Top 7 Frequency Splitter Plugins 2023 To Separate Bands

If you’re a musician who likes to play in multiple genres, you know the importance of having the right frequency/crossover splitter plugin.

These plugins allow you to split the signal from your instrument into different frequency ranges, which can then be processed and mixed separately. It gives you greater control over your sound and allows you to create unique mixes for each style of music. 

With that said, we will look at seven of the best frequency/crossover splitter plugins currently available. We’ll also discuss some features that make them stand out from the competition. So if you need a new plugin for splitting frequencies, read on!

7 Best Frequency Splitter Plugins 2023

1. Klevgrand Gaffel

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The Klevgrand Gaffel plugin is a versatile audio processing tool that specializes in splitting audio into different frequency bands.

It allows you to create multiband effects by applying different processing to individual frequency ranges of an audio source. Gaffel supports creating up to eight different groups, ensuring that frequency synchronization occurs within the selected group, providing unparalleled flexibility and organization.

Key Features:

• Linkwitz-Riley Crossover Filter Algorithm
  Gaffel uses the high-quality Linkwitz-Riley crossover filter algorithm, ensuring precise and professional-grade audio processing.
• Global Frequency Parameter Synchronization
  Frequency parameters are synchronized globally between instances of the plugin. This means that when multiple instances belong to the same group, their frequency settings are synchronized. This feature simplifies the workflow and makes working with the plugin in any DAW easy.

Compatibility:

Gaffel is compatible with Windows and Mac OS and is available in VST 2, VST 3, AAX, and AU plugin formats.

Summary:

The Klevgrand Gaffel plugin boasts a top-tier Linkwitz-Riley crossover filter algorithm, ensuring high-quality processing. A unique feature is global frequency parameter synchronization, simplifying multi-instance management in any DAW. With support for up to eight different groups, you gain precise control over audio frequencies for professional results.

2. Blue Cat’s Audio Mixer

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Key Features:

• Parameter mapping
  The MB7 allows you to map any of its parameters to external MIDI controllers so that you can control them with knobs, sliders, or buttons on a MIDI controller. This feature is called “parameter mapping” or “MIDI learn.” Once the parameter is mapped, you can control the parameter’s value by moving the knob or slider on the MIDI controller.
  This allows you to adjust the plugin’s parameters while the audio plays, which can be useful for live sound applications.
• Dual Mode
  The plugin has a Dual Mode feature, which allows you to apply different processing on a stereo input signal’s left and right channels. In this mode, the plugin creates two independent processing chains, one for the left and the right, allowing you to apply different effects, EQs, or other processing on each channel.
• Interface
  The MB7 has a user-friendly interface that allows you to navigate and adjust the various mixing and routing options easily. It’s divided into a mixer section, an input/output routing section, a global section, a modulation section, and a preset manager, making it easy to control and browse the plugin through these windows.
• Effects
  You can add effects on the seven bands/channels, ranging from the chorus, flanger, compressor, reverb, EQ, etc. That way, you can add interesting effects to one band or frequency range, not the entire spectrum. That allows for deep customizations and sound sculpting.
• MACROs
  The plugin includes a set of macro controls that allow you to quickly and easily adjust multiple plug-in parameters. These macro controls are essentially knobs or sliders that can be assigned to control multiple parameters of the plug-in simultaneously. You can make global adjustments to the overall sound of your mix or create complex modulation effects without manually adjusting each parameter. The macro controls can be customized to control any combination of parameters and can also be automated within a DAW for precise control over the mix.

Compatibility:

It is available in VST, AAX, and AU plugin formats, which are compatible with Windows and Mac operating systems.

Summary:

One of the standout features of the MB7 Mixer is its built-in sidechain feature. This allows you to create sidechain compression effects, which are commonly used in music production to create a “pumping” effect in the bass or to make space for vocals in a mix. Additionally, the plugin also includes the ability to route audio between the slots and the main output, which further increases the possibilities for audio manipulation.

3. Waves StudioRack (Our Pick)

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StudioRack, Waves’ plugin chainer, benefits die-hard Waves enthusiasts because it can host plugins from other manufacturers.

StudioRack is a plugin utility originally launched in 2014 by Waves and recently upgraded to allow users to create chains of plugins. The goal is to view them as a unified whole rather than a collection of unrelated plugins.

A processing chain for the vocals or the percussion bus is required. Alternatively, you may build a multi-effects rack to simultaneously process delay, reverb, and pitch shifting. StudioRack is perfect for projects like these.

