Disclosure: Fency Music, linked on this page, is our sister store. Liverpool Music does not currently earn affiliate commission from any retailer mentioned here.
A budget multi effects unit is one of the best value purchases in guitar. For around £100 you get amp sounds, a full set of effects, a tuner, a headphone output and often a looper and drum machine, in a box that fits in a backpack. Three names come up again and again: the Boss GT-1, which has been the default choice for nearly a decade, the Zoom G1X Four, which has been the cheapest serious option for years, and the newer Valeton GP-50, which has arrived with features neither of the older units can match.
I am a songwriter, and I build FencyGuitar, a guitar learning app, so I care about gear that removes friction between picking up the guitar and making music. That is the lens for this comparison. All prices are UK prices checked on 25 October 2026, and I will be honest about where each unit disappoints.
The Short Answer
The Valeton GP-50 is the best value and the most modern of the three. The Boss GT-1 is the most proven and the easiest to stomp on at a gig. The Zoom G1X Four is the simplest and cheapest way to start, with the longest battery life.
| Unit | UK price | Best for |
|---|---|---|
| Valeton GP-50 | About £99 | Modern amp sounds, NAM captures, home recording and practice |
| Boss GT-1 | About £153 to £199 | Gigging players who want a sturdy floor unit with a built in pedal |
| Zoom G1X Four | About £109 | Absolute beginners, buskers and anyone who wants simple and cheap |
Below, I break down sound, ease of use, practice tools, power and recording, then look at each unit in detail.
Three Brands, Three Philosophies
Valeton
Valeton is a Chinese effects maker that built its reputation on small, affordable pedals before moving into multi effects with the GP series. Its approach is to pack in the newest technology at a low price. The GP-50 is the clearest example: it supports Neural Amp Modeler captures through Valeton's SnapTone system, loads third party cabinet impulse responses, and runs from a built in rechargeable battery.
Boss
Boss has been making effects in Japan since the 1970s, and its compact pedals are the most common sight on pedalboards worldwide. The GT-1 launched in 2016 as a cut down version of Boss's flagship GT series. It borrows effects and amp models from the bigger units, and it is built like a Boss pedal: metal, simple and tough. There are signs that production is winding down, so availability may become patchy.
Zoom
Zoom is a Japanese company founded in the 1980s, known for affordable multi effects and portable recorders. The G1 Four and G1X Four are its entry level guitar processors. The G1X Four adds an expression pedal to the G1 Four. The design philosophy is simplicity: a small screen, a few knobs and a lot of sounds for very little money.
In short: Valeton is the tech forward newcomer, Boss is the safe veteran, and Zoom is the budget minimalist.
Sound Quality and Amp Modelling
The heart of any multi effects unit is how convincing its amp sounds are, because that is what you hear most of the time.
The Valeton GP-50 has the most modern approach. As well as its own amp models, it can load Neural Amp Modeler files, often called NAM captures. A NAM capture is a machine learning model of a real amp, built by recording that amp and training software to imitate it. Players share thousands of these captures online, so you can load a model of a specific amp rather than a generic approximation. The GP-50 converts them through Valeton's SnapTone system and holds up to 80, alongside up to 20 cabinet impulse responses.
The Boss GT-1 uses amp models derived from Boss's larger GT units. They are not the newest models on the market, but they are well tuned and consistent, and many players find the GT-1's drive and modulation sounds very usable out of the box. Boss effects in particular, such as its delays, choruses and reverbs, are a strength.
The Zoom G1X Four has 13 amp models and more than 70 effects. The amp sounds are the most basic of the three, especially at high gain, where they can sound a little fizzy. For practice and learning they are perfectly fine, and the effects are better than the price suggests.
On pure sound quality, I would rank them Valeton first, Boss a close second for effects, and Zoom third. Through headphones the gap is smaller than you might expect.
Ease of Use and Editing
A unit you cannot work out is a unit you will not use.
The Zoom G1X Four is the easiest to understand. You scroll through patches, turn a few knobs to adjust the current effect, and that is about it. The downside is that deeper editing on a small screen gets fiddly.
The Boss GT-1 has a slightly steeper learning curve but a logical layout, plus Boss Tone Studio for editing on a computer. Its two footswitches and built in expression pedal make it easy to switch sounds and control wah or volume during a song.
The Valeton GP-50 has a larger 1.77 inch colour screen, two footswitches with coloured light rings, and a Bluetooth app for editing from your phone. The app makes building sounds much quicker than menu diving. It is the most powerful of the three, and that power comes with more settings to learn.
If you just want to plug in and play, the Zoom wins. If you like to tweak, the Valeton's app is the most pleasant way to do it.
Practice Tools: Looper, Drums and Headphones
All three include a tuner, a headphone output and some form of rhythm and looping, which is what makes them such good practice tools.
Valeton GP-50: a looper with on the fly loop capture, a drum machine with tempo sync, and Bluetooth for app control and backing tracks.
Boss GT-1: a looper and a headphone output with cabinet simulation. It does not have the same built in drum patterns as the other two.
Zoom G1X Four: a 30 second looper that works alongside 68 built in rhythm patterns.
