The Peavey Headliner 1000 features a 7-band graphic EQ spaced at optimized frequencies, with each slider providing 15dB of cut and boost to provide comprehensive tone shaping frequencies optimized for bass guitar. Players can use the graphic EQ in conjunction with the low and high shelving-type tone controls or bypass the graphic EQ entirely. A built-in optical Compressor with level control and bypass allows players to add just the right amount of compression to the mix.