Key Features:

• Interface
  StudioRack can be used like any other effect plugin in your favorite audio editing software. A plugin, parallel processing split, or multiband split can occupy each of the eight available slots in each instance. Copying and pasting plugins and presets are as simple as dragging and dropping.
  If you need to flip the phase of the incoming signal, you can use the phase inversion button and adjust the input gain to keep the gain at unity. It’s convenient to access the volume control, peak reading, and gain attenuation meter immediately after the amplified signal.
• Parallel Processing
  Multiband channels can be separated using the plugin, supporting as many as five separate frequency bands per instance. It’s now possible to make your multiband plugins with this method.
  In addition, you can use the bands to apply different plugins, such as a distortion effect to the highs and a saturation effect to the midrange. You can fine-tune the crossover point by adjusting the frequency difference between the channels, though there is no graphical representation of this information. In the same way, you may adjust the volume and stereo balance independently for each.
• Macros
  Since StudioRack can store many plugins, it could become unmanageable if too many were to be kept in one area. So, in a pleasant twist, it comes with eight customizable macros that you can use to keep everything under control. The Apply button on the macros panel, the plugin controls, and the macros knob are the three ways to assign plugin features to macros.
  Macros transform StudioRack from a simple utility plugin into a flexible multi-effects rack. The possibilities are exciting, ranging from offering quick access to, for example, the amount of compression in a vocal chain to delay, reverb or other effects in a chain applied to a breakdown.
• More Processing Power
  You can use as many plugins as you like while mixing intensive sessions without worrying about crashing your computer. StudioRack facilitates the migration of plugin processing from a local PC to a high-powered SoundGrid DSP server whenever you’re ready to switch.
  You can offload all of the plugins in a given StudioRack channel’s chain with a single mouse click. StudioRack can be used with only your computer or with DSP offload via SoundGrid, depending on your needs and preferences. Find out how to use StudioRack in a SoundGrid environment.

Compatibility:

The OS requirements for this plugin are Windows 7 or higher for PC and macOS 10.9 or higher for Mac. It comes in VST/RTAS/AU/AAX formats and supports 32 and 64 bit systems.

Summary:

If you use many digital audio workstations, SudioRack is a good tool for coming up with chain mix ideas that you can easily transfer between them. The plugin’s multi-band capabilities make it even more potent, and its stereo imaging functionality, which works even without loaded plugins, helps the system conserve resources. Thanks to Waves for providing StudioRack at no cost to the public.

4. FL Frequency Splitter (FL Studio Only)

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The FL Frequency Splitter is a device that lets you split audios into low and high-frequency bands or low, mid, and high-frequency bands. This is useful for complex multi-band effects processing, allowing you to route bands to separate audio outputs.

The Frequency Splitter has several features that make it an ideal choice. First, it provides zero latency, ensuring no delay between the input and output signal. Additionally, the Splitter has Minimum Phase crossovers designed to minimize signal distortion.

Finally, the Splitter also has high fidelity and sensitive Linear Phase crossover filters, which ensure that the signal is accurately reproduced.

Key Features:

• Equalization Curve
  This curve provides a more balanced sound, with less bass and treble. As a result, the FL Frequency Splitter can help you get the most out of your system, regardless of size or power.
• Cut-Off Frequency
  This device splits the audio signal into two separate frequency ranges, allowing you to optimize each range for its respective purpose. For example, you can use the low cut-off frequency to eliminate background noise or the high cut-off frequency to improve clarity and detail.
• Mute and Solo Switch
  The FL Frequency Splitter is equipped with mute and solo switches that help the user to manage their audio experience. The solo switch allows the user to listen to only a specific frequency range, while the mute switch disables all sound. This product is ideal for those who want to control their listening experience or for those who need to be able to focus on a particular frequency range.
• Side Chain
  The side chain allows sound engineers to route signals from one track to another. The side chain can be useful for creating space in a crowded mix or dealing with troublesome frequencies. The side chain can also trigger effects on other tracks, such as compression or reverb.

Compatibility:

It is compatible with macOS and Windows. It comes in VST3 and AU formats.

Summary:
The Frequency Splitter provides zero latency, minimum phase crossovers, or high fidelity and sensitive linear phase crossover filters, ensuring flawless recombination with dry or other signals. These features make it an essential tool for any musician or audio engineer.

5. TBProAudio ISOL8 (Flexible MB Splitter)

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The ISOL8 from TBProAudio is a versatile multi-band splitter sound engineers can use to process and shape audio in several ways. With its sophisticated plugin chains, ISL08 provides great flexibility in processing audio.

