Bass amps, effects, drums and a looper with an expression pedal – small enough for your gig bag. The Zoom B1X FOUR is a compact bass multi-effects processor with over 70 built-in effects, 9 amp models, a looper and a rhythm machine, plus a built-in expression pedal. It works with active and passive bass guitars.
Why customers choose it
Who it is for
Bass players starting out, students practising on headphones, and gigging bassists who want a light pedal that fits on any pedalboard.
What’s in the box
- Zoom B1X FOUR multi-effects processor
- Quick Guide
- Bass Patch List
Specifications
| Effects | Over 70 built-in |
|---|---|
| Amp models | 9 |
| Simultaneous effects | Up to 5 |
| User patches | 50 |
| Looper | Up to 30 seconds / 64 beats |
| Rhythm patterns | 68 |
| Conversion | 24-bit, 128x oversampling; 32-bit processing; 44.1 kHz |
| Display | 128 x 32 dot-matrix LCD |
| Inputs | INPUT (1/4″ mono, 470 kOhm), AUX IN (3.5 mm stereo) |
| Output | 1/4″ stereo jack, line/headphone (17 mW + 17 mW into 32 Ohm) |
| Input S/N | 120 dB |
| USB | Micro-B (Guitar Lab, power, firmware updates) |
| Power | 4 AA batteries (about 18 h alkaline, backlight off), AD-16 adapter (9V DC, 500 mA, centre negative) or USB |
| Size | 216 x 156 x 52 mm (W x D x H) |
| Weight | 610 g (without batteries) |
| Dimensions | 6.220476 × 8.503942 × 2.007875 in |
| Type | Bass multi-effects with expression pedal |
| Patch Memory | 50 user patches |
| Battery | 4 x AA, about 18 hours |
| Voltage | 9 Volts |
| Amperage | 9 Amps |
| Controls Type | Knob |
| Signal Format | Analog |
| Style | Pedal |
| Colour | Red |
| Sound Profile | Bass Multi-Effects |
| Item dimensions L x W x H | 15.8L x 21.6W x 5.1H Centimeters |
| Item Dimensions | 15.7 x 21.6 x 5.1 Centimeters |
| EU Spare Part Availability Duration | 1 Years |
| Connector Type | 1/4 inch (6.35mm) jack |
| UPC | 884354020705 |
| Global Trade Identification Number | 00884354020705 |
| Included Components | 1 N Quick Guide, 4 N AA Batteries, 1 N Patch List |
Good to know
- The AD-16 power adapter is not in the box; the pedal also runs on 4 AA batteries or USB power.
- Use a USB cable that supports data transfer for Guitar Lab – a charge-only cable only gives power.
- Plug headphones into the output jack for silent practice.
FAQ
Can I practise with headphones?
Yes. The output jack works with an amp or headphones.
Does it need a power adapter?
No. It runs on 4 AA batteries or USB power, or you can add the Zoom AD-16 adapter.

























suvajit das –
Must buy
Awesome
Shivraj Karkera –
Absolutely wholesome
I use this for my acoustic gigs, there’s looper with which you can record a section of rhythm and play solo/lead over it. The built-in clean tones are great, but distortion tones are grainy, so just download Zoom Guitar Lab software on your pc, and there’s a huge catalogue of awesome pedals and effects that you can add or replace in your device. It is absolutely possible to get great distortion tone by doing that. You’ll also get effect chain settings on youtube/internet to make tones for a particular song/band. It can be powered using usb power bank. The price here is the best price, shops sell it for 11,500. Ajun kaay pahije?
Velton Angelis D’silva –
Best Beginner Friendly Console!
If your are learning about sound effects on bass then you might want to go for this console as it will provide you with a base to learn how each effect works or how the ensemble will end up with different pedals as this console has the capability to give you the emulated sound of multiple stomp boxes in a chain effect.
Rudraksha Chandel –
Extremely good for clean tones
Go for it if you want some basic clean tones for live gigs, think about buying it like compressor with additional effects. Sounds really good if you have a good bass.
Natha –
best processor with a good price
great processor, better if you got an active bass, eats alot of battery though, i use duracell ultras for this processor and it runs out after few practice sessions, however there’s an option to plug in a type b cable to make it work, so its ok.
Shaswat –
Best pedal for the money
Great pedal with great tones
Vikram roy –
Great purchase.
Zoom rocks
Himanshu –
Good
Didn’t knew what to expect but bought it from my previous experiences with zoom
Good enough for live performances
Not for recording bass thought
Overall kickass product in it’s range
Fernando Silvestre Maciente –
Qualidade de som e muitas opções de efeitos
Antes de comprar já tinha pesquisado bastante. E notei que toda essa linha de entrada da Zoom era muito elogiada por quase todos, pela qualidade e versatilidade do produto. E isso só se comprovou ao comprar o produto.
Eu queria alguns efeitos pro baixo, mas comprar os pedais separados o preço ficaria muito alto. A pedaleira acabou sendo uma opção, e me atendeu muito bem.
Pequenos detalhes que eles tiveram cuidado, e me chamaram atenção:
– Opção de desativar pedais do “pedalboard virtual” só utilizando os pés. Tenho pedaleira de guitarra que só consigo desativar um efeito abaixando e apertando pelo menos uns 3 botões. No meio de um ensaio ou show, isso pode ser um problema;
– Os pequenos botões para mexer nos efeitos com a mão;
– Facilidade de uso com o GuitarLab. Já conhecia o software com a H8. Ele é bem prático, pois é possível editar os efeitos no computador, ouvi-los em tempo real, e baixar novos efeitos que não estão originalmente na pedaleira.
Única coisa que não sei se será problema a longo prazo é o corpo de plástico dela. Estou acostumado com pedais e pedaleiras da Boss, de metal, que são bem robustos. Vamos ver com o tempo. Mas parece ser de um ótimo material.
Minha única reclamação de verdade fica para a Amazon, que enviou um transporte de gato no lugar da pedaleira. Pedi a troca, e demorou mais de 1 mês para eu receber o produto correto. Foi admitido que foi vendido sem ter o produto no estoque. Detalhe: comprei ele diretamente da Amazon. Confio demais na loja, e não esperava ter esse tipo de problema. Mas no final foi resolvido.
Jose F. –
Game changer
I wanted a little more spice on the bass and so investigated about bass pedals. This is literally the cheapest, serious looking, one. I checked reviews and decided to go ahead with the purchase.
It’s great really. It has a looot of effects, you can either use pre-built effects or make your own. I used the free 50-59 slots for my own sounds, there are even some sound effects/processors that don’t appear on the stock patches that are very interesting. It also allows to eq (low, mid and high) the output as well as increase volume by 27% (max volume is 127%).
I didn’t realize after buying but it has an AUX In port, so you can connect your phone on computer and play backing tracks if you desire!
The looper and prebuilt drums work great for practicing, the drums sound pretty generic it would definitely be nice to have the chance to upload custom drum patches.
I use a micro-usb to power it but it can also run on batteries making it very versatile. All and all I would definitely recommend it. I bought it for $120 and consider it worth it, If on discount to $100 don’t think twice (I tried sniping a discount but got impatient hehe)
Dark red color is great also.