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Gallien-Krueger 700RB-II bass guitar amplifier head

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Gallien-Krueger 700RB-II bass guitar amplifier head
Product no: 9000-0009-9272 Bax Music Warranty: This product comes with a 3-year warranty.

General

Flea (Red Hot Chili Peppers), Tom Hamilton (Aerosmith) and Duff McKagan (Guns n' Roses/Velvet Revolver) are just some of the famous names who play on a bass amplifier made by Gallien-Krueger. The American brand is one of the biggest names in the bass world thanks to their top-quality products and unique sound. The 700RB-II is a descendant of the legendary 800RB from 1983. It's equipped with a GK Horn Bi-Amp system which, when paired with a GK HBA cabinet, allows you to adjust the volume controls for the woofer (master) and tweeter separately. The 700RB-II is 2U high, weights just 8.16 kg and produces a mighty 480 watts of power.

Gallien Krueger 700RB-II: versatile tone control

This second generation of the 700RB has all you need to shape your ultimate bass sound. That includes a highly versatile and intuitive active 4-band EQ that allows you to boost or filter frequencies. In addition, there are also three voicing filters with a contour control for scooping the mids, presence for adding extra sparkle, and a special 4/5-string bass switch to adjust the voicing frequencies accordingly. The 700RB-II is suitable for passive or active basses thanks to the -14 dB pad switch.

Bi-Amp and DI output

To adjust the woofer and tweeter volume controls separately, you'll need to connect the amp head to a GK HBA cabinet using a 4-conductor SpeakOn cable. The internal digital crossover that makes this possible also ensures that the typical GK edge on the Gate Induced Valve Effect boost is only sent to the woofer. The Gallien-Krueger 700RB-II also has a tuner output with a mute function, an FX loop, a top-quality DI output with ground lift and a pre/post EQ switch.

Specifications

Product features

Connectors	External speaker(s)
Number of channels	1
Number of speaker outputs	4
Amp modelling	no
Effects loop	yes
Weight	5 - 9.9 kg
Speaker output impedance	8 Ohms, 4 Ohms
Built-in tuner	no
Built-in compressor	no
Built-in effects	none
Colour	black
Power attenuator	no
Amplifier type	transistor
Amplifier valve	not applicable
Power in Watts	401 - 500 Watts

Weight and dimensions including packaging

Weight (incl. packaging)	9,0 kg
Dimensions (incl. packaging)	58,0 x 33,0 x 20,0 cm

Product specifications

bass guitar amplifier head with bi-amp system
designed and built in the U.S.A.
equipped with a power amp that can handle an extremely high current
warm, punchy and extremely fast response
ultra-low noise: -90 dB (A weighted)
electronic crossover for seamless 2-way sound
power: 480 W + 75 W @ 4 ohms, 320 W + 50 W @ 8 ohms
separate volume controls for tweeter and woofer
tweeter hi-cut for dampening frequencies about 10 kHz
woofer hi-cut for dampening frequencies about 5 kHz
crossover: 3-pole constant voltage crossover @ 5 kHz
active 4-band EQ with 4 specific bass frequencies
adjustable contour and presence
voicing switch for 4-string and 5-string bass guitars
boost function (Valve Effect)
cooling: continuous variable speed fan
on/off switch with Power/Protect LED
dimensions: 89 x 432 x 210 mm (2U rack)
weight: 8.16 kg

connectors:

jack instrument input with -14 dB pad
FX loop send + return
2x jack speaker outputs (1x 4 ohms, 1x 8 ohms or 2x 8 ohms)
2x Neutrik SpeakON outputs (1x 4 ohms, 1x 8 ohms or 2x 8 ohms)*
tuner output with mute function
DI output: XLR with volume control, ground lift and pre/post switch

equalizer:

Bass: +/-10 dB @ 60 Hz
Lo-Mid: +6 dB/-10 dB @ 250 Hz
Hi-Mid: +6 dB/-10 dB @ 1 kHz
Treble: +12 dB/-17 dB @ 7 kHz

voicing filters:

4/5-string bass: +11 dB @ 20 Hz
contour: +2 dB @ 50 Hz / -10 dB @ 500 Hz / +3 dB @ 7 kHz
Presence: +9 dB @ 10 kHz

security:

full short circuit, thermal & RF protection
stable with reactive and mismatched loads
5-second muted warm up time

* Use a 4-conductor SpeakOn cable to connect the amp head to a compatible GK Horn Bi-Amp (HBA) speaker cabinet. Use a standard 2-conductor SpeakOn cable to connect to cabinets by other brands.