Looking for the ultimate Guitar Fx Processor in 2024? You’ve landed in the right spot. As a guitarist deeply invested in tone, I regularly incorporate multi-FX into my setup for both live gigs and studio recordings. Over the past year, I’ve rigorously tested and reviewed numerous multi-effects pedals, giving me a comprehensive understanding of what’s currently available. Whether you’re aiming to expand your existing pedalboard or completely overhaul your rig, my curated selection of top-tier guitar FX processors will guide you to the perfect choice.
The landscape of guitar effects has exploded with options, and the capabilities of multi-effects units have dramatically evolved in recent years. Early multi-effects, like my first Zoom 606, offered basic pedalboard simulations. Today’s advanced guitar FX processors can handle amp and cabinet modeling alongside incredibly realistic emulations of legendary stompboxes. This means a single unit can now deliver a vast sonic palette, from subtle modulation to full rig replacement.
Personally, I still favor using a tube amp as the heart of my tone. I utilize my guitar FX processor to cover modulation and time-based effects, streamlining my pedalboard for portability and convenience. However, if you want a guitar FX processor to be the central hub of your entire setup, that’s entirely feasible too. For live performances using amp modeling, I highly recommend pairing your processor with an FRFR (Full Range, Flat Response) speaker for accurate monitoring and sound reproduction.
Below, you’ll find my carefully selected list of the best guitar FX processors available, categorized by their ideal use case to simplify your decision. All but one of these units have been personally reviewed (I’m actively working on the final one), so you can delve deeper into the details of any processor that catches your interest. Leveraging my two decades of experience with guitar FX processors, I’ve also included a comprehensive FAQs section to address common questions and provide expert insights.
My Top Picks
Line 6 Helix guitar fx processor for overall best
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Line 6 Helix
With an extensive library of amps, cabs, effects, and presets, combined with custom IR loading and exceptional connectivity, the Line 6 Helix stands out as the ultimate all-around guitar FX processor.
Neural DSP Quad Cortex guitar fx processor for best amp models
Best Amp Models: Neural DSP Quad Cortex
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Neural DSP Quad Cortex
Powered by immense processing capabilities, the Neural DSP Quad Cortex excels in delivering the most authentic and nuanced emulations of world-renowned amplifiers.
Kemper Profiler Stage guitar fx processor for best profiling
Best Profiler: Kemper Profiler Stage
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Kemper Profiler Stage
Favored by professional touring guitarists, the Kemper Profiler Stage allows you to capture and replicate the unique tones of your own amplifiers with unparalleled accuracy for an ampless stage setup.
Best Overall Guitar FX Processor
The Line 6 Helix is our top pick for the best overall guitar FX processor due to its versatility and comprehensive features. (Image credit: Future)
1. Line 6 Helix
The ultimate guitar FX processor for professional guitarists.
Read our expert review
Specifications
Type: Amp Modeler/Multi-effects Pedal
Effects: 70
Amp Models: 41 guitar, 7 bass
Connections: Standard guitar input, standard aux input, XLR mic input, standard main outputs (L/mono, R), XLR main outputs (L/mono, R), standard stereo phones output, 4x standard send, 4x standard return, s/pdif digital in, s/pdif digital out, AES/EBU and L6 Link out, Variax, MIDI in, MIDI out/thru, USB, 2x expression pedal, Ext amp, CV
Power Requirements: Mains power (IEC lead)
Reasons to Buy
- Extensive connectivity options
- Exceptional sound quality from amp and effects models
- Innovative visual display features
Reasons to Avoid
- Potentially overwhelming connectivity for some users
At a Glance
✅ Ideal for: Guitarists seeking an all-encompassing guitar FX processor. With its vast amp selection and extensive range of effects, the Helix is our top recommendation for the best overall multi-effects unit.
❌ Not ideal for: Users who prefer simplicity and minimal options. The sheer depth of features and connectivity might be overwhelming for those prone to option paralysis.
The Line 6 Helix, powered by dual-DSP, merges amp and effects modeling into a robust floor pedal format. It comes pre-loaded with a staggering 1,024 presets, organized into eight setlists with 32 banks, each containing four presets. Each preset can manage up to four stereo signal paths, each comprised of eight blocks for amps and effects.
