So far I've got a QSC PLX 3002 power amp and a BBE BMAX-T preamp in a four space SKB rack. I'm considering the following pieces of equipment: Furman power conditioner Korg DTR tuner dbx compressor A different-sounding preamp from mine such as a Sansamp RBI (solid-state) What do you guys think? I don't want anything that will add alot of extra weight. I'm leaning towards the tuner, but is there anything else out there that would be beneficial to an already decent setup? Thanks!