The BC83.1 features six industrial-grade outlets ensuring reliability and performance.
Each pair of outlets is controlled by one of three filters. A BC83.1 is upgradeable
to a BC85.1.
The BC85.1 offers the same configuration as the 84 with Hubbell hospital-grade outlets
and AC plug. The BC85.1 also offers improvements in appearance and "external components".
Upgraded cosmetics match the unit's appearance to other Blue Circle Audio products
while the use of solid Wenge as feet, help reduce introduction of external vibrations
to the chassis.