▾

Gallien-Krueger 700RB-II bass guitar amplifier head

no reviews yet

Discontinued, this product can no longer be ordered.

No alternatives found

Product information
Videos (1)
Reviews (0)
Downloads (1)
News and items (10)

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.

Description	Type	Language	Extension
Handleiding.	Manual	Unknown

Backpack-Sized Tube Bass Heads by Ampeg

Friday 18 September 2015

Ampeg's Portaflex series is a line of lightweight bass amplifiers, which has now been extended to include two new tube heads: the PF-20T and the PF-50T. To top it all off, the amplifier builder has also introduced a new cabinet, the PF-112HFL. All of these new additions stand out thanks to their power, affordable prices and exceptionally low weight. What more could you wish for?

NAMM 2016: Orange Celebrates with Anniversary Amps!

Thursday 21 January 2016 By Lizanne

Okay, okay, it's not exactly Orange's anniversary. It's actually the ten-year anniversary of one of their products, the Tiny Terror. Just for the occasion, they've developed a very special Limited Edition Half Stack, consisting of a manually-wired chrome 15-watt Shiny Terror tube head and a 2x 10" cabinet with an open fretwork back in Racing Green. Time to celebrate!

NAMM 2016: Hartke Presents a New Bass Amp and Four New Bass Pedals

Saturday 23 January 2016 By Lizanne

Hartke presented four new bass effects pedals and a bass amp head at this year's NAMM show. The four new pedals are the Bass Attack 2 DI box, the HC33 analogue bas chorus, the HF44 fuzz pedal and the HL77 loop pedal. The TX600 amp head has a capacity of 600 watts.

ENGL Ironbass: Tube Bass Guitar Amp Head With Character

Tuesday 8 March 2016

Guitarists were already familiar with the ENGL Ironball amps, which are especially popular in the metal community. The ENGL Ironball family has a new member in the small but powerful ENGL Ironbass amp head! It's a hybrid tube bass guitar amp with 800 watts of power at 4 ohms, and 500 watts at 8 ohms. That's pretty potent for a lunchbox-sized bass amp head.

Musikmesse 2016: Ashdown Retroglide 800 Limited Edition White

Friday 8 April 2016 By Lizanne

White goes with everything - that's what Ashdown seems to be saying with the launch of the white Limited Edition Retroglide 800 in at the 2016 Musikmesse in Frankfurt, Germany.

Darkglass Electronics is Back at Bax Music!

Monday 6 July 2020 By Kasper | Bax Music

Finland; the land of thousands of lakes, countless heavy metal bands and, of course, Darkglass Electronics. After a short break, this first-rate brand now rejoins the Bax Music range. Suomi perkele!

Brutal British Amps for Bass and Guitar by Hiwatt

Wednesday 9 November 2016 By Lizanne

Legendary bands like The Who and Pink Floyd played on them in the sixties, and now, Bax Music is able to offer these British Hiwatt amplifiers to our customers. Whether you're a beginner or a professional musician, Hiwatt is sure to have something for everyone!

Meet Trace Elliot's New ELF!

Wednesday 10 May 2017 By Richard | Bax Music

Trace Elliot are back! Initially known for their large, heavy bass amplifiers, the brand is introducing some exciting new products that are innovative, compact and packed full of the latest technology. One of the highlights has to be the ELF: a compact bass guitar amplifier head that weighs just under 1 kg, yet is capable of producing 200 watts of power!

Positive Grid Reveals New BIAS Amplifiers and Pedals

Friday 14 July 2017 By Richard | Bax Music

Positive Grid is adding a number of interesting new products to its BIAS range this summer. The new products include amplifier heads, more compact effects pedals and a footswitch to control existing BIAS hardware.

Darkglass Introduce Microtubes 500 and Speaker Cabinets

Tuesday 26 September 2017 By Richard | Bax Music

Finnish company Darkglass are well known for producing top-quality gear for bass guitarists. Following on from the success of the powerful Microtubes 900, they're now offering the affordable Microtubes 500 and launching their first speaker cabinets too!