I currently have an Ashdown Mag 300H (300 watts) with an Ampeg BSE 410HLF (200 watts). I am wanting to add a 15" to get a different sound. The Mag 300H has a minimum impedance of 4 Ohms. There are two outputs on the back of the Ashdown. My BSE 410HLF has a minumum impedance of 8 Ohms. I would like to add maybe an Ampeg BSE 115 (15 watts) which has a minimum impedance of 8 Ohms. Would this work, and would an Ampeg be a good choice for price/style/sound. I play in a rock/emo band as well as a praise band. Thanks for the help!