![Boss TW1 T Wah Mods](http://loopholepedals.com/cdn/shop/products/tw1_{width}x.jpg?v=1518292084)
Mod Options:
MIJ Mods: If your pedal was made in Japan (MIJ,) it likely required a 12v aka ACU power supply to operate at proper efficiency. Some MIJ pedals might still work on 9v, but don't sound as good as they're supposed to.
- ACA 2 PSA: Converts the 12v ACA requirement to a standard 9v PSA requirement.