The JAM Pedals "Relic" Dyna-ssoR is an analog compressor pedal from Greek maker JAM Pedals. It is a hand-painted, limited artwork version of the standard Dyna-ssoR: JAM describes the circuit as a musical NOS CA3080 compressor that combines the spirit of classic Ross and Dyna Comp circuits in a simple two-knob design. According to the maker, it delivers vintage punch, satisfying squash and long sustain without flattening the life out of your tone, and stays transparent, warm and easy to dial in1.
The controls
The Dyna-ssoR keeps things to two knobs, in the tradition of the Ross and Dyna Comp compressors it draws on1.
| Control | What it does |
|---|---|
| Sustain | Sets compression and sustain1 |
| Level | Sets output; matches the output or pushes the next stage1 |
With only Sustain and Level to set, the pedal is quick to dial in: Sustain decides how hard the circuit squashes and how long notes hang on, while Level brings the compressed signal back up to match your clean tone or pushes whatever comes after it on the board1.
The Relic artwork
The "Relic" version is one of several custom artwork takes on the Dyna-ssoR circuit, alongside versions such as the "Lunar Trails" Dyna-ssoR and the "Achenbach" Dyna-ssoR. JAM Pedals describes these as custom artwork versions with the same sound and different artwork2.
Every limited artwork pedal is a one-of-a-kind hand-painted piece, and JAM Pedals states that the pedal received will differ in detail from the photos shown1.
Power and practicalities
The pedal runs on a 9V battery or 9V DC, center-negative, and draws 5 mA1. That low draw means it fits easily on a shared supply with other pedals. JAM Pedals also offers a money-back guarantee: a refund within 30 days of receiving the product if you are not satisfied, no questions asked1.
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Questions
Does the JAM Dyna-ssoR take a battery?
Yes. JAM Pedals lists the Dyna-ssoR as running on a 9V battery or 9V DC, centre-negative power. Current draw is low at 5 mA, so it sits comfortably on a shared pedalboard supply, and a battery is a workable option if you prefer to run without a adapter.
Is the JAM Dyna-ssoR true bypass?
Yes. JAM Pedals specifies true bypass, so when the pedal is off your guitar's signal passes to the amp without passing through the compression circuit.
What polarity does the Dyna-ssoR use?
Centre-negative. JAM Pedals lists the power requirement as 9V DC, centre-negative, which is the same polarity as most standard pedal power supplies and daisy chains.
What chip does the JAM Dyna-ssoR use?
The Dyna-ssoR is built around a NOS (new old stock) CA3080 chip. JAM Pedals describes it as a musical NOS CA3080 compressor, and the chip is part of how the pedal gets its vintage-flavoured compression and sustain.
Is every Relic Dyna-ssoR painted the same?
No. Each limited artwork pedal is a one-of-a-kind hand-painted piece, and JAM Pedals notes that the pedal you receive will differ in detail from the photos shown. The circuit and sound are the same as the standard Dyna-ssoR; only the artwork differs.
How much does the JAM Relic Dyna-ssoR weigh?
JAM Pedals lists the weight as 230 g, or 0.5 lb, with dimensions of 11.1 x 7 x 4.8 cm (4.3 x 2.7 x 1.8 in) including jacks and controls.
Sources (2)
- “Relic” Dyna-ssoR, JAM Pedals (jampedals.com)
- “Lunar Trails” Dyna-ssoR, JAM Pedals (jampedals.com)









