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Availability:
Only 3 left in stock, order soon!
Arrives
Wednesday, Nov 11
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At a glance
- Condition
- New
- Dimensions
- 8 x 7 x 3.5 in
- Weight
- 2.1 lb
- Color
- Black, Green, White
- Style
- Compact
- Voltage
- 4 volts
- Audio Output Effects
- Synthesizer, Filter
- Warranty
- Electro-harmonix will repair your product if it fails to operate due to defects in materials or workmanship for a period of one year from date of purchase. In the event that it should ever become necessary to return your unit to the factory for repair, please ship the unit to us, securely packed, postage prepaid and insured, along with a copy of proof of purchase and with the appropriate handling charge as set forth on the instruction sheet for that unit. All other charges for parts and labor will be paid by electro-harmonix. This warranty does not cover batteries which must be replaced at customer’s expense or any unit opened and/or modified by the consumer. In addition, it will expedite the repair if you would include a short note describing the problem as specifically as possible. We, in turn, will do our best to see that your electro-harmonix accessory is back in your act fast. To qualify, submit your warranty card within 10 days of purchase. You can mail the warranty card included in your purchase or register your warranty online here. This warranty gives you specific legal rights. You may also have others which vary from state to state and from country to country. For warranty service of electro-harmonix effects in most locations, please email info@ehx. Com.
Features 5
- All analog design
- Design optimized for bass guitar
- 3-pole analog resonant filter
- 4 Voice mixer section mixes: sub octave, original, octave up and square wave
- Start, stop filter frequency sliders with adjustable rate for full control over the filter's sweep direction and speed
Description
The Bass Micro Synthesizer has the same feature set as the Micro Synthesizer, but includes a trigger and filter sweep range especially tailored for bass guitar. The same fat analog synth textures give your bass a whole new range of possibilities: from percussive stabs to backwards-sounding bowed sounds.
Specs 21
| Brand | Electro-Harmonix |
|---|---|
| Style | Compact |
| Color | Black, Green, White |
| Item Weight | 2.1 pounds |
| Voltage | 4 volts |
| Audio Output Effects | Synthesizer, Filter |
| Hardware Interface | 1/4-inch Audio |
| Signal Format | Analog |
| Sound Profile | Synthetic, experimental, diverse |
| Item Dimensions | 8 x 7 x 3.5 inches |
| Brand Name | Electro-Harmonix |
| Number of Items | 1 |
| Item Highlight | Fat analog synth textures give your bass a whole new range of possibilities! |
| UPC | 683274010809 |
| Global Trade Identification Number | 09 |
| Unit Count | 1 Count |
| Item Type Name | Electric Guitar Electronics |
| Manufacturer | Electro-Harmonix |
| Model Name | Electro Harmonix |
| Model Number | Bass Micro Synthesizer XO |
| Manufacturer Part Number | Micro Bass Synthesizer Pedal |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Nov 11
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Top Amazon Reviews
Awesome bass fx pedal
I've tried all bass synth pedals and this one is the best! Fantastic fat moog-type sounding effects. It tracks notes beautifully too, unlike others that can be a bit sloppy catching the notes off your bass. You will have a lot of fun with this little winner! Think of the bass sounds in the songs 'Lets Groove' by Earth Wind & Fire and 'Jive Talkin' by the Bee Gees and you'll get an idea of the type of sound it produces - that fat analogue Moogish-type synth bass effect. Check out the Electro Harmonix website YouTube links too to get a better idea. The one thing that would make this bass fx nirvana would be the ability to store program pre-sets - even just maybe 3 would be great, but then it would probably be bigger and cost a lot more. I REALLY like the fact that it incorporates faders too, instead of knobs - makes adjustments easier and quicker, and you can see instantly your settings (especially on a dimly lit stage). Construction is well thought-out and rugged - the switch feels sturdy and solid.
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Reviewed in the United States on December 10, 2011 by BigBo'm
Great tones
I would give it a 5 star rating but I'm worried about bringing this feller on stage since its not very consistent with tracking. On the other hand this pedal has a crazy ton of control and i may be mixing things oddly. Who knows... Ill change it to a five star after I had it for a few months and all goes well.
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Reviewed in the United States on May 17, 2017 by Joseph BMoC
Plays well with others
Sliders make everything easier. I put this early on in my signal chain. It enhances other pedals down the chain. The synth plays extremely well with my phaser and bass driver. I am having a significant issue with it when it comes to sustained notes. Even if I pluck an open string as hard as I can, the note will decay naturally until a point where the synth cuts it off completely. So that open E on "Tom Sawyer" sometimes doesn't make it to "mean, mean pride." My active bass doesn't struggle quite as much. Maybe a signal booster would help. I've used many budget multi-effects pedals. The Micro Synth doesn't have as many options to choose from, but every setting is useful and so much easier to control. For what I got in return, the upgrade was worth the extra investment.
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Reviewed in the United States on September 14, 2026 by randomlogic
Must have for pop/electronic bass player
I should have bought one years ago! The quality of Electro-Harmonix pedals is generally good. This one is of much better quality than the 2000s-era Q-Tron+ that I used to have... It has a very wide range of sounds and tones that can be easily tweaked on the go with the slider setup. It's way faster/easier than tweaking with nobs.
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Reviewed in the United States on May 28, 2015 by David Carlson
Absolutely love the Electro-harmonix Bass Microsynth
Absolutely love the Electro-harmonix Bass Microsynth! Does the work of several pedals in one relatively compact unit. Hours of fiddling fun! A great pedal at a reasonable price.
Reviewed in the United States on January 13, 2017 by Dave P
Great for bass guitar in modern worship music
Great for bass guitar in modern worship music
Reviewed in the United States on May 7, 2026 by A. Parker
There's a reason you never find them used....
...and that reason is, they're FREAKIN AMAZING! The range of sounds this pedal is capable of is unrivaled. Sure, they're spendy....but it's well worth it.
Reviewed in the United States on July 1, 2014 by Banderhoos
Tweaky, and a sound you can accomplish with three other pedals.
I desperately wanted to like this, but I think I had a bad unit. My octave slider produced a sound more like a broken capacitor than an octave. Were it a working unit, I think I'd have kept it. It's a cool pedal, and not much else sounds like it. It requires EXTREME nuance to get good tones—90% of the combinations of settings are going to sound like crap. Get to know the sliders, figure out what they all do to your tone, and proceed carefully. I'm not wholly sure it's worth the price, however, as you can get a good approximation of the bass synth sound combining an octaver, a filter, and a fuzz pedal. That is, after all what this pedals is, just combined. Simply because of the number of options out there, I might suggest going this a la carte route before picking up this pedal.
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Reviewed in the United States on November 19, 2013 by Benjamin Mikiten