BuyDig offers the BeyerDynamic T90 Jubilee 90th Limited Anniversary Edition Headphones, model no. 716758, for $479 with free shipping. That's tied with our mention from two weeks ago as the lowest total price we've seen for these headphones. (It's a current price low by $170.) These limited edition headphones feature a 5Hz to 40kHz frequency response, Tesla transducers, 250-ohm impedance, microfiber ear pads, and open-back design.