For sound creation, the Helix offers an overwhelming array of options. The lineup includes 41 meticulously modeled guitar amps, seven bass amps, 30 cabinets, 16 microphones, and 80 effects, with the added capability to load custom speaker impulse responses. Line 6 has implemented an intuitive editing system, complete with a joystick and touch-sensitive footswitches that provide direct access to parameter adjustments. You can even use your feet to select a parameter before tweaking it with the expression pedal!
The Helix truly shines in its sound quality, particularly when you move beyond the factory presets and sculpt tones to your personal taste. Its primary strength lies in its comprehensive input/output and signal routing capabilities, accommodating virtually any studio or stage application imaginable for guitarists. However, if you don’t require such extensive connectivity and wish to save some money, the Line 6 Helix LT, a more streamlined version, is also featured further down this guide.
EXPERT VERDICT: LINE 6 HELIX
EXPERT VERDICT: LINE 6 HELIX – Trevor Curwen
“Helix’s advancements deliver enhanced sound accuracy and playability, responding authentically to the nuances of your playing style. These are tones that confidently stand alongside those from Kemper or Fractal models.”
Read more: Line 6 Helix Review
Best Guitar FX Processor for Amp Models
Neural DSP Quad Cortex multi-effects pedal floating with a guitar cable in a visually striking product shot
The Neural DSP Quad Cortex sets a new standard for amp modeling quality in a guitar FX processor. (Image credit: Future)
2. Neural DSP Quad Cortex
A professional-grade amp modeler and multi-effects pedal.
Read our expert review
Specifications
Type: Amp Modeler
Effects: 50+
Amp Models: 50+
Connections: Dual combo inputs, Dual effects-loops, 2x 1/4” output jacks, 2x XLR output jacks, headphone output, MIDI in, out/thru, Dual expression inputs, USB audio interface with Cirrus Logic codecs
Power Requirements: 12 V DC power adapter included
Reasons to Buy
- Sleek and intuitive design
- Incredible sound fidelity
- Robust and durable enclosure
Reasons to Avoid
- Premium technology comes at a higher price point
At a Glance
✅ Ideal for: Professional guitarists seeking a top-tier guitar FX processor. The Quad Cortex excels in amp modeling, making it an excellent choice for players who demand extensive tonal options and flexibility.
❌ Not ideal for: Budget-conscious buyers. This level of advanced technology is a significant investment, so it might not be suitable for those with limited budgets.
Harnessing a powerful 2GHz Quad-Core SHARC DSP, the Neural DSP Quad Cortex is a formidable tool tailored for the professional guitarist. While it represents a significant investment, its popularity among professional guitarists, including Slash, is a testament to its capabilities as an amp modeler and profiler.
The processing prowess of the Quad Cortex directly translates to the exceptional quality of its effects and amp models. In blind tests, it’s incredibly difficult to distinguish between the Quad Cortex and real amplifiers, especially when combined with its ability to model your own gear. This unit significantly reduces the need for traditional amp setups.
Despite its powerful features, the Quad Cortex maintains a compact and rugged design. The innovative footswitch/rotary control hybrids are particularly commendable, allowing the unit to remain smaller than most competing amp modelers. Imagine having access to your entire collection of amps, cabinets, and effects pedals in a device no larger than a laptop – truly remarkable.
EXPERT VERDICT: NEURAL DSP QUAD CORTEX
EXPERT VERDICT: NEURAL DSP QUAD CORTEX – Alex Lynham
“The sound quality is outstanding. Its processing power truly enhances the signal path, rendering even the most complex rigs with superb fidelity. With ongoing updates and improvements promised, it stands as a worthwhile investment.”
Read more: Neural DSP Quad Cortex Review
Best Profiling Guitar FX Processor
Kemper Profiler Stage multi-effects pedal on a grey floor highlighting its pedalboard format
The Kemper Profiler Stage is unparalleled for capturing and recreating the sounds of your existing guitar gear. (Image credit: Future)
3. Kemper Profiler Stage
A robust multi-effects and amp modeler engineered for live performance.
