Audio signal amplifier for use in musical instrument such as guitar, has variable frequency sensitive power attenuation circuit that is manually settable to control output volume from loudspeaker

摘要

A conductor (33) is connected in series with a loudspeaker (18) while another conductor (21) is connected in parallel to the conductor (33). A variable frequency sensitive power attenuation circuit of the conductor (21) is manually settable to control an output volume from the speaker. Independent claims are included for the following: (1) Volume control device; and (2) Loudspeaker cabinet.