Thanks will tryThe Onkyo doesn't seem to have PRE OUTS so it can only be used as a source, not as a preamp.
If your ProJect is a power amplifier you will need to place a preamp between the Onkyo 'ZONE 2 LINE OUT' and the ProJect input jacks.
If your ProJect is an integrated amplifier then just plug the 'ZONE 2 LINE OUT' to one of the line inputs.
Thanks will try