The 6 Best Amp & Cab Simulator Pedals in 2026

In our deep dive into the world of amp modelers, the Walrus Audio MAKO Series ACS1 stood out as a top contender. We’ve spent some quality time with this pedal, and here’s our balanced take.

Here are the quick highlights:

• It models 3 amps - Fender Deluxe Reverb, 1962 Marshall Bluesbreaker, and a '60s Vox AC30
• It is a compact/standard pedal size
• It can run in stereo (in and out), has a headphone jack for quiet practice, MIDI, and USB for updates
• It has built-in boost
• It can store 3 presets onboard

No issues with build quality. It feels like most Walrus pedals - rock solid - and looks elegant and gorgeous. Unlike some other amp/cab sim pedals that are huge, the ACS1 is “standard” stompbox size, so that alone is a great reason to choose it, for those of us with tight pedalboard space.

The user interface is intuitive, quickly becoming second nature without the need to perpetually reference a manual. You have 3 dials for the EQ, BASS/MID/TREB and 3 dials for the actual amp settings, VOLUME/GAIN/ROOM. ROOM adds a nice spatial effect that can bring your playing to life, but keep in mind it won’t replace a dedicated reverb pedal.

We appreciated the ability to store 3 presets, which allowed us to quickly switch between our favorite settings. The stereo recording capability through two different amps is a game-changer, offering a depth and richness that's hard to beat. Also you can set the left and right channel to different amp models, which we’re honestly not going to use much but adds some crazy versatility.

Updating the firmware was straightforward, although we did find it a bit browser-sensitive; Google Chrome worked best for us. The ease of updating and loading IRs directly through the browser (walrusaudio.io) without needing additional software was a huge plus, streamlining the whole process.

When it comes to sound, the ACS1 delivers. The clean tones, especially through headphones with the Fender Deluxe Reverb model, are stellar. We found the natural amp tones to be convincing, and the pedal handled our other pedals admirably. The built-in IRs and room knob enhance the sound quality, providing a diverse palette of tones suitable for various genres. However, we did notice a slight roll-off in the top and bottom ends when pushing into higher gain territories. And speaking of gain, it tops out at a “crunchy overdrive level,” which might not satisfy those seeking a more aggressive sound (but hey, that’s what distortion pedals are for).

Despite these minor quibbles, the ACS1 offers great value for money. It's an excellent tool for silent home practice with its headphone output, and works impressively well in live settings.

Bottom Line: The Walrus Audio MAKO Series ACS1 is ideal for guitarists seeking a reliable, feature-rich amp modeler with high-quality sound and ease of use. Having a Fender, Marshall, and Vox at the flip of a switch is so much fun. Arguably the best part is how incredibly easy the ACS1 is to dial in. It has most of what you need without having to dig into digital menus. However, it might fall short for those needing higher gain textures. For us, the ACS1 is one of the top amp/cab sim pedals out there, offering a blend of functionality and tonal excellence that justifies its price.

Widely regarded as one of the gold standards in amp and cab modeling, the Strymon Iridium has made a significant impact in the world of guitar pedals. With Strymon's solid reputation for reliable and high-quality products, does the Iridium live up to the hype?

Right from the unboxing, the Iridium immediately impressed us with its sleek aesthetic and robust build quality - it’s a Strymon product after all. It measures about 4 inches wide, which should fit seamlessly into most pedalboard setups without dominating space (note that it is a bit wider than the Walrus ACS1).

Guitarists tend to appreciate amp/cab sim pedals for their relative simplicity, avoiding the need to wade through digital menus. The Iridium truly delivers on this front, offering one of the simplest interfaces among amp sim pedals we tested. Of all of them, this had the most intuitive and user-friendly controls, making it a great choice even for those who get intimidated by complex gear.

The pedal offers three amp models:

• round (Fender Deluxe Reverb)
• chime (Vox AC 30TB)
• punch (Marshall Plexi)

Each of those can paired with three cabinets, for a total of 9 stock tones to choose from. The three-band EQ (BASS, MIDDLE, and TREBLE) allows for quick and effective tone shaping. Additionally, the Room knob adds a touch of reverb to emulate a real-life amp in a room. It won’t replace a dedicated reverb pedal, but it sounds really nice and truly does make the space feel bigger.

One standout feature is the ability to load third-party impulse responses (IRs), providing endless possibilities for customization. We also appreciated that the Iridium takes other pedals well, from overdrive to distortion, making it a versatile addition to any setup. However, it's worth noting that you can only store one preset, which might be a limitation for those who need quick access to multiple settings.

