The SOA chart for the MLJ3281/1302 looks similar to the 2SC5200/A1943, so I would stay under 50V rails and make sure the heatsinks are big.
I fired one channel up today on 28V rails and it worked OK, the DC offset does drift alot at startup but the built-in protection circuit comes in at around +/-600mV.
I've read on DIY Audio that it has low PSRR so a regulated supply might work well, I am thinking about using a low drop out LT1083
I fired one channel up today on 28V rails and it worked OK, the DC offset does drift alot at startup but the built-in protection circuit comes in at around +/-600mV.
I've read on DIY Audio that it has low PSRR so a regulated supply might work well, I am thinking about using a low drop out LT1083