The Pigtronix Cosmosis 1 is a compact ambient reverb pedal that takes the sounds of the company's larger Cosmosis and puts them in a single-footswitch enclosure. It carries the same three reverbs, Theater, Temple, and Cosmos, and keeps the original's Morph feature, at a list price of $1491. Pigtronix describes the pedal as conjuring "enormous spectrums, ghostly reverse effects, and heavenly reverbs"1.
What it does
The Cosmosis 1 is built around three reverb modes aimed at ambient playing: Theater, Temple, and Cosmos1. Pigtronix's own description of the pedal's range, "enormous spectrums, ghostly reverse effects, and heavenly reverbs", points to the kind of spacious, atmospheric material it is meant for1. For a player comparing it with other options in the category, it sits among reverb pedals designed for washes and textures rather than short room sounds.
Controls and the Morph feature
The compact format trims the original down: as Guitar World reported, "Two footswitches and four dials have become one and three"1. Three knobs set the parameters, and the single footswitch does more than turn the pedal on and off.
- Three knobs control the pedal's parameters, with the Tone knob working through a high/low pass filter to brighten or darken the effect1
- Morph causes the three knob-controlled parameters to oscillate between different states pre-dialled with the knobs1
- Morph is unlocked by pushing and holding down the footswitch, so the movement happens hands-free while playing continues1
That Morph behavior is the pedal's distinguishing control idea: a player can dial in two settings and hold the switch to let the sound drift between them1.
Cosmosis 1 versus the Cosmosis
The Cosmosis 1 is a repackaging of Pigtronix's Cosmosis ambient reverb pedal1. The differences come down to size and control layout:
| Cosmosis 1 | Cosmosis | |
|---|---|---|
| Footswitches | one1 | two1 |
| Knobs | three1 | four1 |
| Format | single-footswitch compact pedal1 | larger pedal1 |
| Reverbs | Theater, Temple, Cosmos1 | same three reverbs1 |
| Jacks | top-mounted1 | top-mounted1 |
The sounds carry over unchanged; what a player gives up is the second footswitch and fourth dial of the full-size Cosmosis, and what they gain is a smaller footprint and a lower price1.
Connections and bypass
The input and output jacks are top-mounted, which keeps cables from sticking out sideways on a pedalboard1. The output is stereo-operable via a TRS output terminal, so a single jack can feed a stereo rig1. The switching is buffered bypass rather than true bypass1, worth knowing for players who build boards around entirely true-bypass signal paths.
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Questions
Is the Pigtronix Cosmosis 1 stereo?
Yes. Guitar World reports that the Cosmosis 1 is stereo-operable via a TRS output terminal, so a single output jack can carry a stereo signal to a stereo input or a splitter. The input and output jacks are top-mounted, which helps with fitting the pedal onto a crowded board.
Is the Cosmosis 1 true bypass?
No. According to Guitar World, the Cosmosis 1 features buffered bypass switching rather than true bypass. A buffer keeps the signal path consistent over long cable runs, which some players prefer, though purists who want the pedal entirely out of the circuit when off may notice the difference.
What does the Morph feature do on the Cosmosis 1?
Morph causes the three parameters controlled by the onboard knobs to oscillate between different states pre-dialled with the knobs. It is unlocked by pushing and holding down the footswitch, so a player can set up two sounds and let the pedal move between them hands-free.
How much does the Pigtronix Cosmosis 1 cost?
The Cosmosis 1 carries a list price of $149, as reported by Guitar World on 27 January 2025.
What is the difference between the Cosmosis and the Cosmosis 1?
The Cosmosis 1 repackages the sounds of the larger Cosmosis ambient reverb pedal into a single-footswitch compact pedal. As Guitar World put it, two footswitches and four dials have become one and three, while the input and output jacks remain top-mounted and the same three reverbs stay on offer.
What does the Tone knob do on the Cosmosis 1?
The Tone knob works through a high/low pass filter that lets the player brighten or darken the effect, shaping how much high or low content the reverb carries.
Sources (1)
- Pigtronix debuts simplified Cosmosis 1 ambient reverb pedal, Guitar World, 2025-01-27