From my work on FencyGuitar, the single most useful practice habit is playing with a rhythm rather than in silence. Any of these three will do that. The GP-50 makes it the most pleasant, and the Zoom makes it the cheapest.
Power, Size and Build
This is where the three differ more than you might expect.
The Valeton GP-50 weighs about 430g, has a metal housing and contains a 1,450mAh rechargeable battery rated at around four hours. It charges over USB, so you can run it from a power bank. It is the most portable, but four hours is the shortest battery life here.
The Boss GT-1 runs on four AA batteries for up to about seven hours, or from a mains adaptor. It is the largest of the three because of its built in expression pedal, and it feels the most solid underfoot.
The Zoom G1X Four also takes four AA batteries, with Zoom quoting around 18 hours from alkalines, and it can run from USB power too. It is the lightest feeling build, with more plastic than the others.
For busking or travel, battery life matters. For our full list of portable gear, see our best travel guitars roundup, which includes amp and effects suggestions.
Recording with USB
All three can work as a simple USB audio interface, which means you can plug straight into a computer and record your guitar without an amp or microphone. For a songwriter, that is a big deal. You can capture an idea in a few minutes with nothing more than a laptop and headphones.
The Valeton GP-50 offers two in and two out USB audio over USB C, which is useful for re amping and for monitoring your computer through the same headphones. The Boss GT-1 and Zoom G1X Four both record over USB as well, at 24 bit quality.
Using One with an Amp
Most players start with headphones, but sooner or later you will want to hear the unit out loud. How you connect it changes how it sounds.
Into the front of a practice amp. This is the simplest option. Turn off the amp and cabinet simulation on the multi effects, or choose patches that only use effects, and treat it like a pedalboard in front of the amp. If you leave the amp models on, you are running one amp model into another amp, which usually sounds muddy and over processed.
Into the effects return of an amp. If your amp has an effects loop, plugging into the return bypasses the amp's own preamp. You can then use the multi effects unit's amp models with only the amp's power section and speaker colouring the sound. This often sounds more natural than going into the front.
Into a powered speaker or PA. With amp and cabinet simulation switched on, the unit can go straight into a powered speaker, a mixer or a PA. This is how many players gig with these units today, because it keeps the setup light.
Into a modelling amp. Amps such as the Katana have a dedicated input that bypasses their own preamp. If you own one, that is the cleanest way to combine the two.
For each method, start with the master volume low and raise it gradually. Patches built for headphones can be much louder or brighter through a speaker, and a quick EQ adjustment usually fixes it.
The Contenders in Detail
Valeton GP-50
At around £99 at Andertons and other UK shops, the Valeton GP-50 is hard to argue with. You get more than 100 effects, NAM and IR loading, up to nine modules in a chain according to Andertons, a looper, drums, a tuner, Bluetooth, MIDI, an expression and footswitch input, USB audio and a built in battery. It has 100 patch slots.
It is the unit I would recommend to most new players today, because it is cheap, modern and genuinely useful at home and on the go. If you want something even smaller, the Valeton GP-5, at about £59, drops the battery, looper and second footswitch.
Who should skip this: players who need long battery life away from a charger, and anyone who wants a built in expression pedal.
Models Worth Checking Out
Beginners: Valeton GP-5
Most players: Valeton GP-50
Boss GT-1
The Boss GT-1 has been the default budget floor unit for years. It was listed at around £153 on Amazon UK and £199 at Gear4music when I checked, though guitarguitar no longer listed it. It has two footswitches, a built in expression pedal, 99 user patches, a looper, USB audio and the option to run on batteries.
Its biggest selling point is the built in pedal. For wah, volume swells and pitch effects you will not need any extra gear, which makes it the best choice for gigging players who want one box on the floor. The downside is that it is now an older design without NAM, IR loading or Bluetooth, and its price is higher than the Valeton's.
Who should skip this: home players on a budget, and anyone who wants the latest amp modelling.
Models Worth Checking Out
Gigging players: Boss GT-1
A bigger step up: Line 6 POD Go, £399
Zoom G1X Four
The Zoom G1X Four was £109 at guitarguitar, though out of stock when I checked, and the Zoom G1 Four, without the expression pedal, was £89 and in stock. You get more than 70 effects, 13 amp models, up to five effects at once, 50 patch memories, a 30 second looper and 68 rhythm patterns.
It is the simplest of the three and the longest lasting on batteries, which makes it a good busking tool and a good first unit for someone who does not yet know what they want.
Who should skip this: high gain players and anyone who wants to grow into the unit. You may outgrow it within a year.