Read our expert review
Specifications
Type: Amp Modeler/Multi-effects Pedal
Effects: N/A
Connections: Inputs – 1 x 1/4″ (instrument), 1 x 1/4″ (return/profiling), 3 x 1/4″ (return), Outputs – 2 x 1/4″ (main), 2 x 1/4″ (monitor), 2 x XLR (main), 2 x 1/4″ (send 1/2), 2x Coax (S/PDIF), USB – 1 x Type B, 1 x Type A
Power: Standard IEC AC cable
Reasons to Buy
- Endless array of effects and amp profiles
- Extensive preset options
- Versatile connectivity to integrate with any setup
Reasons to Avoid
- Screen visibility can be challenging
- Steeper learning curve for operation
At a Glance
✅ Ideal for: Professional users seeking a top-tier profiling guitar FX processor. The Kemper excels at modeling your own amps and effects, making it perfect for taking your familiar rig on tour without the bulk and expense of transporting heavy gear.
❌ Not ideal for: Users who are not technically inclined. Operating the Kemper effectively requires delving into its manual and software, which may not suit those who prefer straightforward, user-friendly devices.
The Kemper Profiler Stage transcends the typical multi-effects pedal; it’s a comprehensive rig replacement, offering access to virtually every amp and effect combination imaginable. Packaged in a convenient pedalboard format, this potent profiler could very well be the last major guitar gear purchase you ever need to make.
Pre-loaded with some of the most exquisite amp models and effects ever created, each profile is captured in professional recording studios, ensuring top-tier sound quality. It includes a vast array of distortions, delays, choruses, and virtually any effect you might need, all easily editable via Kemper’s Rig Manager app.
The unit’s construction is exceptionally sturdy, promising resilience against the rigors of touring. Integrated looper and tuner functionalities add further utility, and it supports up to four expression pedals for extensive parameter modulation. Coupled with its wealth of rear-panel connections, the Kemper Profiler Stage is one of the most complete guitar FX processors available.
EXPERT VERDICT: KEMPER PROFILER STAGE
EXPERT VERDICT: KEMPER PROFILER STAGE – Chris Bird
“I am thoroughly impressed with the Kemper’s sound quality, and the Stage version delivers the class-leading performance expected. Combined with user-profiling capabilities and a vast online library of profiles, the Kemper Stage is a worthwhile investment for guitarists seeking versatile and exceptional guitar tones.”
Read more: Kemper Profiler Stage Review
Best Budget Guitar FX Processor
Mooer GE200 multi-effects pedal showcasing its compact design and interface
For budget-conscious guitarists, the Mooer GE200 offers exceptional amp modeling and effects capabilities. (Image credit: Mooer)
4. Mooer GE200 Multi-Effects Pedal
The best guitar FX processor for balancing price and performance.
[Read our expert review](URL to Mooer GE200 review – if available, else remove line)
Specifications
Type: All-in-one amp & cab modeler, effects processor, drum machine, and looper
Effects: 70
Amp Models: 55 amp models & 26 speaker IR models
Connections: Input jack, stereo output jack, control jack, USB, headphones
Power Requirements: 9V DC
Reasons to Buy
- User-friendly interface
- Excellent sound quality
- Supports third-party IRs for custom cabinet simulations
Reasons to Avoid
- Durability not as robust as higher-end units like Line 6 or Boss
At a Glance
✅ Ideal for: Guitarists on a tight budget. The Mooer GE200 provides remarkable value, offering a wide array of sounds and features at an accessible price point.
❌ Not ideal for: Frequent gigging musicians. While capable, its build may not withstand the rigors of regular travel and stage use as well as more ruggedly built units.
Mooer, a brand from China, has steadily gained recognition for achieving an impressive balance between affordability and performance. Starting as a provider of budget-friendly alternatives to popular pedals, Mooer has evolved into a respected contender in the entry to mid-range market of guitar effects.
The Mooer GE200 exemplifies this evolution, delivering a selection of effects, amp models, and tools that could easily be mistaken for those found in more expensive units. The 70 included effects are of high quality, and the ability to load custom impulse responses to refine speaker outputs is particularly appreciated. It’s a highly capable unit that deserves serious consideration for its price.
Best Guitar FX Processor for Live Performance
Line 6 HX Stomp multi-effects pedal on a wooden floor emphasizing its small footprint
The Line 6 HX Stomp is perfect for enhancing your pedalboard for live guitar performances. (Image credit: Future)
5. Line 6 HX Stomp
The power of the full Line 6 Helix in a pedalboard-friendly size.