When it comes to sound quality, the Iridium is truly impressive. The tones are convincing and close to real tube amps, making it a fantastic option for both recording and live use. Whether dialing in clean sounds with the Fender Deluxe Reverb amp model or pushing high-gain boundaries with the Marshall Plexi, the Iridium delivers great tone and responsiveness across various genres. It’s hard to pinpoint exactly what it is, but the Iridium just has this extra presence and “width” when A/B testing it alongside other amp sim pedals (note that the Marshall model can get a bit noisy with high gain, but adjusting the settings can mitigate this issue).

The Iridium's stereo in and out, along with a mono/sum/stereo switch on the back, offers flexible routing options. The inclusion of a headphone jack is a feature we love for silent practice, adding to the pedal's convenience.

Bottom Line: In no world will the Strymon Iridium disappoint you - it's an absolutely stellar-sounding and convincing simulation of real tube amps, especially with a high-fidelity sound system or great headphones. It's perfect for studio recording, live performances, and silent practice. We cannot stress how easy it is to just plug it in and dial in an amazing amp tone. That simplicity COULD however be a drawback for tone snobs who demand surgical precision when it comes to tone shaping options.

Honestly the high price tag is the biggest ding we can come up with. If the price were $100 lower, it would be close to perfect. Given its price, it opens the door to comparison shopping with other amp sim pedals on this list, which are all great in their own right.

From a lesser-known manufacturer compared to the likes of Boss, Strymon, or Walrus, the Nux Amp Academy costs considerably less than your average amp/cab sim pedal. There’s a lot of noise about it on YouTube and forums, with some even calling it a "Strymon Iridium killer." So, we had to get our hands on it and see for ourselves.

Upon unboxing the Nux Amp Academy feels robust and well-built, with a hefty weight that suggests durability. The casing is solid, and the switches, knobs, and jacks all have a reassuringly sturdy feel. The aesthetic is reminiscent of classic Marshall amps, giving it a vintage vibe that many musicians will appreciate.

One of the most striking aspects of the Amp Academy is its extensive feature set. It boasts six built-in amp models and 12 cab sims, with the ability to load custom IRs. Many amp/cab pedals tend to cover the “big 3” - Fender, Vox, and Marshall. The Amp Academy bucks this trend, opting to model the likes of Fender, Mesa Boogie, Friedman, and Bogner.

The I/O of this pedal is one of its strongest aspects. It has an effects loop, DI out, USB-C audio interface, AUX in, and a headphone out. The downside is that it’s mono, not stereo, which is a bummer but likely not a deal-breaker for most. The range of features is impressive, offering great versatility and control over presets. The inclusion of both a 1/4” output and an XLR output ensures compatibility with a wide range of setups, making it suitable for both studio and live use.

In fact, if you play live or have a complex routing setup, you’ll really appreciate the Nux Amp Academy’s I/O. The ability to set three “scenes” for each amp model adds another layer of flexibility, allowing for quick and seamless transitions between different tones during performances.

In terms of sound quality, the Amp Academy delivers, especially with its Fender amp models. We found that it takes pedals well, making it a versatile addition to any pedalboard setup. However, the built-in IRs were less impressive, often sounding fizzy or harsh unless meticulously configured. High-gain amp models, while good, didn’t shine as much as the cleaner, Fender-inspired tones.

While the Nux Amp Academy offers excellent sound quality, it is not quite a plug-and-play pedal like the Strymon Iridium. The real power of this pedal lies in the Amp Academy editor software, which provides an impressive array of editing tools, EQ, and various effects. However, unlocking its full potential requires a significant investment of time, watching YouTube tutorials, and patience in front of your computer. You also need to ensure that you have the latest firmware update installed.

Reliability is a bit of a concern. The first unit we received wouldn't power on, and we had to send it back for a replacement. Additionally, other users have reported issues such as noise problems developing over time. This might just be one of the trade-offs for the lower cost of this unit.

Bottom Line: For us, the Nux Amp Academy is a mixed bag but ultimately worth including on a list of the best amp/cab simulator pedals. In our book, the biggest knocks against it are that 1) it’s not stereo, 2) it might me prone to reliability issues, and 3) to get the best out of it you have to be willing to spend some time with the software editor.

But here’s the great news - the Amp Academy is roughly HALF THE PRICE of a Strymon Iridium, and that’s significant. The fact that it has an in-depth software editor isn’t even necessarily a negative - it’s just that we believe most guitarists appreciate being able to plug in, twist some knobs and have their rig sound amazing right off the rip. All that said, the Nux Amp Academy is versatile, looks great, sounds great, and features some of the best I/O options we’ve seen regardless of price point.

