Guitar World Verdict
It's not going to suit all Boss effects users, nor is it intended to, but approach the PX-1 with your specific needs in mind and you may discover a compact pedal that could be your tailor-made 'Best of Boss'.
Pros
- +
The most compact way to combine multiple effects from Boss history in a floor unit.
- +
The modeling is consistently excellent.
- +
Could be especially useful as a space-saving solution for modulation.
- +
A decent amount of classic effects included.
- +
The usual excellent rugged Boss build.
- +
MIDI compatible and expression pedal input offer enhanced control.
Cons
- -
Potential extra costs in addition to the hardware price.
- -
You can only store 16 effects on the pedal at once.
- -
Where to place it in your signal chain could become a frequent question with no final answer.
- -
A choice of colors would have been nice for this multi-purpose pedal.
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What is it?
We may not acknowledge it enough but guitar players have got it really good now. Nostalgia is great, but it's not always applicable, so while you can't really find many golden era vintage electric guitar bargains these days, what we do have is better choice and access to gear and evolving technology than ever.
So when Boss announced it was launching a pedal with the ability to upload individual pedal models from its vast catalog of classic effects from a 52-year history, it made some sense as a concept, but its announcement to charge for additional 'Model Passes' in the future ruffled some feathers / caused YouTubers to foam at the mouth with pure outrage.
Charging for extras?! Would we get to keep the pedals we buy in perpetuity? Yes, Boss told Guitar World – "Any optional Model Passes that you purchase are associated with your Roland Account and remain available permanently – there is no subscription".
Was this a line in the sand from the Japanese giant, suggesting a new direction it was going in with its effects? No, as long as it continues to produce 'traditional' pedals – and it very much is.
Boss is adding a new choice here – filling a gap for a multi-purpose compact pedal in its lineup. The PX-1 comes with eight effects preloaded (and another eight available once you register with the accompanying Effects Loader app), from the familiar (DS-1) to the discontinued and collectible/valuable (SG-1).
Yes, in a context where firmware updates bringing additional features are freely available the idea of charging $9.99 for additional pedal models can seem jolting, but this isn't the same as firmware support. Boss is very clear about the proposition here – "It is essentially a living history of BOSS pedals – a greatest hits collection of the most legendary and sought-after BOSS pedals, all with authentic tone and response".
Knowing that, players can go in with their eyes open – they don't have to like it, but nobody is being fooled.
The company making its effects available digitally isn't exactly a new concept – but the examples we find featured in Katana guitar amp range and its multi-effects pedals are not such deep dives at those in the PX-1.
However, the divide between what you get for the initial asking price for the hardware here, and what the PX-1 could become if you pay more in the future is new for Boss in the pedal market. Even though this pedal follows its entry into the plugin market for DAWs.
I think the basic concept of the PX-1 is a cool idea. Growing up with Boss pedals in the '90s felt like a rite of passage for me. Including trying to make a Metal Zone sound like Metallica's Justice album. The idea of having your own 'Best of Boss' in a single, familiar unit is attractive. Especially if Boss can deliver favorite icons and curated obscurities from its catalog of 140 unique pedals. A DM-2 for $9.99? Yes please.
But when I'm looking at the PX-1, I have to look at the stock proposition for the initial outlay; while also taking into account the possible investment required to realize further potential.
Specs
- Launch price: $249.99 | £229 | €269
- Type: Multi-modeling effects pedal
- Controls: 3 rotary push button controls with functions dependent on effects model selected.
- Features: Graphic LCD 128 x 48 dots, up to 16 onboard effects (8 first series Boss pedal models included with PX-1 as stock with a further 8 second series models available to download after registration), stereo input and output, tap tempo, MIDI clock sync for time-based effects, Bluetooth and USB-C connectivity for Boss Effects Loader app, support for external footswitches and expression pedal.
- Connectivity: Input and Output x 2 (mono and stereo), Controller 1, 2 / Expression pedal input, MIDI in, USB-C
- Bypass: Buffered
- Power: 9V DC, USB-C, 260 mA (with AC adaptor), 420 mA (with USB)
- Additional options: Footswitch: FS-5U, dual footswitch: FS-6, FS-7
Expression pedal: FV-500H, FV-500L, EV-30, Roland EV-5
Additional models available to buy via Effect Uploader store in January 2026 - Dimensions: W: 73mm | H: 56mm | D: 125mm
- Weight: 400g
- Contact: Boss
Build quality
Build quality rating: ★★★★½
Ask 10 random people to draw a guitar and it's likely something resembling a Strat will be the most common result. For effects pedals, I'd argue it would look like a Boss pedal. It's almost too easy to take for granted just what an industry standard the chassis has become since the trio of OD-1 Overdrive, PH-1 Phaser and SP-1 Spectrum emerged in 1977. All three of those pedals are part of the eight models represented here out of the box.