Read our expert review
Specifications
Type: Amp Modeler/Multi-effects Pedal
Effects: 190+
Amp Models: 77 guitar and bass, 37 cab models
Connections: 2x input, 2x output, 2x send/return, USB, MIDI in, MIDI out/through, headphones, TRS expression in
Power Requirements: 9V power supply, 900mA
Reasons to Buy
- Helix-quality effects in a compact pedal format
- Seamless integration with MIDI systems
- Highly portable for gigging musicians
Reasons to Avoid
- Setup can be less intuitive compared to larger Helix models
At a Glance
✅ Ideal for: Guitarists who perform live regularly. Its compact size, excellent amp models, and versatile connectivity make the HX Stomp perfect for integrating into a pedalboard for stage use.
❌ Not ideal for: Users who dislike menu navigation. The small screen and limited physical controls require some menu diving to fully utilize without the HX Edit app.
The HX Stomp packs over 190 effects, including selections from the Helix, M-Series, and legacy Line 6 libraries, along with the same amp, cab, and mic models as the full-size Helix. It also supports custom impulse responses, allowing you to load your own amp models or commercial IRs.
The fact that the HX Stomp incorporates the sounds and a full-color screen from larger units into such a compact form factor is truly remarkable. With MIDI in and out, it’s clearly designed for integration into rigs controlled by pedal switchers. This makes it particularly appealing for those who need a powerful, yet space-saving solution.
Although the HX Stomp has fewer physical controls, it offers extensive customization and a broad spectrum of professional-grade effects. For guitarists needing specific modulations, delays, or cab simulations readily available, the HX Stomp is an intelligent, compact option. The capacitive footswitches simplify assignment and editing, minimizing the need to consult the manual. For those who don’t need amp modeling and prefer more footswitches, the HX Effects is also available.
EXPERT VERDICT: LINE 6 HX STOMP
EXPERT VERDICT: LINE 6 HX STOMP – Alex Lynham
“For guitarists seeking specific modulations, delays, or cab simulations in a pinch, the HX Stomp is a clever, space-efficient solution. The capacitive footswitches make adjustments straightforward, reducing reliance on the manual.”
Read more: Line 6 HX Stomp Review
Best Creative Guitar FX Processor
Eventide H90 Harmonizer multi-effects pedal highlighting its unique design and controls
For unparalleled creative effects, the Eventide H90 is in a class of its own. (Image credit: Future)
6. Eventide H90 Harmonizer
The best guitar FX processor for adventurous sonic exploration.
Read our expert review
Specifications
Type: Multi-effects Pedal
Effects: 62
Amp Models: N/A
Connections: 4x ¼ inch TS mono jack inputs, 4x ¼ inch TS mono jack outputs, 2x ¼ inch TRS / Expression pedal or Aux Switch, USB-C, MIDI In, MIDI Out/Thru
Power Requirements: 12V DC @ 1A / Center Positive (+), 5.5/2.5mm jack
Reasons to Buy
- Exceptional effect algorithms for unique sounds
- Flexible signal routing options
- Hands-on, intuitive control interface
Reasons to Avoid
- Software editing can be more efficient for complex setups
At a Glance
✅ Ideal for: Guitarists looking for unconventional and experimental effects. The H90 offers a range of truly unique effects perfect for players who want to push sonic boundaries.
❌ Not ideal for: Guitarists needing amp modeling. The H90 is purely an effects processor without amp modeling capabilities, so it won’t replace your amp rig.
The Eventide H90 Harmonizer is the successor to the highly regarded Eventide H9, a staple on many professional pedalboards. Recognizing the popularity of using multiple H9s for its diverse algorithms, Eventide essentially combined two H9s into a single, more powerful unit with the H90.
The H90 excels at blending standard delays and reverbs with more experimental pitch-shifting effects, making it perfect for sonic innovators. If you feel limited by conventional effects and seek something truly unique, the H90 could be the ideal choice.
It offers incredible routing flexibility for integrating into any rig, allowing you to position effects before or after your amplifier for enhanced versatility. Beyond its appeal to guitarists, the H90 is also a valuable studio tool, enhanced by its efficient editing app.
