Keeley releases RK2000 Funk Siren Delay pedal
October 21, 2026 · 2 sources
Keeley Electronics has released the RK2000 Funk Siren Delay, a digital pedal built around the sound of the early-1980s Ibanez/Maxon DM2000 rack delay, at a US list price of $36912. Delicious Audio reported the release on October 21, 20262.
The pedal reproduces the DM2000's 12-bit conversion and its analog compander circuits, according to Delicious Audio, which describes the result as "a memory degrading in real-time"2. RockBoard's PedalPedia lists the circuit type as digital, with 9V DC center-negative power and 150mA current draw1. RockBoard's listing gives the pedal's width, depth, height and weight as 000.00 mm, so no enclosure dimensions are available from it1.
Delicious Audio lists the controls as follows2:
| Control | Function |
|---|---|
| Filter | Sweeps from high-pass to low-pass in the feedback loop; left cuts bass, right cuts treble, noon is neutral |
| Depth | Sets modulation intensity, from subtle warble to "tape reel stop" pitch dives |
| Rate | Sets LFO speed from 0.1 Hz, a 44-second sweep, up to 8 Hz |
| Input | Sets how hard the signal hits the delay circuit, allowing overdriven repeats |
| Hold (right footswitch) | Freezes the delay buffer for infinite sustain; press and hold to clear the loop |
| Mod (right pushbutton) | Engages the pitch modulation |
The $369 price includes five onboard presets, full MIDI, expression control over any parameter and true stereo ping-pong, according to Delicious Audio2. RockBoard's listing also cites full MIDI integration, storable presets, expression pedal support, remote-controlled modulation parameters and pitch-shifting ping-pong delays1.
Delicious Audio traces the pedal to Trey Anastasio's use of the DM2000's Hold function for the warbling loops known as the "Funk Siren," and reports that Anastasio's guitar tech, Justin Stabler, asked Keeley to address failing vintage units2. RockBoard's description credits the sound to Anastasio "among others" and calls the pedal a tribute to early-1980s studio technology1.
"It replicates the DM2000's quirky architecture, specifically the 12-bit conversion and the unique analog compander circuits that gave the original its strange, grainy texture."
RockBoard lists the RK2000 in the Plasmeatic Purple finish as available in its shop1.
Sources (2)
- RK2000 Funk Siren Delay (Plasmeatic Purple) by Keeley Electronics | RockBoard | PedalPedia, rockboard.de
- Keeley RK2000 Funk Siren Delay | Delicious Audio, delicious-audio.com