Boss GEB-7 Bass Equalizer
Boss GEB-7 Bass Equalizer

GEB-7 Bass Equalizer, Bass Eq/Enhancer from Boss.

All user reviews for the Boss GEB-7 Bass Equalizer

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Average Score:4.7( 4.7/5 based on 12 reviews )
 8 reviews67 %
 3 reviews25 %
Audience: Advanced users Value For Money : Excellent
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tune4media's review"One of the best equalizers on stage"

Boss GEB-7 Bass Equalizer
I bought this pedal (pretty recently) and had a few gigs. I've got to say, at first it took me a while to get used to this pedal. But once I've got used to it - This pedal is a game changer. If you're a performing bass player and you want to control your sound + you need to adjust your tone to the environment and PA, That's a pretty good pedal that can handle the task.

iamqman's review"More improved"

Boss GEB-7 Bass Equalizer
This is the next addition to the bass EQ pedals from Boss/Roland. The pedal can adjust your bass tone to the frequencies that your desire or want taken down or out. This was to replace the Boss GE-7B. For the most part the tone and style is unchanged. The frequencies have however take a better turn for the bass guitarist. The frequencies are now at 50Hz, 120Hz, 400Hz, 500Hz, 800Hz, 4.5kHz and 10kHz which means they're not spaced at octaves anymore. This gives the most critical frequencies of 400hz-500hz two separate sliders for more overall control of tone.



Controls: 7 Band Graphic Equalizer + level control
Connectors: Input, Output, AC Adaptor
Current Draw: 16 mA (DC 9V)
Weight: 440 g (1 lb.)
Equalizer: 50 Hz, 120 Hz, 400 Hz, 500 Hz, 800 Hz, 4.5 kHz, 10 kHz
Level Control: +/-15 dB per band
Recommended AC Adaptor: PSA Series


The most critical frequencies for the guitar are the 800hz where as the most important to the bass guitar are between 400hz and 500hz. This newer EQ pedal addition tackles that dilemma better than the previous Boss Ge-7B. You now have a much more usable EQ pedal design specifically for the bass guitar.

This pedal works well with any bass guitar or bass amp that needs some major or minor EQing adjustments. The pedal can be a bit noisy and that is because it is a booster pedal which adds distortion to the mix. So that can be tamed depending on how much or how little of the sliders that you use. The level will have the most effect of noise to your rig.


At new these pedal come in right at around $100, which isn't bad for a good EQ pedal for bass guitar. The pedal is a must for someone who may have an older bass amp or an amp that doesn't highlight the right frequencies that you would like. This is a cheap alternative to buying a whole new rig. I would recommend this pedal to any bass player who needs to fine tune his sound to where it fits best in his or her band mix.

badgerific's review"Useful pedal, a little noisy."

Boss GEB-7 Bass Equalizer
This is an analog graphic equalizer stompbox from Boss. It's not rackable or able to be edited using a computer. It's features include:

-7 Bands between 50Hz and 10kHz

-Bands are 50Hz, 120Hz, 400Hz, 500Hz, 800Hz, 4.5KHz and 10KHz

-Overall level control to make up to unity gain or give a boost

-All bands and level boost and cut up to 15dB

-1/4" input and output jacks

-Powered by 9V battery or 9V Boss adaptor

-Buffered bypass


Simple to set up just plug your guitar in and the amp on the output and a battery inside and you're ready to roll. The sliders are very intuitive and easy to play with to change the sound. The range of frequencies on this pedal make it very useful for tone shaping possibilities. I found it very useful to produce a fuller sound with fuzz pedals as some of them tended to cut a bit of the bass frequencies so this eq could be used to boost them a bit.


I find this pedal doesn't color the tone to give it a distinct "Boss EQ sound" too much but does still allow lots of possibility for changing your sound to suit your needs.

The only problem I have with this pedal is that it can be quite noisy when boosting a few things but if you learn to use it by cutting what you don't want and then just boosting the overall level then it can be pretty quiet.

The buffered bypass on this pedal isn't great but as I used this pedal turned on most of the time I never really had a problem with that.


Overall I think this pedal is pretty decent for the price but it was a little too noisy for me to keep in my rig. The main reason I used this pedal was because I preferred the graphic equalizer rather than the parametric one on my ashdown amplifier. After spending more time with my amp I've worked out to do all the things I used to without the pedal so it was useless me keeping it.

If I had certain dirt pedals that I wanted to use regularly then I would probably keep this and use it in a loop with the dirt pedal as I think it's a great use for this pedal.

MGR/Billy's review"Boss GEB-7"

Boss GEB-7 Bass Equalizer
Every bass play needs a graphic EQ in their rig was a line I heard from a respected sound engineer. If not for shaping a tone to your liking, it will help you EQ your sound accordingly to the room you are in.

A great pedal to start with is the Bass Equalizer by Boss. The model is the GEB-7

Let's get the rundown of the frequencies you can boost or cut. L-R: 50hz, 120hz, 400hz, 500hz, 800hz, 4.5khz and 10khz.

I bought this used on off of an online guitar forum. I had no fear because it's a Boss, they are tanks!

I think this pedals retails for around $100, I picked mine up used for $40.

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The good. This pedal does everything it should and nothing it should not. It is built like a tank. I can just toss it in my gig bag and pull it out when needed.

Some people gripe about Boss' bypass. Buffered vs. True Bypass. The Boss pedals feature the buffer. I do not notice any pros or cons either way. This pedal isn't noisy.

Rock solid! The faders will probably be the first thing to go, but so far so good. This features Boss standard solid metal box as well as decent jacks.

One of the easiest ways to make big changes in your bass tone. A great pedal to have around just in case.

