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The Ultimate Analog and Digital Effects Processor: Analog Heat +FX

The Analog Heat +FX is a versatile sound manipulation and coloration device, providing an array of analog stereo distortion circuits and digital effects. It enables users to experiment with various sound processing techniques, from subtle enhancements to complete annihilation of the source sound. Offering eight unique circuits, it caters to a range of sound sources and requirements. Its digital effects include Warble, Chorus, Delay, Reverb, Bit & Sample rate reduction, Compressor, and Bass Focus, which collectively contribute to a dynamic and textured soundscape. The unit also features a Flow page for easy management and reordering of effects, an adjustable filter and EQ for refining frequency and overtone content, and a Mod page for advanced modulation experimentation. For connectivity, it supports stereo inputs and outputs, control voltage, expression inputs, foot switches, and MIDI, along with USB for integration with other devices. Suitable for both individual tracks and the master bus, it serves as a comprehensive tool for adding analog warmth to your sound explorations.

The ability to rearrange effects in a serial manner is immensely powerful, as it allows the user to create a distinct signal flow tailored to their specific needs and creative vision. By rearranging effects such as Reverb, Delay, Chorus, Warble, Bits, Compressor, and Bass Focus, you can sculpt a diverse palette of sounds and effects that cater to your desired sonic outcome.

Analog Heat +FX

For instance, using Reverb and Delay on a synth might add depth and a sense of space, while Chorus could be applied to thicken the sound. For drums, using Compressor and Bass Focus could tighten the rhythm section, while Warble might add an unexpected, lo-fi feel. Applying the Bits effect to a guitar could result in a crunchy, digitized sound, and the use of Delay might create a psychedelic echo.

The Flow page, where these effects can be quickly rearranged, muted, and unmuted, provides a user-friendly interface for crafting unique signal flows and timbres. This flexibility allows musicians to add depth, dimension, and complexity to their music, showcasing the nuances of each effect. With 512 preset slots, users can save their creative explorations for instant recall later, offering endless possibilities for sonic innovation. This feature is especially useful in live performance settings or during sessions where recalling a particular sound setup is crucial.

In essence, the ability to rearrange these effects in a serial order using the Flow page provides a rich, flexible sound design tool for various audio sources like drums, synths, or guitars, enabling users to curate their own unique sonic landscapes.

Analog Distortion Effects

The Analog Heat +FX includes eight fully analog stereo distortion circuits that add warmth, depth, and character to any audio source, offering a range from a subtle clean boost to complete signal annihilation. These circuits uniquely process sound, allowing users to modify the sonic properties of their audio in a multitude of ways.

The first four effects circuits, including clean boost, saturation, enhance, and mid-drive, offer clean and non-destructive boosts to the signal. The clean boost provides a subtle lift to the sound, while the saturation introduces a warm, tape-style complexity to the signal peaks. Enhancement adds a tube-like glow to the signal, maintaining clarity and definition, and mid-drive offers a solid mid-range overdrive effect while preserving overall signal peaks.

Analog Heat +FX

The following four circuits, including rough crunch, classic distortion, round fuzz, and high gain, offer increasingly aggressive signal processing. Rough crunch introduces a gritty, expressive distortion by deforming signal peaks. Classic distortion affects upper- and mid-range frequencies for a more pronounced impact. Round fuzz adds warm, fuzzy distortion, adding complexity and charm to signal peaks. Finally, the high gain circuit offers the most aggressive boost with great sustain.

These circuits can drastically transform the sound of various audio sources, such as samplers, drum machines, synths, vocals, and drums. For example, applying the round fuzz circuit to a drum machine can introduce an appealing warm and fuzzy edge to the rhythm. Similarly, using the high gain circuit on a synth could lead to a powerful, sustained tone with significant impact. The presence of these circuits makes the Analog Heat +FX an effective and versatile tool for sound manipulation and experimentation.


