The XB was introducted around 1972 for $130 (at this time the XA was $115) with a plywood veneer base, the tonearm lift, no mechanical damping, black plastic headshell, and a stainless steel counterweight. The metal top plate was always black and the power switch was a rocker type on the right side. The brushed steel or aluminum AR logo surrounded the power switch and cueing lever. The tonearm rest was metal.
Suspended aluminum platter-2 parts-in oil bearing - 3.9 lbs (1.8kg)
12″ S-Shaped tonearm in oil bearing with cueing
Plastic Headshell with brass inserts for cartridge screws-Black
Counterweight-Brass, Stainless Steel
AC synchronous motor 110-120 v 60 cycle
Wow and Flutter, Speed Accuracy, Rumble see XA Technical Specifications
Base Finishes: Vinyl Walnut-look Veneer
Metal Plinth Finishes: Textured black
Overall size: ?
Total Weight ?
(Note: There were also the XA91 and XB91 that came with a Shure M91ED cartridge for an extra $55.)