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most companies like hifonics and others use a bass boost knob. which you dont want to use. some companies like audioque use a gain knob, which if turned to max, doesnt exceed the gain setting on the amp itself. its just an attenuator.
the hifonics knob is also a remote gain
I have the MB Quart 1500 watt amp. Being a maxxsonics company it is a bass boost knob?