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Zoom B1 FOUR Bass Multi-Effects Processor Pedal, With 60+ Built-in effects, Amp Modeling, Looper, Rhythm Section, Tuner, Battery Powered

  • Based on 1,342 reviews
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Availability: Only 6 left in stock, order soon!
Fulfilled by K&M Camera Since 1976

Arrives Jun 22 – Jun 23
Order within 10 hours and 37 minutes
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Style: B1 FOUR


Pattern Name: Processor


Features

  • 65 built-in bass effects and 9 amp models
  • Free download of Zoom guitar lab Mac/Windows software
  • 30-Second looper
  • 68 built-in rhythm patterns
  • Standard Guitar input, aux input for external audio players and amp/headphone output

Description

The Zoom B1 FOUR helps you and your bass set the tone with over 60 effects and amp models, Looper and a built-in rhythm section. Plus, Access Zoom guitar Lab’s library of downloadable effects.


Item Weight: 1.41 pounds


Product Dimensions: 6.2 x 5 x 1.7 inches


Item model number: B1 FOUR


Batteries: 4 AA batteries required. (included)


Is Discontinued By Manufacturer: No


Date First Available: January 21, 2019


Color Name: Red, Black


Hardware Interface: USB


Signal Format: Analog


Battery type: Alkaline


Power Source: Battery Powered


Voltage: 9 Volts


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 22 – Jun 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Better than I thought!
Style: B1X FOUR Pattern Name: Processor
I play bass for the all pro band Rat Soup so quality sound is a high priority. I typically don't use effects and have always wanted to try them so I purchased this unit. I was not disappointed. A pure signal chain is important to me so I wanted a clean bypass. The bypass signal is very close to the original. So it's not so big of a loss in a live performance, but I would not record with it. As far as tones, there are some great ones and they sound pretty close to the actual stomp boxes. So if you are on a budget and want to try out some different amp tones or effects this is a cool pedal. I love the syth, wah, auto way, and pitch bending effects. For the money this unit is well worth it. Some people complained the wah is not that great, but to me it sounds good. I have a Morley bass wah and this thing is close. As far as usability and gigging . . . I couldn't find a way to bypass a patch other than create a clean patch and jump to that from the patch I want to use. That's fine if you only use one patch, because you'll have to scroll to patches you want to use rather than turn it on or off. You can use the pedal in stomp box mode where you can turn off individual effects with the pedal but not the group. My work around was to use a bypass pedal with this unit. Then I can utilize my pure clean signal and jump to and turn on or off an patch for the whole or part of the song. The looper is cool, but it does not retain the recorded loop after you power down the unit. I wanted to use the loopper to play a sample while playing live, but that's not going to work unless you record the sample right before you play. The tuner is great. So for a practice tool with a tuner and a mini drum machine AND the ability to play with some effects, it's awesome! If you're looking for gigging with great sounds then stick to stomp boxes. But if you want to test out effects and play a few live with a bypass pedal then get this thing. After thinking about it, I changed this from 4 stars to 5 because of the price and what you get! ... show more
Reviewed in the United States 🇺🇸 on October 19, 2022 by fuadramsey

  • Get ready to rock
Style: B1 FOUR Pattern Name: Processor
This can be easy, like just use the presets that it came with. Or, it can get *way* more complex, as in you can design and modify your own patches on board (kind of challenging) or using the software on your computer (less challenging). The hardest part is probably wrapping your head around all of the pedals/effects available, and starting to learn their shorthand monikers that will be displayed on the limited screen space on the pedal itself. It sounds good. The only reason I dock it a star is that there's no way to turn it off short of unplugging the input cable. I came from Boss pedals which I could leave wired up and just stomp them on and off when I wanted. Now, I have to bend over and unplug my bass when I'm done playing or else the pedal just sits there on for the next ten hours... ... show more
Reviewed in the United States 🇺🇸 on January 15, 2023 by DudeGuy

  • Great Little Machine!
Style: B1 FOUR Pattern Name: Processor
Whoa, if you want some superior bang for your FX pedal bucks, this Zoom B1-4 is the deal of the century! I'm NOT exaggerating. This little jewel is undoubtedly the BEST bass effects pedal I've ever owned or played with. It has everything you'll need, including amp modelling, outstanding compression--the "Glam Comp" setting delivers jaw-dropping sustain, the likes of which I've NEVER heard before--an auto-wah that is a blast to play with, all sorts of nifty filter variations, and even some classic amp tone models right out of the history books. When I first plugged it in and started messing with it, I was astonished by this unit's range and versatility. I could get nearly any tone or amp sound, any kind of filter effect I wanted. It's ridiculously simple to use and has an open, "blank" bank in it that allows you to copy an effect from a different bank into an open slot. It's stupid-easy to set up a series of presets in linear order in the blank bank so that just a touch of your toe cycles quickly to the effect you want. I set mine up with the auto-wah first, then the "hard comp," followed by the "glam comp," with an Ampeg SVT amp model, then a vintage Fender cabinet, leaving four more slots open if I want to add something else, simply by copying the desired patch--a three click operation--into any of the remaining slots. Make a mistake? Easy-peasy: delete it and do it again. Takes less than a minute to reprogram it. Not satisfied with the internal patches? No prob; the unit lets you tweak the parameters to suit your own ears. I didn't get into that; I really liked what I heard. Zoom's engineers really put some serious thought and research into this. There are only two drawbacks: it's made of a relatively lightweight plastic, not aluminum or steel, so it's a wee bit fragile. DON'T drop it! I suggest buying the carrier case that's available. I'm glad I did. It's a hardshell case and protects the unit really well. The other drawback is that some of the patches are a bit...well, WEIRD. One of them is labelled "Explosion." I tried it. Yes, it sounds like someone set off a nuke in the next county. Or a really mean thunderstorm. I dunno, you metal players might find a use for it--but a few oddball patches that I'll never use does not mean a deal-breaker. The price will make your jaw drop, too: around $90. (Zoom might increase the price later. I'm astounded that it's THIS inexpensive.) Shipping will add a bit more and if you get the case, you're looking at a total of around $125 for both. Yes, it comes with a wall-wart that has a nice long cord. All told, the Zoom B1-4 is about HALF the price of a comparable steel or aluminum sheathed unit from any other manufacturer--and it does five times the job. It's clean and quiet enough for recording. Onstage, it sounds frickin' AWESOME. I kick the glam comp on when I hit a low E at the end of a tune and that note will sustain for several minutes. I do NOT exaggerate! No foolin', this is the deal of the century. It's now the ONLY pedal I use onstage for my bass (a Squire Affinity series J-bass with active electronics which is itself an awesome machine.) and I can't see myself using anything else for some time to come. Warning: it will peg the meters on the sound board if you don't give the engineer a heads-up during the sound check. I'm serious. This little beast is POWERFUL. ... show more
Reviewed in the United States 🇺🇸 on July 23, 2021 by Michelle Rose

  • Could be better
Style: B1X FOUR Pattern Name: Processor
Pros good price Cons computer sounds
Reviewed in the United States 🇺🇸 on February 15, 2023 by PB

  • Goodbye pedalboards.....
Style: B1X FOUR Pattern Name: Processor
I got one of these for my guitars and one for my bass. These are SO easy to use, sound great, and they're small. I use these in a practice space in my house, so it's connected to the computer, and I'm not carrying it around or gigging with it. These are so flexible that I don't even use the software that came with the amps, I just run the amps clean and use these for all my effects. And for 1/10th what a pedal board would cost to put together! And a looper too! 2 thumbs up on these things!! ... show more
Reviewed in the United States 🇺🇸 on December 28, 2022 by bob

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