Congratulations on the purchase of your new M-188 MXR Bass
Auto Q stomp box! MXR effects have been favored by profes-
sional guitarists for decades. While other effects have come
and gone, MXR’s keep getting the job done … with bulletproof
construction, quiet, reliable switching and tasteful, musically
inspired tone shaping.
DESCRIPTION
• Authentic Crybaby
®
Bass Wah tones and Q control
• Sensitivity circuit delivers effects at any volume
• Blendable LFO shimmer goes from tremble to shriek
• Fully adjustable transition from wah to LFO
• Indestructible, die-cast zinc housing
POWER
The MXR M-188 Bass Auto Q uses one 9-volt battery. The battery access is
through the bottom of the pedal. The Bass Auto Q uses the Dunlop ECB03
Adapter (ECB03E for Europe), a 9-volt DC regulated AC adapter. Plug polarity
is positive on the barrel and negative in the center. Note: Battery must be
installed to operate the Bass Auto Q unless an AC adapter is used.
M-188 bassautoQ
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