Electro Harmonix Bass Mono Synth

Synth Effect Pedal

  • 11 Different types each emulating the sound of different vintage synthesizers
  • Monophonic pedal: Synthesizes one note per oscillator
  • Controls: Type, Ctrl, Sens, Volume (Synth/Dry)
  • Foot-switch: Preset, Bypass
  • Input: 6.3 mm Jack
  • Output: 6.3 mm Jack
  • Dry output: 6.3 mm Jack
  • Synth output: 6.3 mm Jack
  • True Bypass
  • Mains adapter connection: Hollow plug socket 5.5 x 2.1 mm, minus pole inside
  • Current consumption: 125 mA
  • Power supply with a 9 V DC mains adapter (included in delivery)

Note: No battery operation possible!

Further Information

Effect Types Synthesizer

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25 Customer Ratings:
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Sent in perfect shape
Bozuk Dede, 09.05.2020
Product was well packed and well sent. There was no package damage nor cosmetic damage on the product. Seems that if you are into synth sounds it will give you varied options and will serve it's purpose. I recommend!
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Nice sound, but not really easy to use
Bambinainnero, 29.01.2020
The presets effects are really really cool, but I find it not suitable for quick playing. Maybe I still have to dig more into it. So far I've just been messing around with it, by myself.

Since it is a mono synth it's not suitable for chords and you have to be very careful about resonance. The SENS control knob adjusts the responce to your playing, but I always feel some latency between my playing and the output. I really really appreciate the DRY control, which control the volume of your uneffected signal, and I have to say the the synth volume is always pretty loud-

I still have to look more into the CTRL knob, which affects different features depending on the effect.

Above all I think it is a good quality synth for the price, and I'm pretty curious about using it with an ebow.
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Purpose-built pedal
NikolaM, 18.11.2019
After watching every possible review and demo online, I decided it's something my rig needs to expand my sound. It was fun for about 15 minutes and then I realised only 3 sounds are actually usable. By usable I mean you can actually use them in songs, keep in mind the sound quality is poor and the latency and tone detection are not that great. I would advise running a gate and compression before (and after) this pedal to make sure it doesn't detect noise as tones and to make sure they actually last.

What can you use this pedal for? Not much. If you tend to play fast music, the pedal won't be able to detect the tone changes. You could probably play some simple or slow
paced tunes with it, maybe something ambiental. I personally use it only for one song where the same 3 tones are repeated throught the song.

It's decent when played through a small amp at home, but turn it up or run it dry through a PA and the poor sound quality becomes a problem. You could probably make it better with a few other pedals, in my opinion not worth the effort.

To sum it up: cheap gimmick that you will probably never use.
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Just great
UncleMatt, 16.06.2020
By far the best bass synth I've ever tried. Tracking is really good as well as sounds.
If you're looking for this kind of sound, this is a must-have.
Very well built and robust.
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$120 €101.72
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The price in USD is a guideline price only!

Available immediately
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This item is in stock and can be dispatched immediately.

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