The Maxon OD-9 Pro Plus offers a switchable Boost feature that bumps the midrange by +3dB, and the overdrive level by +10dB, creating a thicker, slightly compressed overdrive tone. Bright, Singing sustained notes and improved harmonic response are further benefits of this new feature. If you always felt that the OD-9 was a bit anemic, the Pro+ Boost Mode is just what the doctor ordered. The Pro Plus also features the addition of a stabilized DC-DC voltage converter in the power circuit of the Pro+. This voltage converter bumps 9 volts up to 18 volts, offering a much wider dynamic range and increased head room. Operating voltage is switchable between 9 and 18 volts, offering a choice between the classic OD-9 pedal tone and this newer, full-frequency tone. The Maxon OD-9 Pro Plus Pedal fe.
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