Michael,
Do not switch the ports over to the tube ports, those of for amps with low damnping factors (Lamm's don't have that problem). Run the Lamm's Switch at the below 6ohm switch. they are an average at 4ohms with a couple of dips below that.
If you are using single ended make sure to use the short plug on the other RCA for either inphase or out of phase depending on your preamp. Even with the XLR's I believe you must have the short plug on one of the RCA's Sets.
Enjoy!
Do not switch the ports over to the tube ports, those of for amps with low damnping factors (Lamm's don't have that problem). Run the Lamm's Switch at the below 6ohm switch. they are an average at 4ohms with a couple of dips below that.
If you are using single ended make sure to use the short plug on the other RCA for either inphase or out of phase depending on your preamp. Even with the XLR's I believe you must have the short plug on one of the RCA's Sets.
Enjoy!