the Bi Amp configuration the 50W tweeter amp is always operating from 5kHz and up high frequencies only It will drive horns only and not cabinets 1001RB II 700RB II setup up for Normal Operation The 1001RB II 700RB II series amplifier is config ured for normal operation when you are connect ing to any cabinet with a 2 conductor Speakon style cable 1 4 to 1 4 speaker cable...

Страница 8: ...er Turning up the Boost control will add a little growl to your tone This is an unmistakable 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 distortion that sounds great through a woofer but horrible through a horn see Bi Amp solution b...

Страница 9: ...r note Contour note Contour note Contour note Contour note At higher playing levels the contour should be set lower for mid range clarity To get 800RB voicing the contour should be set to 0 or 10 only V V V V Volume note olume note olume note olume note olume note Adjust volume before playing these recommended settings Reggae Jazz Fusion Front pickup recommended Both pickups recommended Slap Rock ...

Страница 10: ...eating equipment Avoid moist or humid locations Remember power amplifiers generate heat The heat sink fins and ventilation slots that form 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 th...

Страница 11: ...dgeanddefinitiontohigherfrequencies ActiveEqualization 8 Treble Boostandcutat7kHz 14dBshelvingtype Addorremoveedgeand definition 9 HighMid Boostandcutat1kHz 6dB 10dB QOptimized bandpasstype Works onlowerstring harmonics andeffectsthepunchofyoursound 10 LowMid Boostandcutat250Hz 6dB 10dB QOptimized bandpasstype Works onthemainbodyofyoursound 11 Bass Boostandcutat60Hz 10dB shelvingtype Controlslowen...

Страница 12: ...eakon Outputs Enables BI AMP operation by connecting a GK RBH Series cabinet with the provided 4 conductor Speakon cable This connects the Tweeter 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 II 700RB II Thi...

Страница 13: ...r disconnected One 4 Ohm or Two 8 Ohm cabinets on the Main Woofer Amp One or Two 8 Ohm horns on the 50W Tweeter 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 and roll handle first move the combo into the upright position front perpendicular to the ground ...

Страница 14: ...des The horn always has to be turned down In a Bi Amp system like the 1001RB II 700RB II Series the woofer and the horn each have their own power amp allowing us to get growl in the woofer only while keeping the horn sound crystal clear Now you can over drive the woofer as much as you want and leave the horn all the way up keeping the definition it brings to your sound Running the 1001RB II 700RB ...

Страница 15: ... signals run off a high voltage supply This keeps the amp running a lot cooler and makes it much more reliable 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 speed increases to keep everything cool Smart Protection Circ...

Страница 16: ...0Hz 10db 500Hz 3db 7kHz Presence 9db 10kHz Crossover Triple pole constant voltage crossover at 5kHz Noise 90db referenced to 700W 480W A weighted Cooling Continuously Variable Speed Fan Amplifier Protection Full short circuit thermal RF protection Stable into reactive and mismatched loads Five second muted warm up Dimensions HxWxD 3 1 2 x 17 x 8 2 Rack Spaces Weight 700RB II 16 5lbs 1001RB II 18lb...

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