This familiar looking retro-styled foot pedal has an all-metal casing with a non-slip foot pad. The 2Wah pedal can be powered by 9v battery, but Carl Martin always recommends using a regulated power supply (like the Carl Martin Big John Power Supply) for maximum headroom and effect. Input is on the right and output on the left (remember your Wah should be the first pedal in your chain), and the standard effect on-off by stepping on the front of the rocker to engage the true bypass on-off switch.

There are two 3-way mode switches on the front of the 2Wah pedal marked Low (red LED) and High (green LED). These are connected to an on-off switch at the back of the pedal (step on back of rocker to engage this switch). The three low and the three high settings are recreations of six of the most popular vintage wah sounds since the beginning of wah. The Attack knob allows you to fine-tune exactly how you want the rocker to modulate your guitar signal. Six different wah sounds, from Hendrix to Trower to Earth Wind & Fire and beyond, all in one guitar pedal. So why didn t they call it the 6 Wah? Well, you would have to ask Carl

The function of a wah pedal is to manually (by way of a rocker control) modulate your guitar's signal. Plug your guitar into the wah (input right) and then to other pedals, or your amp (output left). By stepping on the front of the rocker, you engage the on-off switch, and by stepping on the back of the rocker you engage the Mode switch. Select position 1, 2, or 3 in both High and Low Modes, engage the effect and fine-tune the attack of this effect by adjusting the Attack knob (also on the front of the 2 Wah). The green (Low) and red (High) LED s indicate which Mode you are in, with Low being typically for lead work, and High being used more often for rhythm work.

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