Additionally, the split signal can be combined, making it possible to create a wide range of unique sounds. Isol8 is primarily designed on the master track but can also be used on individual audio track buses.

All these make it an incredibly versatile tool used in various production scenarios. Overall, the ISOL8 is a high-quality piece of equipment that will meet the needs of even the most demanding audio engineer.

Key Features:

• Keyboard Control
  One of its key features is keyboard control, which allows you to quickly and easily adjust the levels of individual tracks. The keyboard control can be particularly useful when you’re working with many tracks and need to make quick adjustments.
• Multi-Channel Split
  ISOL8 is a multi-channel audio plugin that lets you split your audio signal into frequency bands and then process each band individually. The multi-channel split can be useful for isolating certain frequencies to apply different effects to them or for helping to mix and match different sounds.
• Non-GPU and GPU Versions
  The non-GPU version is simpler and does not offer as many features as the GPU version. The GPU version, however, allows the user to take advantage of their computer’s graphics processing unit to increase the overall quality of the sound.
• Centered Monitoring
  The centered monitoring allows you to monitor each element in your mix without affecting the main mix output. This feature can be helpful when trying to identify problem areas.
• Adjustable Output Level
  The plugin features an adjustable output level so that you can fine-tune the level of each frequency band. The adjustable output level is especially useful when working with complex mixes, as it allows you to focus on one frequency range at a time.
• Loudness Dim Function
  The loudness dim function allows the user to attenuate or boost the level of specific frequencies quickly. This function can be useful for addressing problem frequencies sticking out or taming frequencies overwhelming the mix.

Compatibility:
This plugin is compatible with macOS and Windows. It works with VST, AAX, and AU plugins.

Summary:
It allows you to divide the frequency spectrum into five separate bands, which can then be soloed or muted independently. This plugin can be extremely useful when focusing on specific frequencies during mixing and mastering.

In addition, the ISOL8 features a flexible multi-band splitter that can be configured to split the spectrum in any way you see fit. The multi-band splitter allows you to tailor the ISOL8 to your specific needs, making it an incredibly versatile tool.

6. Effect Grid Multiband Processor (Band Splitter / Plugin Chainer)

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The Effect Grid is a multiband processor that splits the signal into 9 bands on a 3×3 grid. The Effect Grid is a powerful tool for sound design and music production. It allows the user to split the incoming signal into 9 bands, each with its own cutoff threshold, frequency, and gain parameters. These parameters allow for fine-grained control over the sound of the input signal.

The grid layout makes it easy to see how the various parameters interact, and the overall effect can be controlled by modulation sources such as LFOs and envelopes. In addition, the Effect Grid can be used as a plugin chaining tool, allowing for complex signal processing chains to be created. Overall, the Effect Grid is a versatile and user-friendly tool that sound engineers can use in various ways.

Key Features:

• Gain Control
  With the gain control, you can remix audio by adjusting the frequency amplitudes. The gain control allows you to create unique soundscapes and add new dimensions to your music. You can use it to remix audio by adjusting the frequencies up or down.
• Wet/Dry Mix
  The Wet/Dry Mix is a crucial feature of most Effect Grid multiband processors. It allows the user to mix the processed signal with the dry, unprocessed signal. This function can be extremely helpful in achieving a particular sound, as it allows for more flexibility and control. Audio engineers can also use the Wet/Dry Mix to create unique effects by chaining multiple plugins.
• M-S-B Controls
  It features M-S-B Buttons, M for Mute, S for Solo, and B for Bypass controls. This feature allows you to split the signal into multiple frequency bands and process each band separately. These controls make it ideal for creating custom EQ shapes or applying different effects to different parts of the spectrum.
• Transition Type Change
  One of the features is the ability to switch the type of transition between amplitude bands. This changes the transition pace and gives you more control over how the bands separate. With this feature, you can better match your source sound. This can be especially useful when creating a particular soundscape or atmosphere.

Compatibility:
This plug-in is compatible with macOS and Windows. It is available in VST, VST3, AAX, and AU plugin formats.

Summary:
The Effect Grid Multiband Processor is a plug-in that lets you divide the input audio into frequency and amplitude bands. You can then process each band separately with any other plug-ins. This plugin is perfect for processing different audio signal parts with different plug-ins.

For example, you could use one plug-in to process the low frequencies and another plug-in to process the high frequencies. Or you could use one plug-in to process the left channel and another to process the right channel. The possibilities are endless!

