









🎶 Unleash your inner beat architect—where studio power meets pocket-sized freedom!
The Teenage Engineering EP-133 K.O. II is a cutting-edge 64 MB sampler, drum machine, and sequencer featuring pressure-sensitive pads, a fully reworked sequencer with 4 groups and 99 patterns, and advanced punch-in effects. Designed for both live performance and studio production, it offers versatile sampling via built-in mic or line-in, robust connectivity including USB-C and MIDI, and portable power options. This compact powerhouse empowers creators to capture, craft, and perform beats with unprecedented speed and expression.







| ASIN | B0C8BV1RTJ |
| Best Sellers Rank | #7,058 in Musical Instruments ( See Top 100 in Musical Instruments ) #3 in Audio Samplers |
| Body Material | Bass Wood |
| Brand | Teenage Engineering |
| Brand Name | Teenage Engineering |
| Color | EP–133 |
| Connector Type | USB |
| Customer Reviews | 4.4 out of 5 stars 438 Reviews |
| Included Components | Portable synthesizer and sampler, built-in microphone, speaker, and line-in |
| Item Dimensions | 11.02 x 10.31 x 10.31 inches |
| Item Type Name | Pocket Operator |
| Item Weight | 0.79 kg |
| Item dimensions L x W x H | 11.02 x 10.31 x 10.31 inches |
| Manufacturer | teenage engineering |
| Material | Plastic |
| Model Name | EP-133 K.O. II |
| Model Number | TE032AS001 |
| Number of Items | 1 |
| Part Number | TE032AS001 |
| Unit Count | 1 Count |
| Warranty Description | 1 year warranty. |
K**.
An Instant Classic and Creativity Supercharger
As a longtime fan of Teenage Engineering's design philosophy, I had high expectations for the EP-133 K.O. II, and it has completely blown them away. This device is pure, distilled fun. It's a sampler that removes all the friction between having an idea and making a beat, and it has quickly become the centerpiece of my creative workflow. The Workflow: Immediate and Inspiring This is where the K.O. II truly shines. The workflow is incredibly fast and intuitive. From sampling a sound off my phone or its built-in mic to chopping it and sequencing a pattern takes literal seconds. The layout, reminiscent of a vintage calculator, is brilliant. Every button has a clear purpose, which encourages you to play and experiment rather than get lost in menus. The "commit" function, which duplicates your pattern and lets you build on it, is a genius way to evolve a track without losing your original idea. Sound and Performance: The K.O. II has a sound all its own—it's punchy, a little gritty, and full of character. It makes samples sound better just by being inside it. The real magic, however, happens with the live performance features. The "Punch-In FX" are absolutely incredible. Being able to add stutters, filters, and other effects on the fly is not only fun but a powerful tool for transforming a simple loop into a dynamic performance. The pressure-sensitive keys feel great for adding variation to your patterns. Design and Vibe: In typical Teenage Engineering fashion, the K.O. II is a design masterpiece. It's lightweight, durable, and the perfect size to throw in a backpack. Running on batteries and having a built-in speaker makes it the ultimate portable music-making machine. It's a device that begs to be picked up and played with, wherever you are. Conclusion: The EP-133 K.O. II is more than just a sampler; it's an instrument of inspiration. It's perfect for both beginners who want to learn the ropes of sampling and seasoned producers looking for a fun, fast, and powerful tool to capture ideas. It's one of the most enjoyable pieces of gear I've ever owned, and I can't recommend it highly enough.
E**C
Very Impressed
Playing the drums is fun. Playing guitar is fun. So why shouldn’t playing a sampler be fun? I’ve only had one evening with the EP-133 and I have already had more enjoyment with it than I have in 4 years of owning an SP-404SX. I tried for years to vibe with the 404 but it always lead to frustration. I thought if I gave it more time and practice it would click but I gave up and decided to try a new company. As a long-time Teenage Engineering hater I approached the EP-133 with skepticism but it really is as instantly fun and user-friendly as people say it is. Favorite aspects so far: the Punch-in effects and the display. The screen just looks awesome and the icons are really cool and fairly intuitive. I haven’t delved into sampling and deeper functions yet- made one beat and have been spending hours playing with the effects and learning the fader controls. The punch-in effects are so gd fun. Criticisms: I wish the enclosure was aluminum but the overall construction and material quality is very nice. I think people’s complaints about the durability come from the initial batch with the fader issue. I build cabinets and furniture professionally and guitar pedals on the side so I know craftsmanship when I see it. I think this thing is built to last. The potentiometers have a little wobble but it’s absolutely nothing compared to how bad the SP-404’s are. The pads on the EP-133 are very small, tightly grouped, very touch-sensitive and made of smooth plastic, not rubber- so accuracy is an issue. Final thoughts: Thing is friggin sweet. It’s so nice to sit down with a sampler and have fun for once. If you’re on the fence read the manual and if you see no real dealbreakers give it a try. Buy a used one and resell it if you don’t vibe with it.
