Search  for anything...
JOYO

JOYO Analog Distortion Guitar Pedal, FAT/MOSFET Toggle with DISTORTION/FILTER/VOLUME Control, True Bypass (SPLINTER JF-21)

Based on 207 reviews
Condition: New
Checking for the best price...
$37.99
Save $2.00 was $39.99

Buy Now, Pay Later

As low as $9 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Oct 30 – Oct 31
Order within 6 hours and 25 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

Recently Viewed

At a glance

Condition
New
Style
Filter,Distortion
Color
Cyan
Model
Manufacturer-JOYO-JF21-0010US
Dimensions
4.72 x 3.86 x 2.17 in
Weight
390 g
Voltage
9 V DC
In the box
1 x user manual
Warranty
1-year manufacturer warranty. We stand behind the quality of our product. This warranty covers any manufacturing defects in materials or workmanship for one year from the date of purchase. If you encounter any issue, please contact us directly. We will provide a replacement, repair, or refund after we receive and verify the returned item.

Features 4

  • CLASSIC ANALOG DISTORTION FUZZ & DISTORTION HYBRID TONE: The SPLINTER delivers a thick, saturated distortion tone through an all-analog design, blending elements of fuzz and distortion for a uniquely aggressive voice. From tight, articulate crunch to raw, roaring fuzz, the pedal covers the full spectrum of gritty, grungy tones with a touch-sensitive dynamic response that reacts naturally to picking attack and guitar volume adjustments. Players describe the sound as having "a great edge of breakup sound" and appreciate its versatility across a wide range of playing styles.
  • FAT & MOSFET TOGGLE SWITCHES TWO UNIQUE VOICINGS: Two independent toggle switches provide additional tonal flexibility. The FAT switch adds thick, powerful low frequencies, suitable for heavy riffs and filling out single-note solos with a fuller presence. The MOSFET switch engages germanium diode clipping for a softer, more vintage feel with smoother compression, ideal for classic rock, blues, and dynamic lead playing. When MOSFET is off, the pedal uses silicon diode clipping for a brighter, more aggressive modern edge. Note: the difference between MOSFET and Stock clipping is most noticeable at higher DISTORTION settings; at lower gain, the differences become more subtle.
  • 3-KNOB CONTROL DISTORTION, FILTER & VOLUME: Sculpt your signature distortion tone with three intuitive controls. DISTORTION sweeps from subtle, edge-of-breakup grit to full-on, saturated fuzz. Start around 9 o'clock for tight crunch, push past noon for aggressive metal, or max it out for raw, roaring fuzz. The FILTER knob is a powerful tone-shaping toolturn it clockwise to roll off high frequencies for a darker, smoother voice, or counter-clockwise for a brighter, more cutting presence. VOLUME adjusts overall output from unity gain to a boost that can push your amp into natural overdrive.
  • SOCKETED OP-AMP CHIP FOR CUSTOMIZATION: Unlike most distortion pedals that lock into a fixed sound, the SPLINTER features a socketed OP07DP op-amp chip that can be easily swapped for other popular chips to fine-tune tone. Different op-amps produce slightly different gain structures, compression characteristics, and harmonic content. Players confirm the JOYO version is "more responsive to the OpAmp changes in a way that you can actually hear." Note: opening the pedal to swap chips will void the warranty. Please ensure you are satisfied with the stock sound before attempting any modifications.

Specs 24

Brand JOYO
Style Filter,Distortion
Color Cyan
Product Dimensions 4.72"L x 3.85"W x 2.17"H
Item Weight 390 g
Voltage 9 V DC
Amperage 20 microamps
Audio Output Effects Distortion,Compression