Models Worth Checking Out
Tightest budget: Zoom G1 Four
With expression pedal: Zoom G1X Four
An alternative: NUX MG-300 MKII, £129
Quick Comparison Table
| Valeton GP-50 | Boss GT-1 | Zoom G1X Four | |
|---|---|---|---|
| UK price | About £99 | About £153 to £199 | About £109 |
| Amp sounds | Models plus NAM captures | Models from Boss GT series | 13 models |
| Effects | 100+ | Large Boss library | 70+ |
| Cabinet IRs | Up to 20 | No | No |
| Expression pedal | Input only | Built in | Built in |
| Looper and drums | Both | Looper | Both |
| Power | Built in battery, about 4 hours | 4 AA, about 7 hours | 4 AA, about 18 hours |
| Bluetooth app | Yes | No | No |
| USB audio | Yes, 2 in 2 out | Yes | Yes |
| Best for | Most players, home and travel | Gigging with one box | First unit, busking |
What I Don't Like About Each One
Valeton GP-50. The battery is good for about four hours, which is fine for practice but tight for a long busking session. The small size means footswitches sit close together, so stomping accurately on a dark stage takes care. Software from smaller brands can also change quickly, so check that the app supports your phone.
Boss GT-1. It is the oldest design and it shows. There is no NAM support, no IR loading and no Bluetooth, and the price is higher than the Valeton's. With signs that production is ending, buying new may get harder.
Zoom G1X Four. High gain sounds are the weakest of the three. The small screen makes deep editing slow. And the plastic build feels less reassuring than the others underfoot.
All three. None of them sounds like a real valve amp in a room. Through a small practice amp or headphones they are excellent; through a big PA they need careful setting up.
Who Should Skip All Three
Players who want an amp, not a pedal. If you want something that makes sound on its own, see our Boss Katana vs Positive Grid Spark comparison.
Players who love individual pedals. If you enjoy choosing one drive and one delay, single pedals may suit you better. Our Blues Driver vs Tube Screamer vs Klon comparison is a good starting point.
Professional players running big rigs. At that level, a larger floor unit with more inputs, outputs and switches is worth the money.
Buying Used in the UK
All three are widely available used. When I checked, eBay UK had used Boss GT-1 units from around £110, and used Zoom units are often cheaper still. A few checks are worth making:
Footswitches. Press each one many times. Worn switches are the most common fault.
Expression pedal. On the GT-1 and G1X Four, sweep the pedal and listen for jumps or crackles.
Battery health. On the GP-50, ask how long the battery lasts on a full charge.
Firmware. Connect to the app or editor and update it. Newer firmware often adds features.
So, Which One Should You Buy?
Most players, home and travel. The Valeton GP-50. It is the cheapest of the three at around £99 and does the most.
Gigging with one box. The Boss GT-1, for its built in pedal and sturdy build, while it is still available.
First unit or long busking days. The Zoom G1X Four, for its simplicity and battery life.
If the GP-50 appeals but you want more footswitches and a bigger screen, Fency Music, our sister store, also carries Valeton's larger floor units, including the Valeton GP-150.
Pair any of these with a decent guitar and you have a complete setup. Our Squier vs Epiphone comparison covers the most popular first guitars.
Why Liverpool Music
Liverpool Music is run by Zhong Gu, a songwriter who also builds FencyGuitar, a guitar learning app. We think a lot about the gap between owning gear and actually practising with it, and that is the lens we use here.
We checked prices against UK retailers on 25 October 2026, using guitarguitar, Andertons, Gear4music and Amazon UK listings. We cross checked specs against manufacturer and retailer listings, and when a point comes from owner reports rather than our own hands, we say so. Fency Music is our sister store, which is why we say so at the top of the page. We do not currently earn affiliate commission from any retailer we mention. If a price or spec has changed, tell us and we will correct it.
FAQ
Is the Valeton GP-50 good for beginners?
Yes, the Valeton GP-50 is an excellent beginner unit. It is cheap, it includes a looper, drums, a tuner and a headphone output, and its phone app makes building sounds easier than scrolling through menus. Beginners who find it overwhelming can simply use the factory presets and ignore the deeper features.
Is the Boss GT-1 discontinued?
The Boss GT-1 appears to be nearing the end of production, but we found no official announcement. Some UK retailers no longer list it, while others still had stock in October 2026. If you want one new, buy sooner rather than later, or look at the used market.
Can I use a multi effects pedal without an amp?
Yes, you can use all three without an amp. Plug headphones into the headphone output for silent practice, or connect to a computer over USB to record. For playing out loud, you can run them into a powered speaker, a PA or the effects return of an amp.
What is NAM and do I need it?
NAM stands for Neural Amp Modeler, a way of capturing a real amp's sound with machine learning. You do not need it to sound good, but it gives you access to thousands of free community captures of specific amps. Of these three units, only the Valeton GP-50 supports it.
Which is best for busking?
The Zoom G1X Four is the best of these three for busking because it runs for around 18 hours on AA batteries. The Boss GT-1 is tougher and lasts around seven hours. The Valeton GP-50 sounds best but its internal battery lasts about four hours, so bring a power bank.
The Bottom End
The budget multi effects market has changed. For years the Boss GT-1 was the obvious answer and the Zoom was the cheap alternative. Today the Valeton GP-50 does more than both for less money, and it is the one I would point most players towards. The GT-1 still earns its place for gigging players who want a built in pedal and a box that can survive a beer spill, and the Zoom remains the simplest way to start. Whichever you choose, the best effect you can add is regular practice with a rhythm behind you.
