AW-2 Auto Wah

The BOSS AW-2 Auto Wah features a manual control for the frequency of the wah modulation, along with nuanced depth and sensitivity controls for an effect that responds to playing dynamics. It is a mix between an envelope filter and a filter modulated by an LFO. The pedal was sold from November 1991 to January 1999.

Specifications:
- Input Impedance: 1 MΩ
- Output Impedance: 1 kΩ
- Recommended Load Impedance: 10 kΩ or greater
- Residual Noise: -80 dBu or less (IHF-A, Typ. )
- Power Supply: DC 9 V: Dry Battery 9 V type (6AM6/9V), AC Adapter (PSA-120, 220 or 240 : option)
- Dimensions: 70 (W) x 125 (D) x 55 (H) mm / 2-3/4 (W) x 4-15/16 (D) x 2-3/16 (H) inches
- Weight: 420 g / 1.0 lbs (including Battery)

The AW-2 Auto Wah delivers a wide variety of wah effects, including a dynamics-sensitive wah that changes with the signal strength and a modulation wah for automatic wah effects.