The Bryston 28b³ monoblock amplifiers in the making. In the photos, you can see two sets of Bryston 28b³ amplifiers, one pair in 19″ black and the other pair in 19″ silver. They will be on the burn-in bench for the next 100 hours while being monitored for any issues along the way. Once the burn-in process is complete, they will undergo a series of tests and adjustments to ensure everything is in order before being shipped to Bryston customers.