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 30 – Oct 31

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

Great little pedal
Style: Filter,Distortion
For the money it's a great little distortion pedal. It's nice and clean works good. The switches are very subtle. Tongue control is decent. I like the fact that it does not introduce a lot of noise versus gain.
Reviewed in the United States on October 22, 2023 by Brandtly
Most features for least $$!
Style: Compressor
Good luck finding a compressor with these features at this price point. This mostly transparent sounding pedal is really great. The gain reduction meter is really helpful in dialing in your attack and release settings. I find that attack is fairly easy to set by ear on bass but setting the release benefits a lot by having a GR meter. I wanted a compressor with adjustable attack because the low B on a 5-string doesn't always work well with compressors. Adjustable release was a bonus for me. The GR meter was probably the biggest feature that drew me to this pedal considering most pedals with this feature are 2-3x the cost. The Avallon compressor also handled the very hot output of my active 5-string bass with ease. To achieve unity gain for me required the Input gain very low, about 8-9 o’clock, amd the Output very high, about 3 o’clock. For transparent compression on bass, I liked the ratio at about 6:1. This had the GR meter bouncing down to the middle of its range. Oddly enough, I returned this pedal. This was a seriously difficult decision to make. I loved the way this pedal evened out my bass playing at home! Sounded so much more professional and steady! So why the return? When I went to band rehearsal it seemed like my bass just got lost in the mix. I was losing some definition that was making it difficult to discern my notes. It dawned on me that I prefer to have parallel compression for bass. The one feature this pedal does not have that I want is a blend or dry mix. I considered purchasing a couple of ABY pedals to work this in, but the cost of 2 ABYs + this pedal would push into the price range of a lot of other pedal options. Build quality was impeccable. Lovely paint finish and clear screen printing. Knobs did not look cheap and had respectable resistance to rotation that left me confident settings would stay where they should. Housing, switch, and in/out jacks were all secure. The bypass switch is soft (no click) and the unit powers up in the baypassed state regardless the state it was when powered off. Active light is a bright green of the same hue as the chassis light feature. GR LEDs are soft white (slightly yellowish), bright but not blinding. The GR meter was fast and appeared to track accurately. Though I think it skipped a couple of notes when playing very fast (the lights not the compression). I’m not confident of the scale of the lights though. They are marked -1 at least reduction and -30 at greatest but the LED values inbetween are not identified. I don’t think the range is linear and I’m not confident that the furthest value is -30 dB. In the middle does not sound like -15 dB gain reduction to me, nor does maxing out sound like -30 dB. Maybe the values are not dB at all. I don’t know and the manual nor website define the value. I think you get what you need from the meter regardless what each LED value indicates. The Release knob operated counter to what I expected. Considering that the Ratio increased as turned clockwise and the Attack time likewise increased clockwise. But the Release must be from slow (large time) to fast (small time). Neither the Attack or Release knob ranges are marked or explained in the included pamphlet. Similarly, the Input and Output level knobs have no range identified. I’m not confident that the ratio values are correct either as the minimum setting did not sound like 4:1 compression to me. Regardless the accuracy of the markings, you should have no problem dialing in your preferred amount of compression. I would call the knobs an Input gain and an Output level. The reason is because the Output knob appears to be primarily an attenuator with little gain. This is to be expected as there is no threshold knob. Which means the threshold is internally fixed and you increase the Input gain to push the signal above the threshold. This method is common to many compression pedals. For guitars and passive basses increasing the input gain moderately is needed to exceed the threshold. But for hot signaled active basses not much gain is needed to reach threshold. I was pleased to find that some gain was necessary for my active bass, meaning the direct signal did not go way above threshold. The Input gain is also an attenuator as the pedal is muted at its minimum setting (fully counter-clockwise). One last thing to note is that this pedal requires 120 mA which is clear in the description but I had overlooked before purchase. It still worked on a 100 mA output from my power brick, but I did end up moving it to one of the 300 mA jacks (thinking low power may have caused the missed GR metering on fast notes). I’ve since returned the power brick I had and ordered one with all 300 mA outputs because a lot of the pedals I’m interesred in draw more than 100 mA. IMO, JOYO could add two more features to this pedal and double the price tag and it would blow all competitors away. A blend knob and a high-mid emphasis knob. I guy can dream, right? ... show more
Reviewed in the United States on August 27, 2022 by I. Beckley
Changing my review …
Style: Distortion,Overdrive
Takes some time learn just like the pedals they are cloning , which I’ve owned most and still have a few …. And they are discontinued , but are really genius by a genius innovator I used the classic way back . To the point of this Oxford , T first I was not happy with noise on the high eq , but like the others I need to cut it for real clean or darker preferred sounds in the high gain territory .and always keep it cut a bit … The control of voice gain and high and level are interactive and have to be adjusted to understand the interrelated effects , just like their predecessors. But what I discovered before I was going to send it back is it really does offer a nice range of eq amp sound that are tonefull in a clean and slightly gritty way . I used a Firebird thru strymon big sky and boss re 20’space echo , Lesley comp plus and some overdrive stacking but it sounds good on its own with that slightly gritty sound and does saturate pretty well … I’m impressed for the price , question how long will the innards last and the pedal before it goes south in anyway …, I dunno but it was cheap ! I. Bought the Cali and I’m go test it out now !!! I will say the eq on my blonde and Leeds are a cut above but these clones are pretty cool s far … worth owning from first impression esp for the price ! ... show more
Reviewed in the United States on April 10, 2023 by james muckleroy
Amazing 5150 Style Distortion
Style: Distortion,Amp Sim
If you’re looking for an budget distortion pedal to run into the clean channel of you amp, look no further! I am quite the distortion pedal aficionado, and this is by far the most “amp-like” distortion pedal I’ve ever played. When activated, it feels more like switching to the distortion channel on an amp that it does simply distorting your signal, if that makes sense. It’s definitely the only pedal I’ve tried in this price range to do that. It’s a clone / similar circuit of the Apex Devices Horizon Preamp, which itself is based on the MXR 5150 OD. If you’re looking for that sound on a budget, as I was, I think you’ll be more than satisfied! I A/B’d this pedal running through the clean channel of the STL Tones Emmisary amp plugin, and then with the Meridian 65 (6505) amp model on their AmpHub plugin. Used the same IR’s for the test, of course. It got insanely close. Which I think is absolutely insane. Essentially… it’s a 5150 in a pedal, on a budget! For this price, get one! I don’t think you’ll be disappointed. I’ll definitely be ordering more Joyo R-Series pedals in the future! ... show more
Reviewed in the United States on October 22, 2023 by RJ Delgadillo
Not Bad at all
Style: Metal,Distortion
I have bought three of these. They are all a little different from one another, but not drastically some have a little more higher noise floor than others. The tone is a little different from one to one, but all pretty close. If you want something to sound like a dual rectifier it gets pretty close.
Reviewed in the United States on August 14, 2023 by Shaznackle
Chopper Z
Style: Distortion,Amp Sim
Tremendous tone . It's not an over the top over saturated noise machine like a lot of other pedals , it's not pedal that sounds like a swarm of bees . It just has tremendous tone and tweakable but not to the point where the pedal sounds drastically different in the different settings . That good because it's takes the guess work out of setting it. It has a noise gate feature and it not the best noise gate but it helps if your guitar that feeds back , one of mine does but the nice thing is is that this noise gate does not take away anything from the tone like some noise gates do. For metal it's great . It has more than enough distortion for playing any kind of metal . I think where this pedal really shines is when you solo with it. Each note comes across loud and clear , easy to reach pinch harmonics and harmonics in general . This is the best heavy metal distortion pedal I've ever used and I've used many including Boss pedals , EHX , Donner etc. ... show more
Reviewed in the United States on October 16, 2023 by METAL JEFF
How it works
Checking for best price...