A**R
My new favorite toy!(with an important message)
Let me preface this by saying I sympathize with everyone who received a faulty unit or damaged the fader when installing the cap. Teenage Engineering cannot sell a product with such a glaring design problem and poor quality control. At the very least they should have the fader cap preinstalled. Now despite that intro, I'm about to do a complete 180 and gush about this little machine. Having received it completely undamaged and opting to use a Lego pumpkin for the fader cap, I have felt nothing but overwhelming joy in the short time I've used the KO II. Having no experience with music production outside of playing around with FL Studio and my OP 1, the KO II is welcoming in its approach to beat-making and anyone can put together a solid track in no time. The illuminated icons and 8-segment display give me all the info I need without needlessly clunky menus, making the musical process feel intuitive. The preloaded sounds feel punchy and the onboard effects, while a little limited, have a lot to offer and don't even get me started on its sampling capabilities. The actual body of the device feels solid in the hand and all the buttons, dials, and slider have a good feel to them(assuming the unit passed QA before shipping). My only real complaint is that the onboard speaker is kind of faint, especially on the lower frequencies but I assume most of you are probably going to use headphones or some other audio output. In conclusion, I have high hopes for the KO II. According to the TE, this is the start of their new "EP" series and from what I've seen on the body it looks like there are Lego peg holes on both sides of the unit which leads me to believe there will be more of versions that can be connected to make an entire EP panel, but I'm getting ahead of myself. In an ideal world, I'd give this my full recommendation to anyone even slightly interested in music production. But the truth of the matter is it wouldn't be fair to everyone who was promised this magically little device and got a hunk of malfunctioning plastic instead. I hope this review does reach TE because I think its message resonates with the community; We love the idea but we're disappointed with its execution.
S**R
Knockout !!! Is not a toy !!
First things first it is not a toy. In my opinion it’s cheaper than it should be. It’s a solid unit mechanical buttons that feel good when you press them. Be warned that you will need to upgrade the software to the latest and greatest but that’s easy to with a browser. And to the most important part the sound. Every sample that it comes with is amazing and sounds great. You can record your own samples and mix like a pro. Yes the song in the video is a sample that I did. It was easy to sample from the built in mic but you can connect to the input jack and sample from there as well. The samples that you record are stored on the device was will. The instructions for this might be a little difficult to master but with YouTube university you can learn everything you will need to know. I have used this with my OP-1 Field as a MIDI instrument and it open a whole new world. If you’re looking for solid sampler, look no further.
S**N
Make Music Instantly
I just got it so I haven’t had too much time with it, but so far this thing is exactly what I was looking for. It is set up so you can make music instantly and easily. I am not in the music industry and have no experience making music with a sampler other than a few attempts at the KO pocket operator. I tried the SP-404mkii but it was way too daunting to figure out for me (and the velocity pads on mine were defective). However, this thing is set up so you can start jamming as soon as your turn it on and it’s simple enough for beginners. As with any teenage engineering product I’ve bought, it can do way more than I expected and I look forward to learning more about it. I have an OP-1 I intend to connect this to once I play around with it more. The TKO ii is more user friendly than the OP-1 in my opinion. I had no issues with the Fader but I babied it while attaching the knobs knowing it was an issue for some. Hopefully they have just corrected it. I sprang for it knowing some reviews were bad and I don’t regret it so far. I’ll update if anything changes.
J**N
Good good 👍
Exceeded my expectations, it’s so much fun to use it really helps you start getting ideas down quickly. I plug it to my computer with usb c to c and from there I use midi pipe to connect my midi keyboards, it lets you input to patterns with the full key range. You can easily plug it to your phone to draw samples from anything on your phone too like garage band or synth one.
