Originally Posted by dazkyl
Its the onkyo tx sr308. It does not have any auto calib setups
I see. Well, in that case you will still need to setup your system as outlined in the Manual of the Onkyo TX-SR308 starting from page 30. (Just looked it up for you!) The two most important things you need to do are:
1. Speaker distance setting. You will need measuring tape to enter the values manually.
2. Speaker level setting. You will need to buy/borrow a sound level meter and use the built-in test tones to calibrate your speakers' levels.
When done you can set the global crossover to 80 Hz and listen. And if you like it you can call it a day. If not, come back for more assistance.
Hope I could help.