The Bluetone Compura is a compressor pedal for guitar and bass, built on diode bridge technology. Compression evens out the difference between quiet and loud notes, and a diode bridge circuit is an older, analog way of achieving that gain reduction. Bluetone's product listing describes it simply: "The Bluetone Compura is a guitar and bass compressor pedal based on diode bridge technology."1
It belongs to the compressor family, one of the staple pedal types on any board. If you are weighing it against other dynamics tools, the Compressor Pedals page covers the type as a whole, and bass players can see where it sits among Bass Pedals.
Controls
The listing gives one control:
- Gain (pre-compression level): sets the level of the signal going into the compression stage, before compression takes place1
Power
The Compura runs on a 9V DC supply with center negative polarity and draws 80mA1. That current draw is higher than many compact pedals, so a standard daisy chain shared with several other pedals may not be the best home for it; a supply with enough current on tap is the safer choice.
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Questions
Is the Bluetone Compura analog?
Yes. Bluetone's product listing describes the Compura as an analog circuit. It is a compressor pedal for guitar and bass built on diode bridge technology, rather than a digital design.
What power supply does the Bluetone Compura need?
The Compura runs on a 9V DC supply with center negative polarity and draws 80mA. Use a supply rated for that current, and note that the pedal has no battery option mentioned in its specifications.
Can the Bluetone Compura be used on bass?
Yes. Bluetone describes the Compura as a guitar and bass compressor pedal, so it is intended to sit on either kind of board. Its diode bridge compression circuit is designed to work with both instruments.
What does the pre-compression level control do?
The Compura's Gain control sets the pre-compression level, meaning the amount of signal fed into the compression stage before it is compressed. Raising it pushes more level into that stage.
Sources (1)
- Compura by Bluetone, RockBoard PedalPedia, 2026