Pictures
reissue
reissue
reissue
Controls
- Sensitivity
- determines when the effect will trigger.
- Peak
- boosts the center frequency for more dramatic filtering (like a Resonance control on a synthesizer).
- Filter (LP/BP/HP)
- Selects the type of filter: Lowpass, Bandpass or Highpass.
- Drive (Up/Down)
- Selects the direction of the filter sweep: upwards or downwards.
- Range (High/Low)
- Selects the frequency range of the filter.
Information
Maxon
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 à 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.
Video
(2011-11-12) Maxon: AF-9, AD999, D&SII - together with Les Paul to HIWATT Custom by Burgerman666
(2014-09-18) Quick demo of the Maxon AF-9 Auto Filter by Danny Rader Music of the Keith Urban band. - YEAH!!! by Godlyke
Specifications
- Input Impedance
- 500K Ohms
- Output Impedance
- 10K Ohms
- Residual Noise
- -95 dB or less (input shorted IHF-A weighted)
- Filter Frequency
- 100 Hz  2 KHz (Low) / 200 Hz  4 KHz (High)
- Power Voltage
- DC9 V (Battery) / DC10 V (AC-adaptor)
- Current Consumption
- 17 mA (9 V) / 19 mA (10 V)
- Dimensions
- 74 mm (W) x 124 mm (D) x 54 mm (H)
- Weight
- 580g
Related
- Ibanez AFL Auto Filter (1985-1986)
- Maxon AF-01 Auto Filter (1985)
- Maxon AF-201 Auto Filter (1979)
- Maxon AF-F1 Auto Filter (1996)
- Ibanez AF-201 Auto Filter (1981-1982)
- Ibanez AF9 Auto Filter (1984-1985)
