EarthQuaker Devices Towers Stereo Reverberant Filter

The EarthQuaker Devices Towers Stereo Reverberant Filter is a reverb pedal in stompbox form, released by EarthQuaker Devices in March 2026¹. It combines ambience with sweeping filters: your input signal is fed into an array of infinitely repeating micro-echoes, creating dynamic generative impulses that feed a cathedral-style reverb, interwoven with a resonant low-pass filter that intersects the delay and reverb pathways at multiple points². The result is a reverb whose reflections are shaped and colored by a filter you can control manually, with an envelope follower, or with an LFO.

EarthQuaker Devices describes it as carrying the DNA of the Afterneath, the Transmisser and the Astral Destiny, while being a completely new circuit with its own reverb algorithm³. Jamie Stillman, founder of EarthQuaker Devices and the architect of the Towers, wanted it because he loves having resonant filters in his setup⁴.

What it does and how it works

The signal path is unusual even among ambient reverb pedals. Rather than a straightforward reverb block, the input feeds an array of infinitely repeating micro-echoes that create dynamic generative impulses, and those impulses then feed a cathedral-style reverb. A resonant low-pass filter sits alongside this, intersecting both the delay and reverb pathways at multiple points². That interweaving of filter, echo and reverb is what separates the Towers from a conventional reverb pedal: the filter is not an afterthought at the end of the chain but part of how the reverb is generated.

EarthQuaker Devices says the Towers adds dynamic, modulated characteristics into the reflections that are absent from the Afterneath's tails, describing a highly responsive rather than static resonance³. It uses a completely different reverb algorithm than the Afterneath and the Transmisser³.

The pedal runs true stereo, mono-to-stereo, and mono-to-mono signal flow³, so it fits a mono board today and a stereo rig later. It includes the ability to save and store user presets, with eight onboard presets²³.

The controls and footswitches

The Towers carries a set of knobs and switches that map onto its three operating modes. The Mode control is a 3-position toggle switch that changes the mode of operation⁴, selecting between the three distinct resonant filter modes³.

The three modes work differently⁴¹:

• Manual: The filter frequency is changed by adjusting the Frequency control. This works across the stereo field, with the left channel moving opposite the right⁴.
• Envelope: The filter frequency is adjusted by an envelope controlled by your picking dynamics. In this mode the Frequency control adjusts the sensitivity of the envelope⁴.
• LFO: The third position, reported by MusicRadar at launch, cycles the filter automatically¹.

The Stretch footswitch is the pedal's most distinctive performance control. MusicRadar describes it as one that "slows everything down, doubling the length of the reverb, playing around with the spectrum"¹. Premier Guitar's launch coverage, drawing on the maker's own description, puts it in more detail: Stretch slows down the entire digital system of the Towers, so the reverb length is doubled, the spectrum of frequencies is altered, and a pitch-bending effect runs through the morphing process⁴. Hold it and the whole soundscape drops and stretches; release it and everything returns.

The pedal also has an expression pedal option, though EarthQuaker Devices notes it works for very different functions than the Afterneath's expression control³. Players already using an expression pedal for another effect will need to check what the Towers assigns to it.

Where it came from

The Towers was released in March 2026¹⁵. It emerged from a lineage of EarthQuaker Devices ambient pedals: the maker says it carries the DNA of the Afterneath, the Transmisser and the Astral Destiny, but stresses that it is a completely new circuit, not a stereo Afterneath or Transmisser redux³. Where the Afterneath sends your signal into a cave of scattered echoes, the Towers generates its reverb from micro-echoes and shapes it with a resonant filter running through the whole path²³.

EarthQuaker Devices' own comparison article calls it "arguably the most EarthQuakery pedal we've put out in years"³. The Transmisser, one of its ancestors, is no longer in production, while the Towers is in regular production³.

Price and buying

The USA MAP price at launch was $299⁴, and MusicRadar reported the same figure for the US market alongside a UK price of £329¹. Gearnews listed it at Thomann for $388 / £349 / €399⁵, a higher street price than the maker's stated MAP. The pedal carries a Limited Lifetime Warranty⁴ and is built by EarthQuaker Devices in Akron, Ohio, on the banks of the Ohio and Erie Canal⁴.

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