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MAXON AF-9 AUTO FILTER.
Originally introduced as a key component of analog synthesizers,
envelope controlled filters came into prominence in the early 1970s
with the release of the legendary Mutron III. Envelope filters are
wah-wah type sliding filters that are triggered by an input voltage.
Unlike standard wah pedals whose center frequency is controlled by
moving a treadle, an envelope filter's center frequency is controlled
by playing dynamics, allowing for an almost unlimited variety of
effects based on expressive nuances in a player's performance.
The
AF-9 Auto Filter represents the state-of-the art in analog filtering.
Like the original Mutron III, the AF-9 uses a CdS Photocoupler (HTV
#P873) rather than a VCA at the heart of its circuit. The unique sound
of Photocoupler circuitry provides a liquid, shimmering, vowel-like
filtering that cannot be produced with other components, giving the
AF-9 superior sound quality with lower noise levels than the
competition.
The AF-9's Threshold control determines when the
effect will trigger, while the Peak control boosts the center frequency
for more dramatic filtering (like a Resonance control on a
synthesizer). Selectable Range control (Hi/Low) determines the overall
tone of the AF-9, while the Drive (Up/Down) control determines the
direction of the filter sweep. Three selectable Filter types (Hi Pass,
Band Pass, and Low Pass) and a frequency range of 100 Hz � 4 KHz allow
the AF-9 to function with virtually any instrument or input signal.
From
simple wah-wah's to outer-space noises, the AF-9 provides the most
desirable swept filter effects in a compact, user-friendly package.
Input Impedance: 500K Ohms
Input Jack: 1/4 inch standard phone jack
Output Impedance: 10K Ohms
Output Jack: 1/4 inch standard phone jack
Output: 1
Residual Noise: -95 dB or less (input shorted IHF-A weighted)
Filter Frequency: 100 Hz � 2 KHz (Low) / 200 Hz � 4 KHz (High)
Controls: Sensitivity, Peak
Switch: Normal/Effect (true bypass configuration), Filter LP/BP/HP, Drive Up/Down, Range High/Low
Power Supply: 9V Manganese dry cell battery (6F22) or special AC adaptor
Power Voltage: DC9 V (Battery) / DC10 V (AC-adaptor)
Current Consumption: 17 mA (9 V) / 19 mA (10 V)
AC Adaptor: AC210N (option)
Input: AC120V Output: DC9V/200 mA Center - / Sleeve +)
Dimensions: (whole) 74 mm (W) x 124 mm (D) x 54 mm (H)
AUDIO DEMOS:
HARMONY CENTRAL USER REVIEWS:
Sound Quality: 10
Sound
quality is excellent. This is the closest I have heard in being able to
mimic the original Mutron lll. I originally was using a Boss T-wah
whcih I found to be the best sounding and most responsive "auto wah" to
date. This blows it away. Yes, they are different effects, but still.
The AF-9 has much more low end and fatness than any "Auto Wah" I have
tried. This envelope filter is what all "auto wahs" WANT to be. It has
much more control and is much more expensive. For a reason. Very worth
it. And then there is the "true bypass" that the original Ibanez pedals
(and Mutron) didn't have. This pedal sounds great.
Overall Rating: 10
If
you're looking for a Mutron-III and want to sound like Jerry or play
some crazy funk, this is what you've been looking for. I have a Crybaby
Wah pedal that is off my pedalboard and is being used as a paper weight
right now. Get yours before they discontinue it. If you know how to
play guitar and use dynamics and nuances in your playing, this will
only enhance your style. Seriously, this is by far my favorite pedal
and effect ever. GO BUY ONE NOW BEFORE YOU REGRET IT.
Sound Quality: 9
THANK
YOU,MAXON! I've been looking for a back up for my AF-9, dreams do come
true. I A/B'd it wth the Mutron III. My particular 70's Mutron sounds
almost identical, but the "9" does sound little tighter. AF-9, YEAH,
baby, YEAH!
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