"Main IN" on a digital amp - DTR-80.3

[chapps]

I have a Integra DTR-80.3. The manual does not show a 'main in' connection where I send a pre-out from a preamp. The idea of using an AUX connection that will then 'process' the signal further seems a little unsettling.

1. Is the tape in the same?
2. Will AUX color the sound?
3. What is a main in equivalent?

The manual is here:
http://filedepot.onkyousa.com/Files/own_manuals/SN29400811_DTR-80.3_70.3_En_web.pdf

Thanks for any help !!

 

[benricci]

[deleted]