Outline Audio LAB21 Infra-Sub.  LAB 21 stands out from ordinary enclosures because it features ingenious acoustic architecture (a hybrid waveguide and indirect radiation system). So ingenious that it ensures top-grade performance from an enclosure that is objectively very compact: the world’s most compact fitted with a 21" woofer.

Why buy from UsedAV.com?  Our “UsedAV Owned” inventory is equipment maintained by our certified technicians in one of our four nationwide locations.  With a knowledgeable staff and unparalleled customer service, we are sure you will be happy with your audiovisual gear purchased from our site.

Features:

• Demo unit available for immediate sale.