Ok I struggle a little bit with the technicalities of amp wattage. I have a nice wee Markbass CMD210 which does 300W into 8Ohms which is fine as it is 400W speaker set up. However, am thinking of buying a Son of Bertha SWR 1x15 to pair with this, but this speaker is only a 350W 8Ohm speaker and the Markbass apparently does 500W into 4 Ohms. Can I safely get away with using the SWR with the Markbass? 