The unique thing about the Universal Audio Dream '65 Reverb Amplifier Pedal is that it's a bit one-trick pony - it focuses solely on replicating the 1965 Fender Deluxe Reverb amp, capturing its nuances, as well as spring reverb and tremolo effects. Most other amp sim pedals aim to emulate several iconic amps from different manufacturers, so it begs the question, does UA's hyper-focus on this one amp tone result in magic?

Right out of the box, the Dream '65 exudes a sense of quality. The pedal is solid and durable, with a weight that feels substantial. The design is clean and intuitive, featuring well-labeled controls that make it easy to dial in the perfect tone. The fit and finish of this pedal are what we've come to expect from Universal Audio, known for their high-end studio gear. The aesthetics do have a certain Fender amp vibe to them.

The controls on the Dream '65 are straightforward and useful. The knobs are mostly self-explanatory, with some controlling different things depending what mode you're in. The SPEAKER switch allows you to cycle through three different speaker models, each with a unique character: the GB25 (Vintage Celestion Greenback), the original Oxford 12K5-6, and the EV12 (Electro-Voice EVM12L). The MOD switch offers three settings: stock sound, LEAD (an '80s overdrive special modification), and D-TEX (an SRV modification). These mods add a level of versatility that makes the pedal suitable for a wide variety of genres and playing styles.

When it comes to sound, you'll be hard-pressed to find a better emulation of both clean and overdriven tones of a real Fender Deluxe Reverb amp. The pedal’s response and dynamics mimic a real amp, including the subtle nuances of attack and sag. For those who love classic Fender tones, this pedal is a dream come true (no pun intended).

The spring reverb and tremolo effects are particularly noteworthy, delivering a lush, authentic sound that feels just like the real thing.

We tested the pedal in various setups, and it consistently impressed us. It handles other pedals exceptionally well. The stereo in and out are great for those running a wet/dry or true stereo rig, adding depth and dimension to your sound.

There are a few downsides worth mentioning. The lack of a headphone output is a notable omission. While you can plug it into a headphone amp, it requires additional gear, which can be inconvenient. This was a let down for us, especially considering other amp sim pedals tend to have a headphone jack.

The UAFX app is essential for changing certain settings, downloading custom artist tones, and recalling and archiving your presets. However, its occasional instability can be frustrating.

Bottom Line: The Universal Audio Dream '65 Reverb Amplifier is an outstanding emulation of a Fender Deluxe Reverb amp. Its build quality is excellent, and it offers a level of authenticity that can be both a blessing and a limitation, depending on your needs. If you're someone who loves the sound of a Fender amp and wants to avoid lugging around the real thing, this pedal is a fantastic solution. However, you might find this pedal limiting for the exact same reason. Whether the Dream '65 offers excellent value depends on how much you personally value having a Fender Deluxe Reverb in a box. For us, yes it is a tad more limiting than other amp sim pedals, but it sounds oh so good! It stands out as one of the most accurate and satisfying amp sim pedals we've tested, and we highly recommend it to fellow tone enthusiasts.

It's worth noting that if you like UA's single amp emulation, they also have these models available:

• UA Ruby '63 Top Boost (Vox)
• UA Lion '68 Super Lead (Marshall)
• UA Woodrow '55 (Fender Tweed)

The Boss IR-2 looks to stand out in the world amp sim and IR cab pedals by offering legendary Boss reliability and road-worthiness, while at the same time keeping up with the outstanding sound quality of competitors from the likes of Strymon, Walrus, Universal Audio, and more. Its relatively low price point begs the question, is the IR-2 too good to be true?

In one word - no! This is actually a fantastic amp sim pedal and frankly blew our expectations out of the water.

Chances are you’re familiar with Boss pedals - the IR-2 has a spartan design with a nearly indestructible chassis. Bonus points for being compact, unlike its more complex sibling the Boss IR-200.

The control layout is straightforward. The dual-concentric knobs allow us to tweak AMBIANCE/LEVEL/GAIN with one knob, and a 3-band EQ BASS/MIDDLE/TREBLE with the other. These types of knobs certainly save a lot of space, though they can be a bit fiddly to use on stage or if lighting conditions aren’t great. The fourth knob on the right is the main feature, letting you select from 11 (yes, 11!) different amp types.

