
Anthony Easton
The Maxon AD-9 Pro is a highly sought-after analog delay pedal known for its exceptional sound quality and innovative features. Here are the technical specifications and details for the AD-9 Pro:
- 100% Analog Delay with 450 mS delay time
- Gorgeous, warm, organic delay tone
- Special filtering on repeats to reduce distortion
- Multi-Tap switch for “beat-split” effects
- Capable of Self-oscillation effects
- Stereo (wet/dry) outputs
- Works in FX loop or front-end of amp
- True Bypass Switching
- Features 4 Maxon MC4107D bucket brigade IC’s
- Incorporates the world’s first RMS level sensor and companding noise
reduction system
- Improved headroom for accepting any input signal
- Switchable multi-head tape echo simulator function
- Mechanical True Bypass switching on both wet and dry outputs
- Input Impedance: 500K Ohms
- Output Impedance: 10K Ohms
- Residual Noise: -100 dB or less (IHF-A)
- Delay Time: 20 mSec to 450 mSec
- Equivalent Input Noise: 116 dB or less (IHF-A)
- Controls: Delay Time, Feedback, Delay Level
- Operating Voltage: 9V
- Power Consumption: DELAY TIME MIN 39mA/DC.9V 38mA/DC.10V
- Dimensions: 74 mm (W) x 124 mm (D) x 54 mm (H)
- Weight: 80 grams (including battery)
- Battery: 9V battery (6LR61 or 6F22) x 1 or Maxon AC adaptor
- Battery Life: Manganese dry battery more than 2 hours 25deg C / 77deg F
(Panasonic 6F22NB) Alkaline dry battery more than 8 hours 25deg C / 77deg F
(Panasonic 6LR61G)
The AD-9 Pro sets a new standard of analog innovation and audio purity, making it a top choice for musicians seeking rich tone and versatile delay effects.
Watch the latest video demos and reviews for the AD-9 from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.

Below are live Reverb listings for the Maxon AD-9 from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.

Very Good
$176

Very Good
$188

Very Good
$180

Very Good
$179

Very Good
$168.80

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Check out the latest news and articles from around the pedal world.

Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton