The Musitronics Mu-Tron Multi-Tron Vintage Silver is a dual state variable filter pedal with multiple routing and actuating options. Each of its two filters can be run as an envelope filter, a wah-wah pedal, or a random oscillating filter, which the maker describes as much like a sample-and-hold filter1. It is a first run, limited-edition release, listed at $499.00 USD and in stock at the maker's store as of October 20262.
What it does and how it works
For the sample-and-hold style effect, the Multi-Tron adds a modern element: a digital microprocessor controls the voltages sent to the LED to produce the random oscillating filter behavior1. The rest of the control scheme is familiar from the classic Mu-Tron design:
| Control | What it does |
|---|---|
| Gain | Controls the range of frequency manipulation1 |
| Peak | Can be used as resonance or damper control1 |
The original Mu-Tron III carried a Mode switch with low-pass, band-pass and high-pass filter settings3, a control scheme the Multi-Tron's dual-filter architecture builds out into a wider set of routing and actuating options.
Routing: stereo, dual out and series
The Multi-Tron's two filters can be configured three ways1:
- Stereo: both filters and both outputs on separate signal paths
- Mono in, dual out: one input feeding both filters for two parallel outputs
- Mono-series: the filters chained one into the other
With two 1/4" inputs and two 1/4" outputs on the enclosure, the pedal can sit at the center of a two-amp setup or run as a conventional single-filter box in series mode1.
Power and practical needs
The Multi-Tron operates on a standard 9V supply with a negative center tip and a 100mA power port, accepting 9V to 12V DC, and it draws 106mA1.
At 106mA, the Multi-Tron draws more current than many compact pedals, so it needs a power outlet with that headroom. It runs on a DC power port rather than a battery.
The pedal is made in the US and carries a one year limited warranty1. As a first run, limited-edition release, the maker notes the enclosures may have minor cosmetic blemishes1.
Where it came from
The Multi-Tron Vintage Silver is part of the current Musitronics Mu-Tron lineup, which has expanded since the brand's 2019 relaunch with new pedals including the Micro-Tron IV, Bi-Phase II, Boostron II and Octavider+.
Questions
Can the Mu-Tron Multi-Tron be used in stereo?
Yes. The maker states it can be used in stereo, mono in with dual out, or mono-series, and it carries two 1/4 inch input jacks and two 1/4 inch output jacks. Stereo operation runs the two filters on separate signal paths, while mono-series chains them one after the other.
What are the Multi-Tron's three routing modes?
The three modes are stereo, mono in with dual out, and mono-series. Stereo splits the signal across both filters and outputs, mono in with dual out feeds one input to both filters for two parallel outputs, and mono-series routes the filters one into the other in a chain.
What power supply does the Multi-Tron Vintage Silver need?
It runs on 9V to 12V DC from a standard 9V center-negative power port rated at 100mA, and it draws 106mA. That draw is above what a typical small pedal supply offers per outlet, so it needs a supply with adequate headroom and is not a battery pedal.
Does the Multi-Tron have a sample-and-hold effect?
Yes. Each filter can run as a random oscillating filter, which the maker describes as much like a sample-and-hold filter. To achieve this effect the Multi-Tron uses a digital microprocessor to control the voltages sent to the LED that drives the optical filter circuit.
Is the Multi-Tron Vintage Silver made in the USA?
Yes. The maker's product page states the Multi-Tron Vintage Silver is made in the US, and it carries a one year limited warranty from Musitronics Mu-Tron.
Is the Vintage Silver Multi-Tron a limited edition?
Yes. Musitronics describes these as first run, limited-edition units, and notes they may have minor cosmetic blemishes on the enclosures. The list price is $499.00 USD.
Sources (3)
- Multi-Tron Vintage Silver, Musitronics Mu-Tron (mu-tron.com)
- Octavider+ Black Limited Edition, Musitronics Mu-Tron
- How the Mu-Tron III became a vintage pedalboard icon, Guitar World, 2026-02-09
