Aspiring producers and mixing engineers — especially those with sizable budgets or deep pockets— will have an opportunity to buy the one-of-a-kind Emi recording console used by the Beatles when it goes on sale next week, Oct. 29, on Reverb.

The board going on sale is the original Emi TG12345 prototype, which was built in 1969 and installed in Abbey Road Studios, where it was used for about a year. The Beatles used the console to track their legendary album Abbey Road, then all four members used it on their earliest solo projects:...