Thanks @agedhorse ! I'm very ignorant with tech stuff, but trying to learn more all the time.
I'm not sure what "full line level" means exactly?
On the back of the amp it has this written:
"RECEIVE (POWERAMP IN) (LINE LEVEL)"
The Kinetix manual says the following, but doesn't give numerical figures in terms of specs for the fx loop.
1.
EFX LOOP – A rear panel effects loop (SEND and RECEIVE jacks) is provided for connecting “serial” outboard devices such as compressors ... This loop is located right before the MASTER volume control and is also intended as a Preamp Out / Power Amp In connection for possible “chaining” of amplifiers in a Master / Slave configuration. The effects loop contains a “normal switch” in the RECEIVE jack that interrupts the signal path when a plug is inserted into the RECEIVE jack. The SEND jack may be used for an aux. output without breaking the signal path.
2.
MASTER – This control adjusts the overall volume of the amplifier and also adjusts the input level of the EFX LOOP RECEIVE and AUX IN jacks. Typically, the best results are obtained when this control is operated between the 9:00 and 3:00 positions.