[Premium-Rx] Audio connections Harris RF-590A/R-2368

[Mac]

Readers, for the moment i have misplaced my Harris R-2368 manual, but 
what i would like please is help in identifying one of what i recall as 
several AUDIO output points on the 25 pin D or the 37 pin D connector on 
the back of this receiver. My memory is at the least a 600 ohm and i 
think either a 4 or 8 ohm output is also available on the connectors.

And what do we think the buying price is for this receiver, presently 
this receiver is not mine but only for evaluation, while goodness knows 
i don't need this or any other additional receivers,  when has that ever 
been the determining factor, this receiver is from a friend so my 
pricing needs to be objective, i do think he set me up for this,  
knowing my fondness for receivers like this ..

Thank you in advance please ...
warm regards:  mac/mc  W5Merry Christmas