Read the full Eventide H90 Harmonizer Review
EXPERT VERDICT: EVENTIDE H90 HARMONIZER
EXPERT VERDICT: EVENTIDE H90 HARMONIZER – Si Arblaster
“While some algorithms are more situation-specific, the sheer number of options is staggering and justifies the price, even though it’s a significant investment for many. It surpasses its predecessor in every aspect, making the price tag justifiable.”
Read more: Eventide H90 Harmonizer Review
Best Guitar FX Processor for Beginners
NUX MG-400 multi-effects pedal on a wooden floor showcasing its color display and footswitches
The NUX MG-400 is an excellent, user-friendly guitar FX processor for beginners. (Image credit: Future/Matt McCracken)
7. NUX MG-400
Affordable, reliable, and exceptionally user-friendly.
Read our expert review
Specifications
Effects: 25 amp models, 512 IRs, extensive effects library
Footswitches: 4
Sockets: Input, Stereo out, USB, Phones, Power, Aux In
External Patch Loading: Yes
Amp Simulation: Yes
Bypass: Buffered
Reasons to Buy
- Extensive range of amp and effect tones
- Color LCD screen for easy navigation
- Very straightforward and simple to use
Reasons to Avoid
- Presets may require tweaking for optimal sound
At a Glance
✅ Ideal for: First-time multi-effects users. The MG-400’s affordability and superb selection of amps and effects make it a fantastic starting point for beginner guitarists.
❌ Not ideal for: Users who prefer plug-and-play simplicity. While user-friendly, achieving the best tones often requires some adjustment of the factory presets.
NUX has built a reputation for making musical equipment, from amps to electronic drum kits, accessible to everyone. The MG-400, their latest guitar FX processor, continues this tradition.
The MG-400 builds upon the success of the MG-300 and is powered by NUX’s advanced White-Box Amp Modeling algorithm. It introduces scene functionality, allowing users to set up snapshots within presets for easy access to multiple effects configurations—ideal for live performances. The NUX MG-400 is a remarkably powerful multi-effects unit that significantly outperforms its price range.
EXPERT VERDICT: NUX MG-400
EXPERT VERDICT: NUX MG-400 – Matt McCracken
“After some adjustments, I achieved genuinely pleasing clean tones with rich ambience from the reverbs and delays. The shimmer reverb is particularly delightful, and the panned delay effect is incredibly engaging, especially with headphones.”
Read more: NUX MG-400 Review
Best Compact Guitar FX Processor
Fractal Audio VP4 Virtual Pedalboard multi-effects pedal on a concrete floor highlighting its small size
With its compact size, the Fractal VP4 is ideal for adding a wide range of effects to your existing pedalboard. (Image credit: Future)
8. Fractal VP4 Virtual Pedalboard
A compact multi-effects pedal with versatile, high-quality tones.
Read our expert review
Specifications
Type: Multi-effects Pedal
Effects: 300
Connections: Stereo input/output, SPDIF in/out, MIDI in/out, 2 expression pedal inputs, USB-C, power input
Power: 9V DC 1.3A
Reasons to Buy
- Extensive selection of high-quality effects
- Intuitive and user-friendly interface
- Versatile connectivity options
Reasons to Avoid
- Limited to four simultaneous effects
At a Glance
✅ Ideal for: Adding to an existing pedalboard. The VP4 offers a vast array of drives, delays, reverbs, and modulation effects, making it a great choice for augmenting your live setup.
❌ Not ideal for: Experimentally inclined players who need more than four simultaneous effects. The limitation to four concurrent effects might restrict more adventurous sonic explorations.
The Fractal VP4 Virtual Pedalboard focuses purely on effects, omitting amp simulations and impulse responses, making it perfect for adding effects to your pedalboard without redundancy. Housed in a robust chassis, it’s built for the demands of gigging guitarists who need to conserve pedalboard space.
The VP-4 is remarkably intuitive, allowing for immediate effect chaining without needing the manual. It also includes editing software for deeper customization, which is equally user-friendly. A standout feature is the always-on micro tuner, excellent for home practice and studio recording, though perhaps too small for live stage use.
The delays and reverbs are of exceptional, studio-grade quality. It includes a wide range of classic tones alongside more unique sounds like granular delays and filter sweeps. The drive effects are equally impressive, closely emulating the sound of real overdrive pedals when placed before an amplifier.
