Royal Blue Overdrive offers a wide range of tones from light overdrive into distortion and at lowest Distortion knob setting works as an EQ. It can also be used to create a valve amp-like crunchy "strike hard for distortion" effect. There is not much filtering on the overdrive, to provide a transparent tone that you can tailor with both the Treble and Bass controls.

Like the best boutique amps, the Royal Blue OD lets you determine the amount of breakup by how hard you strike the strings with your pick, and/or by adjusting the volume knob on your guitar.  The Royal Blue can add this level of expressiveness to any clean or slightly overdriven amplifier.

• VOLUME: Sets the overall output level of the pedal.
• DISTORTION: controls distortion, for most dynamic response set where the amount of distortion is controllable with picking force.
• TREBLE: A boost/cut "shelving" type equaliser that controls the amount of high-end, operating where the Presence control is on most amplifiers. Treble can be used to add shimmer to even bright amplifiers without interfering with a typical treble boost of most amplifiers.
• BASS: A boost/cut shelving type equaliser that controls the low end, just above resonance of a standard 4Ã12 cabinet. With both Bass and Treble turned up, you can get a scooped heavy tone; turn the knobs down for soft mid-boost tone.
• Power requirements: 6F22 9V battery or DC eliminator 2.1 mm plug centre negative and positive sleeve.
• Current consumption: 3.5mA at 9V DC
• Supply Voltage Range: 7.5-12VDC, 9V Recommended.
• Input impedance: 140K Ohm
• Output impedance: 25K Ohm
• True Bypass