The new AD-9 Pro model improves on one of Maxon’s most coveted models in order to produce the best-sounding, most reliable analogue delay ever. Featuring 4 of Maxon’s proprietary MC4107D bucket brigade IC’s, and the world’s first RMS level sensor and companding noise reduction system, the AD-9 Pro delivers 450 milliseconds of the most transparent analogue delay sound ever available in a stompbox format.

Offering improved headroom, the AD-9 Pro can accept any input signal and will work in an amplifier's effects loop as well as its front-end.

The AD-9 Pro also features a switchable multi-head tape echo simulator function. This feature provides interesting new delay effects such as the “Ping Pong” repeats made famous by Tape Echo units as well as ambient effects that recreate the echoes of a large concert hall with stunning accuracy.

AD-9 Pro is outfitted with mechanical true bypass switching on both wet and dry outputs by use of a 4PDT switch assuring pure unaltered tone when bypassed.

In a world that grows more “digital” by the day, the Maxon AD-9 Pro sets a new standard of analogue innovation and audio purity.

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

Switch: Single/Dual Mode, Effect

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)