Jul 26 1984 AKG K550 MKII Reference-Class Headphones for $90 w/fs @Harman Audio Posted on July 26, 1984 by DealFinder Rating: 0 Posted By: cvalentinethegreat Views: 57 Replies: 0 Harman AudiohasAKG K550 MKII Reference-Class Headphoneson sale for$ 89.99.Shipping is free. Fatwallet.com Hot Deals