Hello fellow forum members. I am a new member, that just took ownership of a Coliseum Slave amplifier. It was given away free, and nothing known of working condition.I know it is a power amp that can be used to power more speakers, but I want to use it with a pre-amp to play my bass guitar. I tried out the amp after bringing it home. I powered it up on a dim bulb tester, and everything was good. Then plugged my bass into a Sansamp pre and plugged a 1x10- 8 ohm speaker cabinet into one of the 1/4" jacks on the back. It played fine, but had a scratchy pot. It didn't seem very loud to me, but I thought it was because of the 8 ohm cab. I didn't want to plug into a 4 ohm cab without knowing the speaker output layout. As it looked like there was a extra jack that was added. And the last time I plugged a 4 ohm cab into a new to me solid state amplifier, I let out the magic smoke. I took the case cover off, cleaned the pot and jacks and took a few pictures of the speaker output jacks. It looks like all the speaker outputs are wired in parallel. But the one jack that looks like it was added, looks to have a coil and resistor /cap
I have enclosed pictures, and hope somebody will set me straight on what size cabs I can safely use with this amplifier.