This is a Citadel which is the fully balanced version of the Oblivion amp. Options include speaker taps, impedance switch for higher output and rca jacks with on/off switch. If you want more pictures that's my amp on the website. Sounds great but selling since I don't have much time to use my system. Located in Los Angeles for local meetup, otherwise asking $1950 Paypaled and shipped. This configuration will run over $3k if you order a new build with these options. Cheers!