EXPERT VERDICT: FRACTAL VP4 VIRTUAL PEDALBOARD
EXPERT VERDICT: FRACTAL VP4 VIRTUAL PEDALBOARD – Alex Lynham
“The breadth of high-quality effects in the VP-4 makes it ideal for both specific pedal replacements and broader sonic experimentation. It works exceptionally well with distortion and pitch-shifter pedals, but could also viably replace an entire pedalboard, including drive effects.”
Read more: Fractal Audio VP4 Virtual Pedalboard Review
Best Guitar FX Processor for Bass
Line 6 Helix LT with purple lighting on a concrete floor showcasing its robust build
The Line 6 Helix LT offers fantastic amp modeling and effects options specifically for bass guitarists. (Image credit: Future)
9. Line 6 Helix LT
A top-tier guitar FX processor option for bassists.
Read our expert review
Specifications
Type: Amp Modeler/Multi-effects Pedal
Effects: 70
Amp Models: 41 guitar, 7 bass
Connections: 1 x 1/4″ (guitar), 2 x 1/4″ (returns), 2 x XLR (main out), 2 x 1/4″ (main out), 2 x 1/4″ (sends), 1 x XLR (AES/EBU, L6 link), MIDI In, Out/Thru, USB Type-B, 1 x 1/4″ headphones, 1 x RJ45 (Variax), 1 x 1/4″ (expression2/external amp switch)
Power Requirements: Mains power (IEC lead)
Reasons to Buy
- Extensive selection of excellent bass amp models
- Broad range of effects suitable for bass
- Versatile connectivity for bass rigs
Reasons to Avoid
- Not the most compact option for pedalboards
At a Glance
✅ Ideal for: Bassists seeking a dedicated multi-effects pedal. With a wide array of top-tier bass amp models, the Helix LT is excellent for both bass and guitar players.
❌ Not ideal for: Users needing a highly compact pedal. The Helix LT is relatively large, so it may not be the best choice for those with limited space in their setup.
While dedicated multi-effects pedals for bass guitar are less common, the Line 6 Helix LT, primarily designed for guitarists, includes an outstanding selection of bass amp models suitable for both four and five-string basses.
It features 17 distinct bass amp models, including official Ampeg models due to Yamaha’s ownership of Ampeg. You also get models based on Fender, Mesa/Boogie, Gallien-Krueger, Orange, and Aguilar amps, providing ample options for even the most discerning bassist.
Combined with a vast number of effects, the Helix LT becomes an incredibly versatile bass rig. With octave effects for deep, rumbling tones, synth sounds, envelope filters, delays, chorus, and numerous modulation effects, it can produce almost any bass tone imaginable.
EXPERT VERDICT: LINE 6 HELIX LT
EXPERT VERDICT: LINE 6 HELIX LT – Trevor Curwen
“While the LT omits some functionalities of its more expensive sibling, it retains the same exceptional sound quality and ease of use, including straightforward editing from the front panel or software editor. For most users, the trimmed features are unlikely to compromise its potency for live use, unless the additional send/returns and a third expression pedal are crucial.”
Read more: Line 6 Helix LT Review
Spec Comparison
Below is a side-by-side comparison of the guitar FX processors featured in this guide to further assist your decision-making.
Swipe to scroll horizontally
| Model | Amps | FX | Custom IRs | Inputs | Outputs | MIDI |
|---|---|---|---|---|---|---|
| Line 6 Helix | 72 | 192 | 128 | 3 | 5 | Yes |
| Neural DSP Quad Cortex | 90 | 70 | 256 | 2 | 4 | Yes |
| Kemper Profiler Stage | 300 | 136 | Unlimited | 2 | 8 | Yes |
| Mooer GE200 | 55 | 70 | 26 | 1 | 2 | No |
| Line 6 HX Stomp | 72 | 192 | 128 | 2 | 2 | Yes |
| Eventide H90 | N/A | 62 | N/A | 4 | 4 | Yes |
| NUX MG-400 | 25 | 48 | 512 | 1 | 2 | No |
| Fractal Audio VP4 | N/A | 300 | N/A | 2 | 2 | Yes |
| Line 6 Helix LT | 72 | 192 | 128 | 1 | 4 | Yes |
Also Consider
The guitar FX processors listed above represent our top recommendations, but if you haven’t found exactly what you need, we’ve reviewed many more.