7. Unfiltered Audio Triad

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Unfiltered Audio Triad is a three-band frequency splitter that can process low, mid, and high frequencies using various effect rows. From complicated distortions to elaborate delays, multi-band compression to frequency-dependent reverb, pitch shifting, and a slew of modulation-based effects, Triad makes it easy to set up and control.

The upper horizontal bar has the settings and a massive preset collection, which includes presets created by masters such as Glitchmachines and Richard Devine. In addition, Triad offers clear color feedback and easy organization, making it simple to find the perfect sound for your project. Unfiltered Audio Triad is the perfect solution whether you’re looking for a subtle enhancement or a complete overhaul.

Key Features:

• 2X and 3X Parallel
  The 2x parallel mode is great for using two different EQs on the same signal, while the 3x parallel mode allows you to create three distinct bands that can be independently EQ’d.
• FFT Visualizer
  The FFT visualizer shows the frequency spectrum of an audio signal in real-time, making it easy to identify spectral features such as base frequencies, harmonics, and transient peaks.
• Reverbs
  Reverbs are particularly important for creating a sense of space in your mix. By controlling the reverb’s size, density, and decay, you can create everything from a small room to a vast canyon. The filters allow you to shape the tone of your sound, while the modulation can be used to create movement and interest.
• Multi-Band Compression
  Multi-band compression is a powerful tool that can help to even out the levels of an audio signal, providing a much more consistent sound. The Triad features three bands of compression, each of which can be independently controlled. The multi-band compression allows the user to tailor the compression to their specific needs, ensuring that the audio sounds great no matter what.
• Permutation Engine
  The Unfiltered Audio Triad features Permutation Engine, which allows you to rotate each active band’s function. This allows you to take an effect setup from one band and hear it on another without damaging the rest of your presets. With this feature, you can create new and unique sounds that would otherwise be impossible.

Compatibility:

The Unfiltered Audio Triad is compatible with macOS and Windows. It comes in VST, AU, and AAX formats.

Summary:
The Unfiltered Audio Triad is a three-band frequency splitter that can handle the low, mid, and high-frequency bands using distinct effect rows. With 40 effect cells organized into eight categories, the Triad gives users much flexibility in processing their audio.

Whether you’re looking for a classic three-band splitter or something with more flexibility, the Triad is a great option. And with its affordable price, it’s a great value for your money. If you’re looking for an audio splitter that can provide you with a wide range of sounds, the Unfiltered Audio Triad is a great choice.

Free Bonuses:

1. Robin Schmidt CrossOver (FREE)

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Robin Schmidt CrossOver is a plugin that allows you to create your own multiband effects in a modular (sub)host environment. It is simple to use and provides a great deal of flexibility in terms of signal processing.

CrossOver divides an incoming signal into numerous (maximum of four) frequency ranges, allowing you to manipulate each range independently. This allows you to create unique effects that would not be possible with a single-band processor.

In addition, CrossOver includes a built-in modulation generator that can be used to modulate the filters’ cutoff frequencies. This provides even more flexibility in terms of sound design. Robin Schmidt CrossOver is a powerful and versatile tool for sound designers and engineers.

Key Features:

• LPF/HPF
  CrossOver features two types of filters – low pass and high pass – that allow users to control which frequencies are audible. Low pass filters attenuate (reduce the amplitude of) frequencies above the cutoff frequency, while high pass filters attenuate frequencies below the cutoff frequency. The cutoff frequency is the frequency at which the signal’s amplitude is reduced by 3 dB.
• Adjustable Slope
  Robin Schmidt’s Crossover is a plugin that allows users to adjust the slope of their crossover between 96 and 12 dB/oct. This is helpful for those who want to ensure that their crossover slopes are optimally set for their particular audio system.

Compatibility:
It is compatible with macOS and Windows (32-bit only). It is available in VST plugin formats.

Summary:
The Robin Schmidt Crossover is a versatile and easy-to-use tool for DJs, producers, and live sound engineers. It features an adjustable slope that can be set between 96 and 12 dB/oct, making it perfect for various applications. The crossover also has a built-in EQ that allows you to fine-tune the sound of your system.

2. TheZhe TheSplit (Multimode Audio Splitter)

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TheSplit is a plugin that helps to process audio signals. It offers four different modes for dividing a signal into two complementary outputs.

The first mode is the mid-side algorithm which separates the center and sides. The second mode is the low & high mode which splits the signal into low and high frequencies. The third mode is the attack & sustain mode which splits the signal into attacks and sustains.

