equalizer with built in epicenter??

[RAGU408]

i was looking at epicenter on ebay an i came across this gravity equalizer with a built in epicenter in it. i was wondering if anybody out their has any experience with this eq/epicenter?? im thinking of buying it since i listen to rap and spanish music (corridos/banda) an when i have my soundstream bx-10 epicenter on the rap sounds like shit an i hate connecting it on an off everytime i wanna listen to spanish music. i was going to buy a clarion eq but this may be better since its 2 things in 1. so what u guys think? is gravity a good brand? i have no experience with this brand an never even heard of theirs subs or amps.. but here it is http://www.ebay.com/itm/NEW-Gravity-GR-EQP11-Digital-Bass-Processor-4-Band-EQ-Epicenter-BX-4EQ-Free-Ship-/220951392474?pt=LH_DefaultDomain_0&vxp=mtr&hash=item3371bab0da#ht_3953wt_1002