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Look up onIbanez AF-201 Auto Filter a rare analog envelope filter from the late 1970s and early 1980s. It is highly sought after by funk and rock musicians for its ability to produce expressive, wah-like sweeps that respond directly to your playing intensity. Controls: Features two sliders for Sensitivity (trigger threshold) and Peak (resonance), along with switches for Filter Mode (LP/BP/HP), Drive (up or down sweep), and Range (high or low).Performance: Experts from Vintage GuitarĀ® magazine note it is quieter and more compact than a Mu-Tron III while offering similar synthesizer-like sweeps.Specifications: According to Crave Guitars, it measures 70mm x 125mm x 56mm and weighs 550g.

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