You can find working originals of those pedals on the used market today - and that's because Boss's compact pedal internal build quality is matched by such a robust protective combo of alloy, rubber and plastic. This is where the "built like a tank" line in guitar reviews sprouted from. It was true in the '70s and it's true now.
The white and royal blue colour scheme is clean but also a little too clinical for me – and it does remind me of the Tesco supermarket color scheme. Perhaps some color options would have been appropriate for a pedal that isn't any one thing, unlike its compact Boss brethren.
The small 128 x 48 dot landscape monotone LCD screen is low-key enough for the pedal not to announce itself as a dramatic departure. It's comparable to recent multi-pedal compact designs from Line 6 and TC Electronic in that regard; just enough screen to perform.
With only three rotary controls above it, I wonder just how this layout is going to work with so many potential parameters, but as each doubles as a push button, I'm starting to guess.
Usability
Usability rating: ★★★½
I don't think customers should have to jump through a hoop like this to access the base features of any pedal
The downloading of the Boss Effect Loader app (and a firmware update) is first required before you can access, then download half of the 16 effects (tip - search for it on your phone under Effects Loader, not Boss). It's all a bit of a faff - first I had to work out how to turn the pedal's Bluetooth on, then I had to download and install a firmware update by connecting the pedal to my phone with a USB-C cable, before I could then upload the newly accessible eight effects to the PX-1.
I don't think customers should have to jump through a hoop like this to access the base features of any pedal – why not make all 16 effects available out of the box? Perhaps it's not a customer-friendly decision, because from Boss's perspective, it would mean you're signed up early on to the app to manage effects via Bluetooth… and sell / notify you about additional models as they become available from January 2026. That's conjecture on my part, of course.
Use the manual or go it alone, there's a fairly quick learning curve to the menu system here – and accessing additional pedal settings the three button / rotart controls don't cover.
When selecting specific models with the ominous 'Execute' command, a brief monotone intro screen appears for the effect and then you're in, with three controls corresponding to a trio of rotary parameters on the screen (Tone, Level and Distortion for the DS-1, for example). Pressing the button for the additional page then accesses anything else that the pedal offers; In the case of the DS-1 there's nothing, but for the DD-2 it's the delay length selection and Carry Over (trails) mode.
It's as rudimentary as it needs to be and soon becomes second nature. If you're using the PX-1 for 3-4 different effect sounds regularly, it remembers the last setting you had for each effect but it doesn't offer a preset screen. The nature of the pedal is that each effect model has to be loaded when accessed – so no multi-effect stacking within it – but this setup does allow you to move between your go-to settings live in a few seconds.
You can also switch instantly via the app, though the idea of using a phone/Bluetooth connection during a live set makes me shudder.
Less desirable is the limit of 16 effects slots when it comes to storage on the PX-1, which seems seriously stingy for a piece of pedal hardware in 2025. I'd have expected more slots on a "greatest hits' device. Instead, you'll need to keep returning to the app and connecting via Bluetooth to remove and upload effect models if your collection grows – and the eight models available out of the box cannot be swapped out. I think Boss should have either increased the internal storage or removed the cap so users weren't as reliant on the app to access pedals they may eventually pay for.
Where you might place the PX-1 could be a tricky decision too. For modulation and some drives it may be an easier decision, but introducing the time-based effects here like the DD-2 and it's less clear cut without a switching system. You will have to physically move the pedal around the signal chain.
The PX-1 can offer enhanced real-time control the original pedals don't – or couldn't because of when they were launched
"The PX-1 is not intended to be a broad multi-FX device," Boss told us. "Instead, it bridges the gap between collectors, enthusiasts, and players who want access to classic BOSS sounds in their most faithful form". But the PX-1 is undoubtedly a device with multiple effects, and I think a lot of players would want to utilize it in their rig that way.
With that in mind, the addition of an external pedal input is welcome here. One or two footswitches can access the Swap function to switch between two effects on the PX-1. While most parameters can be assigned to an expression pedal. In this sense, the PX-1 can offer enhanced real-time control the original pedals don't – or couldn't because of when they were launched years ago.