  1. Clean Boost: This can be used on a vocal track to subtly enhance the volume without introducing distortion, allowing the vocals to stand out more prominently in the mix.

  2. Saturation: Applied to an electric guitar, the saturation can emulate the warm, rich tones of vintage analog recording, softening the sharpness of the signal peaks.

  3. Enhancement: Using this on a piano track could add a tube-like warmth and clarity, giving the piano a more vibrant, expressive sound.

  4. Mid-drive: By applying mid-drive to a bass guitar, you can inject a solid mid-range overdrive effect, adding more body and definition to the sound.

  5. Rough Crunch: When used on a drum machine, rough crunch can add a gritty character to the beats, making them more pronounced and textured.

  6. Classic Distortion: Classic distortion can be used on a synth line to add a potent, electrifying edge, particularly impacting upper and mid-range frequencies.

  7. Round Fuzz: If applied to a clean guitar signal, round fuzz can introduce a nostalgic, fuzzy distortion, giving a vintage psychedelic rock feel.

  8. High Gain: High gain can be used on a rock vocal to provide a heavily distorted, aggressive edge, suitable for genres like punk or metal.


One of the best use cases for Analog Heat +FX is using it to process audio from your computer via Overbridge. Overbridge, a free software suite, enhances the connectivity between Elektron instruments and computers. The advent of Overbridge 2 has facilitated even more effective integration of both analog and digital instruments with DAWs. With dedicated VST and AU plugins, devices are connected as though they are software instruments, and standalone plugins boast built-in multi-tracking capabilities. Multi-channel audio can be streamed directly through these plugins, and the Overbridge-enabled device can be used as a high-quality sound card. This setup allows for digital computer audio to be influenced by analog hardware processing and individual track streams from a device to be processed within your DAW. Thus, Overbridge essentially creates an ocean of possibilities for streaming and processing audio.

Elektron Overbridge

The Analog Heat +FX's Mod page offers an array of modulation options, providing users with a toolkit for shaping and animating the sound in various ways. These modulation options include an envelope follower/generator, and three Low-Frequency Oscillators (LFOs), each with multiple potential destinations.

Elektron Mod Matrix

The envelope follower detects amplitude variations in the incoming audio signal, producing a control signal that mirrors those variations. This control signal can modulate numerous parameters, such as the filter, drive, or bit reduction. For example, a sharp, percussive input like a snare drum hit can cause a dramatic sweep in the filter cutoff, adding a dynamic, evolving character to the sound.

Elektron Envelope

Tightly linked to the envelope follower is the envelope generator. Users can choose to use the envelope follower only to trigger the envelope generator, enabling more predictable, defined Attack/Decay or Attack/Release times. This feature might be used to provide consistent, rhythmic filter movement in sync with a rhythmic input source.

Further, the device has three multi-waveform LFOs, each with a wide speed range and their own individual settings and destinations. LFOs can be used to introduce cyclical modulation, making parameters wobble and weave in a coordinated or chaotic manner. For instance, an LFO could be assigned to the drive circuit to produce a pulsating, rhythmic distortion effect. 

In addition, Analog Heat +FX also provides an assignable CV or expression pedal input. This allows for external modulation sources to be integrated, expanding the unit's flexibility. For example, a foot-controlled expression pedal could be used to sweep the filter frequency, enabling hands-free dynamic sound manipulation during a live performance.

Analog Heat +FX Connection

With all of these useful features the Analog Heat +FX is a sound explorer's playground! With its broad assortment of distortion circuits and digital effects, it can coax everything from a gentle warmth to a fierce crunch out of any audio. Its dynamic modulation options, including envelope follower and LFOs, are like secret spices for your sonic recipes, adding a world of movement and excitement. Moreover, its seamless integration with your DAW via Overbridge and its dual role as a sound card make it a perfect partner in crime for your music-making adventures. All in all, the Analog Heat +FX opens up a universe of creative possibilities, taking your sound design game to a whole new level.