Mutable Instruments Marbles
Mutable Instruments Marbles Used Price Guide
Avg. used price: ~£245(based on recent Reverb sales)·What are these selling for? →
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Mutable Instruments Marbles used prices at a glance
The Mutable Instruments Marbles typically sells for between £243 and £248 on the used market, with an average price of £245 based on recent Reverb sold listings. The Mutable Instruments Marbles is a budget-friendly option and is frequently traded on the used market. Prices have been stable over the last 30 days.
- Average used prices
- Latest sold listings
- Price trends over time
- Factors that affect resale value
If you're buying or selling a Mutable Instruments Marbles, this gives you a realistic view of what it actually sells for today.
Low
£243
Average
£245
High
£248
- Average Used Price
- £245
- Typical Range
- £243 – £248
- Last Sold Price
- £245
- Trend
- stable
- Most Recent Sale
- 2 days ago
Is the Mutable Instruments Marbles holding its value?
Used Mutable Instruments Marbles prices have been stable over the last 30 days, hovering around £245. That points to steady demand without dramatic supply changes — the kind of pattern that tends to hold over multiple quarters. Boxed, mint units still sell at the top of the range; rougher examples can sit £30-£60 below the average.
Units in better condition or with original packaging tend to sell at the higher end of the range, while heavily used examples sell for less.
Demand for the Mutable Instruments Marbles remains strong among synth enthusiasts and producers, which helps support its resale value.
Mutable Instruments Marbles is a random sampler — a source of controlled randomness for gates and voltages. Unlike pure noise, Marbles lets you dial in probability, repetition, scale quantization, and correlation, producing randomness that remains musical.
Two Sides of Randomness
The module divides into two independent sections. The t section generates random gates and rhythms from three outputs: t1 and t3 provide complementary gate patterns while t2 outputs the main clock or its random variations. Bias controls the probability of gates firing, Jitter adds timing variation from tight quantized rhythms to drunken swing, and the rate knob sets master tempo (or follows an external clock).
Melodic Randomness
The X section generates three random voltages: two smoothly varying and one stepped. Spread controls the voltage range from narrow intervals to wide leaps. Steps determines whether new random values are generated or previous ones are recycled — at full CW, it locks into a repeating sequence. The Scale buttons quantize output to musical intervals, with six built-in scales plus the ability to program custom scales from a keyboard or sequencer.
Déjà Vu
The central Déjà Vu control is Marbles' defining feature. It acts as a probabilistic loop — turning it up increases the chance of recycling previous random decisions rather than generating new ones. At noon, patterns half-repeat with variations. Fully clockwise, sequences lock into perfect loops. This single control transforms pure randomness into structured generative music that feels composed rather than chaotic.
Who Is This For?
Marbles suits modular users who want musical randomness:
- Generative composers building self-playing patches that evolve over time
- Live performers adding controlled variation without losing musical coherence
- Sound designers creating evolving modulation and melodic textures
- Mutable Instruments collectors seeking discontinued modules
- Modular beginners wanting an immediately inspiring random source
For pure random, simpler noise modules work. For randomness that feels musical and controllable, Marbles is the benchmark.
Videos
Frequently Asked Questions
Specifications
| Format | Eurorack module |
| Width | 18HP |
| Depth | 25mm |
| Current | +12V 80mA, -12V 20mA |
| Clock Outputs | t1, t2, t3 |
| CV Outputs | X1, X2, X3, Y |
| Modes | Multiple randomness/scale modes |
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Specs and prices are for reference only and may be outdated or contain errors. See full disclaimer. Affiliate links may earn commission.