TRIUMVIRATE

MULTIBAND DISTORTION

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SCHEMATIC (PDF)

This pedal is discontinued. Please check our dealers or our Reverb store for any remaining stock.

Schematic created by BuggFX

The TRIUMVIRATE is a unique take on a distortion pedal. The guitar signal is first separated into three pathways (lows, mids, and highs) where the range of each is set via internal trimpots. Next, each pathway goes through its own distortion engine, with full control over the amount of gain in each band. Finally, each band is independently mixed together at the end. In short, the Triumvirate is a multi-band distortion, which works great for guitar, bass, synths, even cellos!

Click the different parts of the pedal to learn more.

Demos

How It Works

Features

Tech Specs

Story

Older

Versions

TRIUMVIRATE BLOCK DIAGRAM

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FEATURES & CONSTRUCTION

TrueSoft  Bypass

Low Noise Op Amps

Extended Headroom

DualMode Switching

We combine durable true bypass relay switching with an effect-side FET switch for pure and smooth switching.

Two modern, high-speed op amps were chosen for their low-noise and high-fidelity properties.

A simple voltage inverter circuit was used to effectively turn 9V into 18V. More voltage means more headroom & bigger tone.

DualMode Switching can convert the footswitch into momentary operation.

To use, wait 5 seconds, then press the sequence tap+tap+hold until LED flashes.

USA Made PCBs

Our circuit boards are made in the USA by Advanced Circuits (large PCB runs) or OSH Park (small PCB runs).

PRP Audio Resistors

We used low noise, low inductance resistors made for audio circuits by Precision Resistive Products in the USA.

All VFE Pedals are built with these quality components and features:

 

- Rugged diecast aluminum enclosures

- TrueSoft + DualMode true bypass switching

- Industrial-grade Carling switches & Neutrik audio jacks

- Alpha pots soldered directly to PCB

- 5% WIMA film capacitors & 1% metal film resistors

- Cardas Audio ultra-pure, eutectic silver solder

- P3 system phantom-power compatible

- Built by hand in Puyallup, WA, USA

- 1 year warranty on parts & labor

DIMENSIONS:

Enclosure dimensions: 2.37"W x 4.37"L x 1.16"H  (60 x 111 x 29mm)

With knobs & jacks: 2.6"W x 4.4"L x 2.1"H  (66 x 111 x 53mm)

 

POWER:

Standard 2.1mm, negative-tip 9V to 15V power supply or 9V battery.

 

INPUT IMPEDANCE:

991K-ohm

 

CURRENT DRAW:

~40ma continous

+30ma surge for 4ms during on/off switching

BY THE NUMBERS:

15 RESISTORS

20 CAPACITORS
1 INDUCTOR

4 TRANSISTORS

11 DIODES

2 OP AMPS

2 INTEGRATED CIRCUITS
17 POTENTIOMETERS
2 SWITCHES

3 JACKS
2 CIRCUIT BOARDS

HOW THE TRIUMVIRATE CAME TO BE

THE STORY

My brother and I both came up with an idea for a multiband distortoin box at the same time. When he shared his idea with me, I said "I was just thinking about doing that!". The original concept was so outlandish that is seemed nearly impossible, so we started by condensing the idea into a compact footprint. To this day, I am still discovering original tones with the pedal that I couldn't create any other way.

 

While the Triumvirate can dial up those "bread and butter" overdrive and distortion tones, it really shines as a tool for creating new tones. Those who have experimented with it have unearthed new possibilities, especially when experimenting on full-range instruments.

-- Peter Rutter, founder of VFE Pedals --

Here is the list of versions of the Triumvirate circuit:

 

#1 - The very earliest builds had the same core structure as the other Triumvirate pedals, but without any treble filter after the mix stage. The result was a grittier, edgier distortion tone.

 

#2 - The original had fixed crossover frequencies at 270Hz & 1.8kHz. The bass band used true mosfet clipping, the mid band LED clipping, and the treble band uses a single set of 1N4001 silicon clipping diodes. There were two revisions of the original that only changed the internal trimpots. The first revision had a pre-gain trimpot, and the second revision had a post-gain treble cut trimpot.

 

Here is what is new in the current version:

- Variable crossover network via 8 internal trimpots

- Treble band uses a dual pair of silicon diodes for better dynamics and more output volume

- Has both a pre-gain trimpot and post-gain treble cut trimpot

- American-made, audio-grade resistors

- Dual-Mode switching