Getting access to the PCB involves removing the main plug, desoldering the speaker leads, remove the speaker panel (6 screws), and finally removing the circuit (4 screws).
So, while I've got the access I measured (top/upper bottom/lower are in terms of the schematic)
Top of the bias diode pair (base of BFT82): 0.718V
Bottom of the bias diode pair (base of BFR61): -0.693V
Base resistor of upper BD711: base:101mV, o/p -98mV (so the DC bias is actually negative)
Base resistor of lower BD711: base -34.8V, lower (negative pwr rail) -35.0V.
So both 100Ω resistors have around 200mV across them, current = 2mA
DC resistance of the speaker (currently unwired) is 6.8Ω (nominal is 8Ω)