ChubbiesTech via eBay offers the refurbished Harman Kardon Onyx Studio Bluetooth Speaker in Black, model no. ESX2567Q, for $59 with free shipping. That's $40 under our open-box mention from two weeks ago and the lowest total price we've seen in any condition. (It's also $52 under the best price we could find for a new one.) It features 60 watts of total system power, two 3" woofers, Bluetooth, and 60Hz to 20kHz frequency response.
A 30-day warranty applies, although it's not clear who backs it.