Developer's DescriptionBy Anthem AVThe MartinLogan Subwoofer Control App uses a Bluetooth connection to simplify setup and configuration of compatible MartinLogan subwoofers.The MartinLogan Subwoofer Control App uses a Bluetooth connection to simplify setup and configuration of compatible MartinLogan subwoofers.App based controls include volume level, low-pass filter (frequency and order), phase, 2030Hz level, three preset listening modes, and control of Anthem Room Correction. A unique tone sweep feature assists users in locating areas in listening rooms where troublesome rattles or resonances may occur. A single press of a button allows listeners to initiate a tone sweep from 20120Hz. If a rattle or resonance occurs in the room any frequency can be held, allowing the listener to investigate and identify the source of the unwanted noise.Supported Devices:MartinLogan Dynamo 600XMartinLogan Dynamo 800XMartinLogan Dynamo 1100XMartinLogan Dynamo 1600X