Posted on 2021 June 132021 November 07 by P4MUBoss EQ-500 Will the Boss EQ-500 Graphic Equalizer see the light of day? Boss EQ-20 was announced in January 2001. Boss GE-7 was announced in 2008. Boss EQ-200 was announced on June 13, 2019. Where do we go from here? Back to Boss EQ-200. Go to Boss Pedals.