No, the line out is different. It is at a fixed level that cannot be hooked up to a power amp. You need the preamp outputs. If it states "pre-out" look up the owners manual on the net to double check that one. Actually, before you hook any of the preamp, or "pre-out" outputs to an amp, double check the manual to make sure it's a variable output. I've seen a couple have a variable/fixed option in the past. A lot of companies put their manuals on the net now.
If you hook an amp to a line out, the volume could be loud enough to blow your speakers. The volume does not change with these outputs. These outputs are for tape recorders, processors, CD recorders, etc.