Sounds
Sounds rating: ★★★★☆
- OD-1 Over Drive
- SP-1 Spectrum
- PH-1 Phaser
- SG-1 Slow Gear
- CS-1 Compression Sustainer
- TW-1 T Wah
- SD-1 Super OverDrive
- DS-1 Distortion
- CE-2 Chorus
- BF-2 Flanger
- PN-2 Tremolo/Pan
- OC-2 Octave
- PS-2 Digital Pitch Shifter/Delay
- VB-2 Vibrato
- DD-2 Digital Delay
- DF-2 Super Feedbacker & Distortion
With additional paid-for effects models being released by Boss in early 2026, the whole story of the PX-1 is yet to be told. What we have right now is an excellent showcase of Boss's effects modeling, which also serves as an introduction to the world of Boss for newcomers. It also bursts some bubbles.
While we doubt many people are paying for the PX-1 just to access a model of it, the 1979 Slow Gear SG-1 filter pedal can sell for well over $400 used at the time of writing. But its effect is so subtle in cutting your signal's attack, and arguably not exactly that desirable in the way it does it, it's cured me of my intrigue.
Much more desirable is the CE-2 – a stone-cold classic mellow chorus that was reissued in Waza Craft form in combination with the CE-1. Alongside the likes of the DD-2 delay and DS-1, it's a reminder that these aren't just another set of generic effects models; they're accurate reproductions of iconic Boss pedals. Proper cornerstone sounds from the company that developed them. And if there's something you'd like to try here, or from what will be available in the future, it's undoubtedly cheaper than buying multiple analog and digital Boss originals.
Following that logic I could absolutely envision focusing on a choice collection of the stock modulation effects (as well as the CE-2 I really like the versatility of the BF-2 Flanger here, based on the pedal that was discontinued in 2001) complemented by some choice future model purchases, like a Dimension C. I'd be saving the space of three specific pedals there, as well as money. Judging by the 16 effects I have here, the sounds certainly deliver. When I A/B'd the DS-1 with the 'real' thing I couldn't tell them apart.
Verdict
Players know what they are getting and what they are not here; and it's the not part that shouldn't be overlooked
The keyword in all of this is Boss – others can offer elements of the effects modeling here but the PX-1 is the compact pedal destination for the best multiple models of specific Boss pedals right now. That is the foundation for the desirability here for me, and the sounds deliver, the build is good and the general UI is simple.
Players know what they are getting and what they are not here; and it's the not part that shouldn't be overlooked.
The value in the $9.99 price for individual effects models in 2026 will depend on exactly what specific effects you want in your PX-1. Despite Boss's claim this isn't a multi-effects pedal, I think the most common potential user case of the PX-1 is as part of a signal chain to deliver specific effects as needed. With that in mind, the meager onboard storage space seems an unnecessary limitation for a "greatest hits" Boss effects experience, increasing reliance on a smartphone app. Despite this, what the PX-1 does offer, it delivers well.
My perspective returns to the theme of entitlement I mentioned at the start. Greater accessibility and choice don't mean every new release can or should please everyone. Boss has placed itself in an unenviable position with the PX-1 in some ways, as it enters a market now used to multi-effects and modeling wonderboxes.
Perhaps if Boss gives away a lot of effects models for the base £229 asking price, it risks devaluing and perhaps cannibalizing its physical pedal sales, too few and it faces the wrath of the comment sections. But this is a product launch from a business, not a public effects service. Other choices are available, and it's not a wholesale change in Boss direction; if the pricing model of the PX-1 doesn't appeal to you as a fan of this specific company's effects, Boss has plenty more options for you.
Guitar World verdict: It's not going to suit all Boss effects users, nor is it intended to, but approach the PX-1 with your specific needs in mind and you may discover a compact pedal that could be your tailor-made 'Best of Boss'.
Test | Results | Score |
|---|---|---|
Build quality | Usual Boss quality but some alternate colour choices would have been nice to see. | ★★★★½ |
Usability | Accessing effects is straightforward enough, but you're limited to 16 onboard which seems like a strange design choice. | ★★★½ |
Sounds | Excellent models of 16 Boss classics, discontinued gems and obscurities but you'll have to pay if you want any more . | ★★★★☆ |
Overall | The effects pedal equivalent of a jukebox packed with classics and overlooked gems – but how well it fits your needs may depend on how much extra you're willing to spend. | ★★★★☆ |
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