Maxon OD-9 Pro+ Overdrive Pedal

Item # EFFOD9PLUS
| Mfg # OD9PROPLUS
| UPC # 840433000327
Our Price: $206.25
Retail: $275.00 | You Save: 25%
ONLY 2 IN STOCK
*****5 / 5 (based on 1 Reviews)
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Let's face it: When it comes to overdrive, no one knows more than Maxon. Back in 1974 they invented the original "808" circuit, the staple overdrive design that has shown up in the rigs the world's greatest guitarists and has been copied, modified, and "upgraded" ad nauseum. Most boutique OD's are based on the 808 circuit, and there are more than a few self-proclaimed "fx-perts" out there who make their living developing mods for this legendary device and its successor, the OD-9.

It's with great pride that Maxon introduces the OD-9 Pro+ Overdrive. At long last, an overdrive unit that meets and exceeds the demands of the market and deservedly takes its place beside the legendary 808. While developing the OD-9 Pro+, Maxon enlisted the help of several professional guitarists, including Scott Henderson, Lyle Workman (Sting), Borislav Mitic, Chris Traynor (Helmet, Bush), Phil Caivanno (Monster Magnet, Jackalope), and Joel Stroezel and Adam Dutkeiwicz (Killswitch Engage). All avid OD808 or OD-9 users, this "advisory board" offered us further insight into what features would be most useful in creating a new classic overdrive pedal.

Starting with the basic OD-9 circuit, Maxon improved the dynamic range of the OD-9 Pro+ by replacing the output stage transistor with a low-noise NEC uPC4570 OP-Amp. This substitution allows for less compression than the OD-9, providing a more balanced response from low to high ranges without emphasizing the mids like the OD-9 does. Output level is also +6dB higher than the OD9, so that the Pro+ effectively sounds twice as loud to your ears. In addition, this component change also offers a true undistorted signal when the Drive control is set at zero, allowing the Pro+ to be used as a clean booster as well as an overdrive.

New to the OD-9 Pro+ is the addition of a switchable Boost feature. Here's where the real fun begins ? In Boost mode the midrange is goosed by +3dB, while high and low frequencies are reduced slightly. With 2 series distortion circuits, the overdrive level in Boost mode is also increased by +10dB, creating a thicker, more saturated overdrive tone. An NEC uPC4570 OP-Amp is used in the second distortion circuit, assuring low-noise operation. This new Boost mode provides a more compressed sound than Normal mode, and is perfect for searing lead passages that really jump out of the mix. 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 biggest improvement to the OD-9 circuit comes with the addition of a stabilized DC-DC voltage converter in the power circuit of the Pro+. This voltage converter bumps 9 volts (plus and minus 4.5 volts) up to 18 volts (plus and minus 9 volts). A much wider dynamic range and increased head room are the benefits of this feature, allowing a fuller frequency response and the ability for the pedal to handle today's ultra high-gain pickups and active electronics. Best yet, the operating voltage is switchable between 9 and 18 via an internal DIP switch that is accessible through the unit's battery compartment, offering a choice between the classic OD-9 tone and this newer, full-frequency tone.

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Product Reviews
  • *****
  • OD-9+
  • February 23, 2012
  • By: effectsguy

This pedal is much like the OD-9, but with an added boost switch. When engaged you get a much more angry version of a tube screamer. You get a stronger attack and a touch more compression. Everything stays very tight and percussive. This pedal is perfect for anyone who needs just a bit more out of an overdrive.

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All instruments in our catalogs and on our shopping site carry the manufacturers' warranties against defects in parts and workmanship. Should a defect occur within the manufacturer's warranty period, contact us immediately.

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All warranties, stated or implied are held with the product manufacturer and they vary from item to item. Consult the documentation that came with your product for details in addition to the information below.
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