Identify a Resistor in an Audio Research PH3

Um, why not take them out and measure??

No color code? I have a PH 3 SE. It is something like 20 years old and absolutely wonderful. I have no plans on replacing it. Simplicity at it's finest. All you need is a selection of Takman 1% 1/4 watt metal film resistors. audiocollective.co.uk . Take off the bottom cover at the rear to the left of center you will see four soldering posts two for each channel. With no resistors on them the load is set to 47K.  

My magic decoder ring agreed with your findings. Only a spec sheet for the VTA55 and nothing for the B9T15. A quick call to ARC support should yield answers.