The AW-2 was replaced by the AW-3 late 2000. The AW-3 added a lot of new sounds, not heard from auto-wahs before. There's a dedicated bass guitar input, an input for expression pedal, tap tempo but the party piece is the Humanizer effect. Set two vowel sounds and the wah effect will make a sound approximating a human voice alternating between those two vowels. The AW-3 has also the more conventional up and down wah types and a sharp mode that produces a resonant synth-like wah sound.

Features

• Up, down, sharp and humanizer modes
• Dedicated Bass input
• EXP Input for optional expression pedal
• Tap Tempo (0 - 2 sec.)

Specifications

• Controls: Pedal switch, DECAY knob, MANUAL (VOWEL 2), knob, SENS (VOWEL 1) knob, MODE switch (UP, DOWN, SHARP, HUMANIZER, TEMPO)
• Connectors: GUITAR Input jack, BASS Input jack, OUTPUT jack, EXP/TEMPO jack
• Current Draw: 45 mA (DC 9V)
• Weight: 420g / 15 oz (including battery)
• Nominal Input Level: -20dBu
• Input Impedance: 1MOhm
• Nominal Output Level: -20dBu
• Output Impedance: 1kOhm
• Residual Noise Level: -92dBu (IHF-A weighted, typ.)
• Recommended Load Impedance: 10kOhm or greater
• Recommended AC Adaptor: PSA Series