T**R
Tight Package Looks Good… Bad Fader
After debating weather to get the original K.O., I recently discovered the K.O. II and started to look into it some more as I had been interested in a proper sampler and not just use my Casio SK-1 or Yamaha VSS-200. After reading about the complaints regarding the fade slider having issues, I decided to bite the bullet. The price wasn’t terrible and I figured I’d get it because my electronic capabilities would be sufficient to replace the slider if needed. I got the sampler and I have to say that the packaging looks great. It instantly invokes the thought of a record LP. My wife was even surprised at the packaging, as it did not look like a synth package. Opening the package was a challenge. That thing is in there extremely snug. There are finger holes to remove the sampler but if you tug too hard you will probably rip the outside sleeve. I gently shook it out on my bed with my finger guiding it. So far my biggest complaint stems from the packaging. While beautiful and extremely functional, it may be too functional. Like an IKEA box, no space was wasted, and this led to the curiosity of why Teenage Engineering shipped this without the knobs attached on the slider and pot. Not attaching the knobs only saves about 1/4” of space and they surely could have made the box bigger to account for such dimensions. I would think this might alleviate some of the issues people have had with the knobs, as I have read it may stem from people attaching them to firmly but as I opened the box, I also noticed marks on the inside where the packaging rubbed against the knob less pots and slider. I am sure that any good hit or jostling could potentially cause some damage, like when you ship a Faberge egg with zero packing peanuts. I followed some YouTube video suggestions carefully, such as gently attaching the knobs and when it came to the slider, not pushing it all the way down and attach the knob while the slider is positioned all the way up or down. I did notice the knob on the slider was a bit harder to get on than the volume or BPM knobs. The unit itself feels well built and while the buttons are plastic, the tapping seemed alright and played into the retro aesthetic. The lights and display are very intuitive and the inner packaging has a quick start cheat sheet. I wish there was a heavier duty instruction manual but I knew going in that probably wasn’t going to happen knowing Teenage Engineering. I was able to start making my own sound bank within 5 minutes. So overall, I feel this thing is worth the money. Who knows. Firmware updates in the future may resolve some issues and if they do a revision on packaging or components you might be able to get this one at a good price, although I doubt it as their products seem to hold value really well. …and after a thorough testing the fader is broken out of the box. Does not respond one bit. Looks like this will be returned and while the sampling and use seemed easy out of the box, what good is it if this is faulty from the beginning?!
M**L
No issues here!
This is a super fun sampler. I love that it comes with a bunch of preloaded one shots so you can start messing around right away even if this is your first sampler. The folks at TE have immaculate taste and most of the sounds are actually worth keeping on the device in my opinion. No build quality issues here; fader is perfectly fine. Either I’m lucky or they’ve made some adjustments. This is really a 4.5, but I’m rounding up to 5 because the current score of 4 overall is too low in my opinion for how fun and inspiring this device is. Here are the nitpicks that I think keep it from being a true 5/5 in my book: 1. 64 mb of store space is abysmal for a sampler in the 2020s. I get that TE wants to impose some limitations (like how the OP-1 tape is limited to four tracks) but this is a bit extreme IMO. Even double the space would be a pittance in terms of cost but would make the device easier to use while still having those inspirational limitations. 2. No song mode sucks. I wish you could program and save a chain of patterns to arrange a song like you can on the OP-Z — you can even do this on some of the Pocket Operators even though they are 1/3rd of the price! 3. No resampling is somewhat limiting. The FX on this device are incredible, but you can’t use more than one per project. Resampling would serve as a workaround to allow layers and combination of effects to be applied to a sample. This is a wonderfully fun sampler/musical sketchbook. I have some nitpicks, but overall I’m shocked at how much you get for the price — the value is there, which is wild considering who made this product. I hope the success of the EP-133 inspires TE to find a way to keep releasing more midrange products — devices that are more robust than the Pocket Operators but much more affordable than the usual stuff. That $300 - $500 range of the EP-133 and OP-Z is the sweet spot in terms of price, and I hope they keep returning to it.
B**.
So much fun in a small package!
I said what I said.
F**F
Parfait
Produit reçu avec le nouvel emballage, aucun problème de casse ou quoi que ce soit comme le disent les commentaires plus vieux
A**R
Missing parts
Mine arrived with the fader and encoder knobs missing, the box was also scratched up and dirty, didn't look like a new device
G**O
Sigo aprendiendo del equipo. Muy recomendable
El equipo tiene una excelente calidad de construccion. El problema que enciende Aveces y otras no. Aaa ya descubrí que hay que darle a la tecla enter. Quizá lo que aparece en pantalla al.inicio es algún mensaje el cual no supe desifrar La calidad es muuuy buena y muy recomendable el equipo. Aún sigo descubriendo trucos.. Me sorprendió la calidad y lo practico que es.. En lo personal losmcompre con un descuento. Tuve suerte... Saludos
H**S
Onderdelen ontbreken
Let op: wordt als brievenbuspost verstuurd. Doordat het niet door een brievenbus past,levert dit problemen op bij bezorgdienst. Eerste pakket is kwijtgeraakt. Tweede pakket werd pas bezorgd na 2x contact met Amazon. Bij openen pakket ontbraken de knoppen.Contact opgenomen met fabrikant: geen reactie. Niet hier kopen,koop ergens anders!
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