Keeley RK2000 Funk Siren Delay Ships at $369, Reviving the Ibanez DM2000 Trey Anastasio Has Used for Decades

Keeley shipped the RK2000 Funk Siren Delay on April 20. The pedal has been in circulation as a tease for several weeks — first appearing in context as a Trey Anastasio–associated delay, which is enough to make a certain kind of guitarist drop everything and look up the spec sheet.

The $369 price lands it in the same range as a TC Electronic Flashback X4 or a Boss DD-500, but the RK2000 is building toward a more specific sound than either of those. This is a dedicated interpretation of the Ibanez DM2000 — a rackmount delay from the early 1980s that Anastasio has carried through most of his career.

What the Ibanez DM2000 Actually Is

The DM2000 matters here because of what it does to a delay signal, not just because of who uses it. It is a BBD-adjacent rackmount that produces delays with an organic, slightly warm character — the repeats don't disappear cleanly the way a crystal-clear digital delay would. They decay with a presence that feels like the room is participating. It is a different thing than a pristine delay, and it requires a different kind of listening.

Anastasio's tone has relied on that character for most of Phish's history. The repeats breathe. They interact with his phrasing in ways that make his improvisations feel conversational rather than processed.

What Keeley is selling with the RK2000 is access to that character without sourcing a working rack unit and building a power solution around it.

Feature Set

The core: up to 44 seconds of delay, ping-pong routing, pitch-shifted repeats, and an LFO that can modulate the delay signal for chorused or vibrato-inflected trails. Presets with full MIDI implementation mean this can slot into a switching rig without manual knob changes per song. An expression input adds real-time control over delay time, mix, or modulation depth — any of the parameters that normally require reaching down in the middle of a take.

The pitch-shifting on the repeats is the detail worth lingering on. Pitch-shifted delay — where each repeat transposes slightly up or down — is how you build that descending (or ascending) spiral effect that creates a sense of depth behind a phrase. It is not subtle, and it is not meant to be invisible. At lower mix settings it adds a shimmer that sits behind the dry signal; at higher settings it becomes the texture itself.

Who This Is For

This is a $369 delay for players who have a specific tone problem. It is not a utility delay. If you want a transparent delay that tracks your input cleanly and disappears, there are better options at half the price.

If you want the kind of delay where the repeats are doing something — adding warmth, shifting pitch, building a texture that changes the harmonic color of what you played — the RK2000 is engineered for that.

That is a narrower audience, but it is also an audience that will use this pedal for a long time. These are not pedalboard auditioners. They are players who know the DM2000, or who know Anastasio's tone well enough to understand what they are buying.

At $369 with presets and MIDI, the price is reasonable for what Keeley is delivering.

Dig Deeper on Fader & Knob

• The Strymon Fairfax is the other boutique builder story from early 2026 — their first all-analog pedal, shipped February.
• Our delay block guide for modelers breaks down how to approximate analog delay character inside an HX Stomp or Quad Cortex if you're not ready for another pedal on the board.
• Browse the delay tone recipes for preset frameworks that use pitch-shifted and modulated delay tones from the songs you know.