Boss GT-1000 guitar fx processor
16 amp models | 116 effects
Building on the success of the 500 series, Boss’s GT-1000 combines all three into a sleek and robust unit. It features comprehensive inputs and outputs, including USB recording and an expression pedal input. ★★★★½
Read more: Boss GT-1000 Review
Boss GT-1000 guitar fx processor
27 amp models | 82 effects
Fender’s modeling offering is versatile, featuring their signature clean tones and a wide range of amp voicings, from British styles to high-gain EVH tones. ★★★★½
Read more: Fender Tone Master Pro Review
Boss GT-1000 guitar fx processor
10 amp models | 68 effects
The Zoom G5n packs 68 digital effects, 10 amp and cabinet emulators, and a stereo looper, making it a great option for beginners or those expanding their sonic toolkit. ★★★★
Read more: Zoom G5n Review
Boss GX-100 guitar fx processor
23 amp models | 150 effects
Priced at about half the cost of the GT-1000, the Boss GX-100 offers professional-level multi-effects with 23 amp models and 150 effects in a sleek design. ★★★★½
Read more: Boss GX-100 Review
Boss GT-1000 guitar fx processor
22 amp models | 100+ effects
The Zoom MS-50G now features over 100 effects and 22 amp models, with up to six simultaneous effects, plus a chromatic tuner, making it versatile for any scenario. ★★★★
Read more: Zoom MS-50G MultiStomp Review
FAQs
Headrush Pedalboard multi-effects pedal in a studio setting
(Image credit: Future)
What should I look for in a guitar FX processor?
Choosing the best guitar FX processor involves navigating a vast selection. Budget is a primary factor, but the market offers options ranging from comprehensive ‘studio-in-a-box’ units to compact pedals with essential effects. Key considerations include:
How many effects are too many in a guitar FX processor?
While multi-effects units offer a plethora of options, consider the effects you’ll realistically use. It’s tempting to explore every preset, but most guitarists typically rely on a core set of essential guitar effects.
Evaluate if a smaller, more focused unit might better serve your needs, or if you require a comprehensive processor with a wide array of sounds. A benefit of extensive effect libraries is the potential for creative discovery. For beginners, the under $200 range provides plenty of exciting options.
If maximizing the number of effects in one unit is your goal, numerous choices are available across all price points, from budget-friendly Zoom pedals to entry-level models from major brands like Boss and Line 6.
What benefits do higher-priced guitar FX processors offer?
Moving up in price typically unlocks additional features like loopers, robust build quality, and enhanced connectivity. Many modern guitar FX processors integrate with smartphone apps for detailed parameter editing.
It’s also common for these units to function as audio interfaces or amp modelers with USB connectivity, allowing for direct recording into a DAW like Ableton Live or Pro Tools.
Our advice remains: identify your realistic needs and budget, and avoid being swayed by unnecessary features unless they align with your specific requirements.
Are guitar FX processors a worthwhile investment?
The value of a guitar FX processor depends on your priorities. Traditional pedalboards offer tactile control and easy customization, but multi-effects units offer advantages like reduced cable clutter, portability, and often better value for money when considering the cost of individual pedals.
For pure value, guitar FX processors are generally a sound investment, providing extensive capabilities at a lower overall cost, albeit sometimes with a steeper learning curve compared to individual pedals.
How We Test Guitar FX Processors
Line 6 HX Stomp multi-effects pedal being used in a testing environment
(Image credit: Future)
How do we rigorously test guitar FX processors?
Testing a guitar FX processor is similar to testing standalone pedals. While sound quality is subjective, our evaluation process includes objective criteria to ensure every recommended unit meets high standards.
We begin by assessing the build quality of the enclosure, controls, and footswitches, ensuring robustness and durability underfoot. Dials are checked for smooth action and appropriate resistance to prevent accidental adjustments.
Footswitch spacing and usability are also evaluated, along with the action and responsiveness of any included expression pedals. Our aim is to ensure these processors simplify, not complicate, your musical workflow.
Sonic testing starts with default settings, typically with all parameters at the ’12 o’clock’ position. We then adjust each parameter to explore the tonal range and identify usable sounds. We extensively test amp and effect emulations and presets, editing them to assess the ease and depth of customization.
Read more about how we test music-making gear and services at MusicRadar.
