Trace Amp (Effects, Ring-Send and Tip-Return)

[badboy1984]

First to start off my amp is solid state and both preamp and power amp is separate within a single case sleeve.

The preamp I got is a very old GP11 and the power amp is no name (look like home made).

The back panel only have power switch and 2x speaker jack and the front panel of the Trace Elliot GP11 a effect jack, but it only have 1 jack label as "Effects, Ring-Send. Tip-Return". Usually a amp have 2x jack for effect send and return.

I think this is post EQ so can I actually line out this?

Reason for asking is because I want to use this unit as preamp only and thats the only way I can line out the preamp signal? so I can connect a external power amp to that?