These amps are HK Citation16s, solid state. There is no switch to flip on these units but I used to own a pair a while back that had been modified to run as mono-blocks...so I know it can be done.
It all depends on whether or not the amp is set up to be bridged. You usually have to flip a switch on the back to convert it into a bridged situation. Then it would become a monoblock. Meaning one for each channel.
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