I have my own theory based upon a google of D&M Holdings Bain Capital. D&M is "a Bain Capital portfolio company". Bain is headquartered in Boston.

What popped up was the a link to a job posting on July 11 2012 on CareerBuilders.com for a Regional Sales Manager position at D&M which stated "We are currently seeking a Regional Sales Manager to direct efforts to achieve sales goals for our Denon, Marantz & Boston Acoustics brands in our Direct to Consumer business. This positional will frequently consolidate support functions for the region to provide efficiencies of scale."

Seems like plenty of motive to me for a traditional B&M company headquartered in North America. A shipping 978 could directly threaten AV7xxx and AV8xxx sales.