The Mosky Multi Spring Reverb is a compact reverb pedal from Moskyaudio that emulates a spring reverb tank. The maker bills it as a "Vintage Voiced Reverb" and describes the circuit as an analog/digital spring reverb emulation, with a pre-delay range of 30ms to 150ms that covers everything from a quick rockabilly slapback to long, dark washes1. It runs on 9V DC, center negative, and is true bypass1.
Where it comes from
Moskyaudio's product page states plainly that the pedal is "Based on EarthQuaker Devices Ghost Echo V3 Vintage Voiced"1, and RockBoard's PedalPedia entry for the pedal repeats the same lineage2. The Ghost Echo V3 itself was described by Delicious Audio as "This creepy analog/digital spring reverb emulation machine"3, and that description carries over to the Mosky version, which borrows the same wording on its own page1. In other words, this is not a pedal with a physical spring tank inside: it is an electronic emulation of one, in the same vein as the pedal it is based on.
The controls
The pedal has four knobs and a toggle switch, laid out as follows12:
| Control | What it does |
|---|---|
| Dwell | Sets the length and thickness of the decay; at maximum it descends into an infinite loop of self-oscillation2 |
| Attack | Adjusts the pre-delay from 30ms at minimum to about 150ms at maximum; when the Dwell is set to self-oscillate, it changes the pitch of the oscillations1 |
| Depth | Sets the intensity of the reverb, in other words the wet/dry mix; unity is around noon and everything after is boosted12 |
| Mode selector | Four different reverb modulation modes, chosen with a knob1 |
| Toggle switch | "BOOSTE ADD THE GAIN"1 |
The Dwell control is the one that gives the pedal its character. Pushed high, the reverb never fully dies, and the pedal feeds back into itself. The Attack knob then interacts with that: with the Dwell self-oscillating, turning Attack changes the pitch of the oscillations rather than just the pre-delay1. At sane settings, Attack shapes how quickly the reverb blooms behind the dry note, from a tight slapback to a slower, more distant wash2.
"The Dwell control sets the length and thickness of the decay"
Power and connections
The pedal takes 9V DC, center negative, through a 2.1mm x 5.5mm barrel connector1, the standard supply format for compact pedals. Input impedance is 10 MΩ and output impedance is 1 kΩ1. The enclosure measures 11.5 x 6.5 x 5 cm and weighs 320g1, so it fits a typical compact pedalboard footprint.
Moskyaudio does not publish a current draw figure for this pedal. If you are planning a daisy chain with other pedals, leave headroom on your supply.
Videos
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Questions
Is the Moskyaudio Multi Spring Reverb true bypass?
Yes. Moskyaudio's product page lists the pedal as True Bypass, so when it is switched off the signal passes through without the reverb circuit in the path. That matters on a pedalboard where the pedal sits between other effects, since the dry tone stays untouched when the effect is off.
What power supply does the Moskyaudio Multi Spring Reverb need?
The pedal needs 9V DC, center negative, through a 2.1mm x 5.5mm barrel connector, which is the standard supply used by most compact pedals. Moskyaudio does not list a current draw figure, so use a supply rated for a typical small digital pedal and avoid unregulated or mismatched adapters.
Is the Moskyaudio Multi Spring Reverb based on the EarthQuaker Devices Ghost Echo?
Yes. Moskyaudio's own product page states the pedal is based on the EarthQuaker Devices Ghost Echo V3 Vintage Voiced reverb, and RockBoard's PedalPedia entry repeats the same claim. It is a spring reverb emulation in the same vein, offered at a lower price point.
What does the Dwell knob do on the Moskyaudio Multi Spring Reverb?
The Dwell control sets the length and thickness of the reverb decay. At its maximum setting the pedal descends into an infinite loop of self-oscillation, so you can push it for long, swelling reverbs or use the oscillation as a sound effect in its own right.
Is it a real spring reverb or an emulation?
It is an emulation. Moskyaudio describes it as an analog/digital spring reverb emulation rather than a pedal with a physical spring tank inside. The circuit is based on the EarthQuaker Devices Ghost Echo V3, which is likewise a spring reverb emulation rather than a true spring unit.
Sources (3)
- MULTI SPRING REVERB_M-SERIES_Products_mosky pedal, moskyaudio.com
- Multi Spring Reverb by Mosky, RockBoard PedalPedia, 2026
- EarthQuaker Devices Ghost Echo V3 Reverb, Delicious Audio, 2017-11-15
