I have a Ampeg SVT 8x10 classic cabinet. It is rated for 800 watts at 4 ohms and max of 1600. I am using a QSC 1850HD power amp bridged to 1800 watts. The first couple times I played it, I left the filter on the power amp turned off and my cabinet ended up making a weird pop sound when i turned up loud which i figured out was too much low notes going to a cabinet whose lowest frequency is around 40HZ. I tried it with the switch set to 30 and it would still do it. I know now that I should set it to the 50hz position but I haven't tried it yet and just wanted some input if this should work ok or is that a little too much power for that cabinet period. I asked for advice from lord valve when i bought the power amp and he said that it should be fine. Thanks for any input.