Maxon OD-9 Pro+ Overdrive Pedal

Full Description

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Upgrading a classic

Even more mids! The Maxon OD9 Pro+ takes on the mammoth task of improving its already timeless design. The modern, brighter version of the OD9 already has a slightly rougher edge making it better suited to slightly heavier styles. The OD9 can still do the classic warm, well-rounded sound that Maxon are known for, but it's also capable of taking things up a notch and going slightly higher gain than its older counterpart.

The main alterations come at the start of the circuit. It starts with a jFET buffer which simultaneously sends high input impedance and low impedance into the rest of the pedal which helps to preserve high-end clarity in the signal. After this, the first tone stage is the Mid Boost feature; when this stage is not in the signal path the pedal behaves like a standard OD9. With this stage in the path, it adds subtle gain and definition to the sound, similar to a cascading gain stage. From here, it's standard OD9 circuitry.

Widely imitated but never accurately replicated, there are a few unique features that give the OD9s their characteristic sound signature. One of these is that the active high pass filter in the clipping stage rolls off the bass so that only frequencies above 720Hz get the full distortion and harmonics below get progressively less, making the distortion frequency selective. After the clipping stage, a passive low pass filter shaves off excess treble giving the characteristic mid boost that Maxon overdrives are known for. The clipped output signal then also contains part of the input signal, perfectly preserving the original dynamics of the instrument while also improving the responsiveness and overall clarity of the distortion. This is what makes the OD9s special- optimum signal filtering and frequency selective distortion.

Specifications

General

• Input Impedance: 500K Ohms
• Input Jack: 1/4" Standard Phone Jack
• Output Impedance: 10K Ohms or Less
• Output Jack: 1/4" Standard Phone Jack
• Outputs: 1
• Equivalent Input Noise: -116 dB or Less (Input Shorted IHF-A Weighted)
• Maximum Gain: Normal 43 dB (at 1.5 KHz), Boost 46 dB (1 KHz)
• Controls: Drive, Tone, Level, Boost/Normal Switch, 9/18 Volt Operation Switch
• Switch: Normal/Effect (True Bypass Configuration w/4PDT Switch)
• Accessory: 1 x 9V Manganese Dry Cell Battery (S-006P), User’s Manual, Warranty Card

Power Specs

• Power Supply: 1x 9V Manganese Dry Cell Battery (6F22) or Special AC Adaptor
• Power Voltage: DC9 V (Battery) / DC10 V (AC-Adaptor)
• Current Consumption:
  • 18 Volts: 35 mA (9 V) / 32 mA (10 V)
  • 9 Volts: 27 mA (9 V) / 27 mA (10 V)
• Battery Life:
  • Manganese Dry Battery: Approx. 3 Hours
  • Alkaline Dry Battery: Approx. 8 Hours
• AC Adaptor: AC210N (Option)
  • Input: AC120V
  • Output: DC9V/200 mA Center - / Sleeve +)

Dimensions

• Width: 74mm
• Depth: 124mm
• Height: 54mm
• Weight (Including Battery): 580g (Approx.)

Please Note: Pedal does not come with an AC adaptor