The Behringer UD300 Ultra Distortion is an analog distortion pedal built around a simple idea: two distortion pedals in one box. RockBoard's PedalPedia describes it as covering everything from blues-rock rhythms to searing leads, with a dual-mode switch that picks between the two characters1.
Controls and modes
The front panel is deliberately simple. There are three dials, Level, Tone and Distortion, and Behringer's pitch is that you just twist them to create a new flavor of distortion. The dual-mode switch is the other half of the design: one position gives warm distortion aimed at riff rock, the other gives screaming distortion for lead sounds1.
| Control | What it does |
|---|---|
| Level | Sets the output level of the distortion |
| Tone | Shapes the tonal character |
| Distortion | Sets the amount of distortion |
| Mode switch | Chooses between warm distortion (riff rock) and screaming distortion (leads) |
A status LED shows when the pedal is activated, and RockBoard's PedalPedia says the on-off switch maintains excellent signal integrity in bypass mode1.
Power and battery
The UD300 runs on 9V DC, center negative, drawing 30mA. RockBoard's PedalPedia states that you can power it with either a 9V battery or the optional PSU-SB DC power supply, which is not included in the box1.
No power supply comes with the pedal. If you want to run it on a pedalboard, Behringer's PSU-SB is the matching adapter, sold separately1.
Where it sits in Behringer's range
The UD300 is one of several distortion and overdrive pedals in Behringer's lineup. Players comparing it with related boxes may also come across the Behringer HD300, the Behringer HM300, the Behringer OD300 and the Behringer Ultra Metal, each covering a different point between overdrive and heavy distortion1.
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Questions
Does the Behringer UD300 run on a battery?
Yes. Behringer says you can power the UD300 with either a 9V battery or the optional PSU-SB DC power supply, which is not included with the pedal. A battery makes it easy to try the pedal without buying anything else, while the power supply suits players who leave the pedal on a board.
Is the Behringer UD300 analog or digital?
The UD300 is an analog pedal. Its circuit type is listed as analog, meaning the distortion is produced by analog circuitry rather than digital modeling. That places it alongside other straightforward distortion pedals rather than multi-effects units.
What does the mode switch on the UD300 do?
The UD300 has a flexible dual-mode switch that lets you choose between warm distortion, described as suited to riff rock, and screaming distortion for lead sounds. Behringer describes the pedal as two distortion pedals in one, covering everything from blues-rock rhythms to searing leads.
Does the UD300 come with a power supply?
No. The pedal can be powered with a 9V battery or Behringer's optional PSU-SB DC power supply, and the power supply is not included. If you plan to run the UD300 on a pedalboard with other pedals, you would need to supply your own 9V DC adapter.
What polarity does the UD300 use?
The UD300 uses 9V DC with center negative polarity, the same convention as most modern pedals, so a standard center-negative supply or daisy chain works with it. It draws 30mA of current.
Sources (1)
- UD300 Ultra Distortion by Behringer, RockBoard (rockboard.de PedalPedia), 2026
