Our Business Hours is Mon to Fri / 11:00 to 18:00 JPN time
We will close Sat and Sun, so we will reply to inquiry that received weekend on next week.
Your understanding will be appreciated.

We are receiving the customer order with first comes first serves basis both on website and at real shop.
So occasionally it will be sold out while having email communication.
Please understand in advance.

Japanese consumption tax is not required for international shopping. However you may be required to pay duty, tax and import fee when receiving your items in your country. You must pay all these duty, tax and fee as receiver/importer and we do not cover any of them.

■Please note
The product description is an automatic translation of the Japanese description. Please contact us if you have any questions.

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[WEB Exclusive Inventory Clearance Sale]
Please note that clearance items may include store display models, slightly damaged items, or items with damaged packaging.

FACTORY PEDAL Series – Maintaining the same pedal quality while achieving faster production speeds and lower product prices.

The Royal Blue Overdrive (RBO) is an overdrive pedal with a wide range of tones, from light overdrive to distortion, and can also be used as a booster with an EQ when the distortion knob is set to minimum.

It can also produce a hard-attack crunch sound reminiscent of a tube amp. By minimizing filtering, it achieves a transparent overdrive tone, and the tone can be further adjusted with both the Treble and Bass controls.
Like a top-of-the-line boutique amplifier, the RBO allows you to freely control the amount of distortion by adjusting the guitar's volume knob and the strength of your picking. The RBO makes it possible to add incredible expressiveness to clean to slightly overdriven amplifier sounds.

【SPECIFICATIONS】
■CONTROLS
VOLUME: Adjusts the overall output level.
DISTORTION: Controls a dynamic distortion response that is sensitive to the strength of your picking.
TREBLE: This is a shelving-type equalizer that boosts/cuts the high end in the same frequency range as the amplifier's presence control. It can add sparkle to bright-toned amplifiers without interfering with the amplifier's treble boost.
BASS: This shelving-type equalizer boosts/cuts the low end in the frequency range just above the resonance produced by a standard 4x12 cabinet. Increasing both the Bass and Treble knobs will produce a heavy sound with scooped mids. Lowering the knob settings will result in a softer mid-boost sound.

■SETTINGS
For Midboost: Set the Treble and Bass controls all the way counterclockwise.
For Midcut: Set the Treble and Bass controls all the way clockwise.

■ELECTRICAL SPECIFICATIONS
Current draw: 3.5mA at 9V DC
Input impedance: 140k Ohm
Output impedance: 25k Ohm
Voltage range: 7.5-12V
POWER REQUIREMENTS: 006P/6F22 9V battery or power supply (center negative / 2.1 mm plug)

----------------------------- About MAD PROFESSOR -----------------------------
Mad Professor Amplification is a guitar effects pedal and amplifier brand founded in Finland in 2002. It is the largest effects pedal brand in the Finnish market, and its high-quality effects pedals are used by guitarists worldwide. It is a unique brand that impresses even the most avid effects pedal enthusiasts and professional musicians. Our belief lies in tone, sound, and music itself.

[※Caution]
Because everything from assembly to painting is done by hand, there may be some cracks or unevenness in the paintwork. Please understand this in advance.