Is the bass cube from phoenix worth the money? Right now I have an alpine 9813 with type X components and infinity kappa coax and a 12" type R sub. I have 2 US acoustic amps a 4085 and a 2100. The sound is not what I like right now. I am planning on adding an digital equalizer as well. Is the bass cube worth about $70.00 used? I have already spent over a $1200 and need help.