If I run through the pedal and keep it all the way up, will it change the sound, or do you have to push it down to a certain level?
Wow, you're
really new to wah.
Basic idea of a wah pedal: when the pedal is toe-up (like in the picture), you get a bassy sound with less treble. When toe-down (pushing it forward all the way), you get the opposite - more treble, less bass. Halfway in between, it's midrange-focused and has less bass and treble.
Think of a wah as a weird EQ pedal which shifts the peak as you move your foot.
The thing I should point out about the blue Morley (and this is true of the old all-blue Bass Wah and the new black-with-blue-text Dual Bass Wah) is that it's
switchless.
A traditional wah (like your standard Dunlop Crybaby) has a switch under the toe end, so if you push down on the toe end, the effect turns on or off. When turned on, you can leave those wahs in any position that you want for an interesting filter effect at that point in the sweep, or move them back and forth to produce the classic wah effect.
A switchless wah, however, is spring-loaded. It stays toe-up and turned off until you push down on the pedal - then it triggers on. If you step off the pedal, the spring returns it to the toe-up position and the pedal turns off. It's convenient, but if you want to keep it at one position of the sweep, you have to hold it down in that spot and keep your foot steady, or the spring will push it back to the "off" position.
Technically speaking, a switchless wah is not actually switchless - it just simply means that if you want the pedal to turn off, get off the pedal.
Thanx!