One thing that varies widely between these amp sim pedals is the I/O options, and Boss did not skimp here. It runs in stereo (i.e. stereo ins and outs), it has a headphone jack for silent practice, USB-C so you can load your own custom IRs, and a mono/stereo FX loop. This level of versatility is impressive, especially considering its compact footprint.

In terms of sound quality, the Boss IR-2 delivers. Most of the 11 amp models are dynamic and responsive, making it a joy to play through. You get iconic models like the Fender Twin, Vox AC30, and Marshall Plexi, to Boss's proprietary creations, each paired with Celestion IRs. We found the built-in reverbs (Room, Hall, and Plate) to be lush and natural, enhancing the overall playing experience. The ability to load custom IRs via the dedicated app further extends its sonic palette, allowing us to tailor our tone to perfection.

The USB interface capability is a significant plus, allowing easy connection to a DAW for recording, and the inclusion of a headphone socket and send/return loop adds to its versatility.

Comparatively, the Boss IR-2 holds its own against higher-priced competitors. While the Strymon Iridium boasts exceptional sound and user-friendliness, its steep price tag can be a deterrent. The Nux Amp Academy, although cost-effective like the Boss, lacks the intuitive interface that makes the IR-2 so appealing. The DSM Humboldt Simplifier Mk2 offers great I/O options and a compact form factor but falls short with its inability to load custom IRs. The Walrus ACS1 and UA Dream 65 are formidable contenders, yet the IR-2's balance of features and price makes it a standout.

Bottom Line: So, did Boss make the perfect amp/cab sim pedal?? Of course not, there’s no such thing. But we’d be lying if we said this didn’t come close. Opinions online vary widely on this, but to our ears, the Strymon Iridium has a more “polished” sort of sound, while the DSM Simplifier Mk2 has a more raw analog tube amp feel. Despite this, Boss knocked one out of the park with this offering, especially for its price tag. The IR-2 is a fantastic addition to any pedalboard, particularly for musicians who value portability and versatility whether for practice, recording, or live performance.

When it comes to compact amp simulators, DSM & Humboldt Electronics have been consistently pushing the envelope, and the Simplifier mk2 is another testament to their innovative prowess. We were eager to dive into it, especially given how game-changing its predecessor was.

The Simplifier mk2's is absurdly small given how many features it has. It’s lightweight, yet feels robust and well-constructed. The layout might take some getting used to. We found the input/output connections a bit too close together, making it tricky to use adjacent connections with certain patch cables. A more linear arrangement might have alleviated this minor inconvenience, though admittedly, fitting all the jacks into such a small pedal is a challenging feat.

Moving on to the controls and features, the Simplifier mk2 is packed with options. It emulates three amps: AC BRIT (Vox), USA (Fender), and MS BRIT (Marshall) - par for the course. It also has a stereo cab sim section, so you can choose between Black (Eminence blackface), Blue (Blue Alnico), and Green (G12 Greenback) speaker styles.

We felt like the three-band EQ could have offered a bit more range, but it still allows for decent tone shaping. Unlike other amp sim pedals we tested, the Simplifier mk2 lets you dial in both the POWER AMP and PREAMP sections independently, with an LED that lights up when the power amp is clipping - super cool. It also has a Reverb knob for some basic plate reverb.

The I/O on this thing is incredibly versatile, especially considering the small footprint of the pedal. It has 1/4” stereo outputs as well as DI XLR outputs, an FX loop (a nice addition not found in every pedal of this type), AUX in, and a headphone jack with its own volume knob.

As far as sound quality goes, the Simplifier mk2 does not disappoint. Playing through it feels remarkably like using a real amp, capturing the nuances of tube amplification with impressive fidelity. We tested all three amp types and were blown away by the quality of tones. The Fender Bassman replication, in particular, stood out with its nuanced and dynamic response. When we tested it, we placed it as the final piece in our signal chain, and it handled other pedals wonderfully.

Bottom Line: We asked ourselves the tough question of where it stacks up between all the amp sim pedals we tested. It has a similar comprehensive I/O as the Nux Amp Academy, nearly the same plug-and-play immediacy as the Strymon Iridium, a Fender amp simulation that holds up to the UA Dream, all while being as compact as the Walrus ACS1. What it doesn’t have is the ability to load custom IRs. It’s also within striking distance of the Iridium in terms of price, so it’s not for the budget-minded guitarist.

If you’re a tone geek who loves apps, software editors and loading custom IRs, you might find the Simplifier mk2, well, too simple. Nonetheless, DSM Humboldt has once again proven their innovative capabilities with this incredibly impressive unit.