Audio amplifier alignment procedure questions
Rev A

it could be a 220Ohm 10 Watt resistor if it is stable. An audio power Amp is just a voltage source near 0 Ohms  ( 10mOhm ish)

Old answer


You need 187 Ohm 20W to make 16 Ohms


Figure out what's easiest for you.  

e.g. 100x 1/4W axial resistors on a "Digi-reel"  shunted in parallel 18.7k Ohm

or one 20W resistor or whatever... 


For 30Hz 1.5mVrms input, output "Should be between .94 Vrms and 1.06Vrms."  Thus CW rotation increases signal input and more compression occurs in the log amp.  


So turn CCW slightly. to the minimum level of this range.  
Going outside the range, of course, increases risk to cone-wire overtravel stresses or excess compression.