The pure warmth of analog delay with low-noise circuitry.

The AD999 Pro Analog Delay Pedal takes the features of 2 of Maxon's most advanced delay units and combines them into a single, powerful guitar effects pedal. Based on Maxon's popular AD999 circuit and featuring the same four custom-made Maxon MC4107D bucket brigade ICs, the Pro pedal offers the same 900 milliseconds of fat, warm analog delay tone.

Borrowing from the AD-9 Pro circuit, the delay repeats of the AD999 Pro are then filtered using Maxon's proprietary RMS level sensor and companding noise reduction circuitry to provide the most pristine, low-noise analog delay tone available. With this noise reduction circuit, aliasing and clock noises that were considered typical in analog delay units have been minimized to the point that they are virtually nonexistent. With a dynamic range that is 18 dB wider than most other delays and a maximum input level of +12 dB, the AD999 Pro can be used with any input signal. This improved low-range response yields a bold sound not normally associated with analog delay, and the superior balance between low and high range that the AD999 Pro offers creates a delay tone that is simultaneously clear and firm yet retains the characteristic warmth of analog. Furthermore, the wider dynamic range allows the AD999 Pro to be used in the effects loop of any amplifier without creating signal distortion or level disparities.

The Maxon AD999 Pro features a "Multi-Head" mode operated via 3 top-mounted mini switches. In Multi-Head Mode, midstream delay signals (taken from the middle of the BBD delay circuit) are added to the normal delay signal to emulate the sound of Tape Echo multi-head operation. These feedback loops can then be selected by the user in a variety of combinations to create complex multi-tap delay repeats and rhythmic delay effects such as triplet- and sixteenth-note rhythms against the main delay repeat. The Multi-Head mode can also create a striking Tape Echo simulation, or it can be used to create ambient effects such as large room and concert hall reverberation.

The AD999 Pro delay pedal features Maxon's now-standard DC-to-DC voltage converter and regulator circuit, assuring consistent performance of the effect regardless of AC power fluctuation. The AD999 Pro also ships with the new Maxon AC2009 power supply. The AC2009 provides very consistent high current that is regulated and filtered to provide stable, noise-free power. The AC2009 is auto-sensing, so it can be used anywhere in the world by simply changing out the detachable plug cord on the output side of the PSU.

Topping off this amazing delay unit are stereo (wet/dry) outputs that allow panning of the delay signal to 2 amps or mixer channels. Like all of today's Maxon models, the Maxon AD999 Pro features mechanical true bypass switching on both outputs via a custom 4PDT low-noise switch.

Maxon AD999 Pro Analog Delay Guitar Effects Pedal Features:

• Input Impedance: 500 kOhms
• Output Impedance: 10 kOhms or less
• Residual Noise: -100 dB (IHF-A)
• Delay Time: 80-900 milliseconds
• Controls: Delay Time, Feedback, Delay Level
• Switch: Bypass/Effect (Mechanical TBS); Multi-delay 3/8, 4/8, 5/8
• In/Out: Input, Output, Dry Output
• Indicator: Bypass/Effect LED
• Current Consumption: 72 mA / 9 VDC
• Power Supply: Maxon AC Adaptor
• Dimensions: 4-3/4" W x 2-7/20" H x 6" D (120 mm x 60 mm x 152 mm)
• Weight: 1.39 lb. (excluding AC Adaptor)
• Accessories: Maxon AC Adaptor (AC2009)

Step up to the analog delay tone of the AD-999 Pro—order now.

Maxon AD999 Pro Analog Delay Guitar Effects Pedal

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For now, my search is over.

Posted by Frankenstein from Dania Beach, Fla. on Aug 21, 2009

Experience w/product: I own it

Reviewer's Background: Active Musician

Reviewer's Play Style: Alternative

Fantastic. Super quiet, lush, and easy to use. Great for both live performances and studio work. I wish it had two separate delay times and and expression pedal input, but overall, this unit is worth every penny.

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Maxon AD999 Pro Analog Delay Guitar Effects Pedal

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