This review was originally published on

Taigong's review (This content has been automatically translated from French)" Good product ... very"

Boss GEB-7 Bass Equalizer
Pedal has 7 bands EQ with gain ...
Frequencies are fairly well adapted to obtain interesting settings.


Very easy to use


Pedal handy to compensate for an amp and get the desired sound. No deformation or breath output


Use for over a year ... very convenient! Do not replace a pre-amp but refines its settings no matter where one is

motteherbeuse's review (This content has been automatically translated from French)

Boss GEB-7 Bass Equalizer
this is not an effect pedals but its quality
it is between an analog and possde and 1 output jack, period.
The case is therefore mtallique strong.


I did not have the manual but rglage sample taken from a catalog Boss.
s with a little more research you can easily find sounds trs good quality with the help of sliders 7.


This small qualizeur is a marvel and technician without being there is always the sounds we're looking for.
I use it connects a Boss LMB-3 or I connect an STD US JB and Cort NB4FL.
I do not use the amp, I go directly from the mixing console.
when it was well in hand, one can easily change rglages to search for another stamp of her better suited to the types of music see also some rooms or other places o one occurs.
Currently I can not do without and it is indispensable.


I use it for about a year, purchase 50 euros in TBE.
I have not tried others because I always trust BOSS in quality and price is confirm.
I do it again the same choice without hsitation and I advised the demanding bass players.

Anonymous 's review (This content has been automatically translated from French)

Boss GEB-7 Bass Equalizer
Is Gnrale setup simple?

A Qualizer is never aisbr /> The edition of sound effects or is it easy?

Same ba
Is the manual clear and sufficient? ...dropoff Window



Are the effects effective and sufficiently ADAPTS GPs?

Highly transparent REALLY effective. can serve as an equalizer, boost or vice versa.


With experience, you do again this choice? ...dropoff Window

yes pedal essential!

rootsvibes01's review (This content has been automatically translated from French)

Boss GEB-7 Bass Equalizer
7-band eq brand boss boost + / - 15 db
the case inspires confidence


Using simple hyper


Excellent! super easy to have your sound! I uitilise slap in and makes great


Great stuff, good price quality ratio
the right plan is to have so many pedals that sound DIFFERENT (must have the tunes ...) because the change between two pieces rglages is boring quickly, or else if you want full of eq diffrent take the pedals boss eq-20
I have a sound with the eq the bass (pedals off) and sound with GEB7 (and the bass eq off)

pulvonium's review (This content has been automatically translated from French)

Boss GEB-7 Bass Equalizer
Effects pedal format classic Reference BOSS GEB-7
7-band equalizer for bass volume + (8 sliders)
Respective frequency: 50 / 120 / 400 / 500 / 800 / 4500 / 10000Hz
An LED illuminates when the effect is activated (inside truism ...)
Each band is adjusted using a slider with a fairly short step to locate the center position.
The Eq is not "mathematical": The frequencies were chosen specifically to meet the sound hinges electric bass.

Apart from that, classic frame at Boss: Enough heavy and solid, regular access to the battery, making power to the standard Boss (9V negative polarity in the middle), rubber sole ... Solid built to last ... and we do not forget to remove the cables to the battery not eat between rehearsals!
I would have much larger view with sliders and a diode longer visible, but it would cost more!


Configuration is very simple: One branch, the effect is activated, and adjusted the sliders to walk by his ears!
It turns off the sound to compare with untreated ... and we finally found!
Short manual in English, but for this type of effect, no need for lengthy theoretical explanations ...


Here we enter the heart of the matter: Yes, excellent sound quality!
The theory on Eq is that it is better to avoid adding to cut the breath and saturations. Well here you can go before it blows, it has a large volume!
My problem with EQ "classic" (Bass / Med / Treble, possibly parametric) is that the action of a factor bound to modify the other two.
Here, no: Each variation of a frequency band allows the addition (or removal) of a color unique sound. The frequencies are well chosen in my opinion (I do not know what it donnnerait with a 5-string) Only the frequency 10000Hz not "jump" to the ears not as much as the other six.
I find it easier to find "my" sound with this pedal with my amp Eq yet have ben provided. In particular, I heard accents trèèèès serious that I had never made so far on the same stuff with the EQ of the amp ...
In addition, the graphical representation of the setting sliders appears more clearly than the knobs in my opinion (but that's more the domain of psychoacoustics)
The slider "LEVEL" allows a change in dynamics very important.
(FYI: I play 4 string electric bass with a passive micro PB and JB, a Fender amp and 300W HP 15 inches.)


I have since February 2006.
I originally bought this pedal for a snapping sound in a passage where the bass has to go "forward". Finally, given the ease in finding the sound, this pedal helps me do my outright its "basic"! At one point I even had two in my pedalboard (with a low ...)
What makes it even better: I bought it secondhand for a low price and is in mint condition ...

kalikzen's review (This content has been automatically translated from French)

Boss GEB-7 Bass Equalizer
7-band equalizer for bass.
Input / Output Jack
Assembled DC


Very simple configuration: 7 faders for different frequency ranges (from 50Hz to 10kHz). A volume fader.


I use it with my Fender Jaguar granted SI. I found my sound a bit "hollow" in the tuning down, so I wanted to thicken while retaining the characteristic of the Fender sound leg. I was simply amazed! What a potato! Frequencies do not saturate, do not eat, the sound is very well defined. Saturation with a big I can even reach full bass sounds!


I use it for a little less than a month, we gave it to me (a jazz bassist who used more ..)

In my view the price / quality ratio is very good: P
This is a good alternative to 10-band equalizers for guitar.