The fourth mode is the loud & soft option, separating louder signals from quiet parts. TheSplit has many uses and can be very helpful in audio production. Thanks to its four different modes, it is versatile and can be used in various situations. It is simple to use and very user-friendly. If you are looking for a plugin to help you with your audio processing, then TheSplit is worth checking out!

Key Features:

• Mid-Side Algorithm
  One of the plugin’s key features is its mid-side algorithm and ability to split files into multiple tracks. The mid-side algorithm allows the user to split the file evenly between the left and right channels, making it perfect for creating custom stereo tracks.
• Flip Parameter
  The Zhe The Split plugin is a fantastic tool for any audio engineer. This is because it offers the ability to easily and quickly switch the split outputs. This is done by simply flipping a parameter, which is extremely convenient.
• In-Built Anti Aliasing
  One of its key features is its in-built anti-aliasing, which can help to reduce the distortion that can occur when audio signals are converted from one format to another. This can be particularly useful when working with digital audio, as it can help to ensure that your recordings sound as clean and clear as possible.

Compatibility:
It is compatible with macOS and Windows. It runs in VST3 and AU plugins.

Summary:
TheSplit plugin provides a quick and easy way to divide a signal into two complementary outputs. It offers four modes: mid-side, low & high, attack & sustain, and loud & soft. Each mode has its own distinct advantages, making TheSplit an essential tool for any producer or engineer. With its simple interface and powerful algorithms, TheSplit is the perfect tool for creating dynamic mixes.

Bonus:

Kilohearts Multipass (Advanced Splitting & Processing)

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Kilohearts Multipass is a multiband modular Snapin Host that allows you to split the incoming signal into up to 5 easily tweakable frequency bands and apply endless effects to each band. These can then be heavily modified with Kilohearts’ sophisticated modular modulation technology.

This makes it perfect for studio and live use, as you have complete control over the sound. The multiband nature of the plugin also means that you can save on CPU usage, as each band is processed separately.

Multipass comes with various factory presets from some of the industry’s most well-known sound designers so you can get started immediately. You can also create your own presets and share them with the community. With its flexible modulation options and high-quality sound, Kilohearts Multipass is a must-have plugin for any serious musician or producer.

Key Features:

• Snap-in Effects
  Multipass effects are called ‘Snap-ins,‘ which can be loaded as standalone effects. You can use as many or as few Snap-ins as you like in Multipass, and they can be arranged as you want. Snap-ins allow you to change sounds quickly with just one plugin rather than several. With Multipass, you have all the control you need to get the sound you want.
• Stereo Width
  The Kilohearts Multipass plugin is a great tool for those looking to add some stereo width to their track. The plugin allows you to control the left and right channels independently, giving you a lot of flexibility in how you want to shape the sound.
• Disperser
  The Disperser is one of the key features in Kilohearts Multipass. It helps to quickly and easily create complex, modulated pads. Simply add an audio file to Disperser, and then use the various modulation options to add interest and variation.
  By layering several files and modulating them with different parameters, it’s possible to create pads with a wide range of textures and colors. With the Disperser, there’s no need to worry about fumbling around with many different plugins -sound engineers can handle everything within a single plugin.

Compatibility:
This plug-in is compatible with macOS and Windows. It is available in VST and AU plugin formats.

Summary:
Kilohearts Multipass is a powerful mixing and creative effects tool that is flexible and quick to use. It provides users with workflow and fun factor value, making it a go-to tool for mix-sculpting. The full set of Multipass features almost certainly will become one of the most frequently used tools in any audio engineer’s toolbox.

In addition, Kilohearts’ proprietary Snapin effects modules can be used in Multipass, giving users access to a wide range of high-quality effects. Overall, Multipass is an immensely useful tool that any serious audio engineer should consider adding to their arsenal.

Conclusion

Frequency crossover splitters are a great way to increase the quality of your audio signal. The Frequency Splitter’s routing is its most perplexing feature.

Because the signals carried by “MAIN OUT” and “SENDS” are identical, you might send the same signal to different parts of your sound system. The “SENDS” could be used for different purposes, like creating a separate monitor mix or feeding a recording device, while the “MAIN OUT” feeds the main PA.

You can use the crossover to route low frequencies to one destination and high frequencies to another. That way, you can optimize your sound system for each range of frequencies.

When you master Frequency Splitter’s routing options, you’ll unlock a wealth of possibilities in high-level signal processing.