Kenwood KA 8100 as a pre amp?

I’d like to use my Kenwood KA 8100 as a preamp to another (newer) Kenwood amp. The KA 8100 has preamp out terminals and jumpers between the preamp and amp. Not sure if all I hve to do is remove the jumpers and use the preamp outs to the other amp. Is there more to it?

Thanks.