SWT-1 subwoofer wireless transmitter rear view.

Although correct room placement plays a key role in optimizing subwoofer performance, it can impose the inconvenience (not to mention unsightliness!) of running long lengths of cable through walls, along baseboards or under floors and carpets. The MartinLogan SWT-1 Subwoofer Wireless Transmitter solves the problem. It allows you to place your subwoofer in the exact location where it will deliver the best bass. Cable clutter becomes a thing of the past and actual system setup time can be dramatically reduced. Need to system troubleshoot at a later time? When you go wireless, there will never be an untidy mess of wires to sift through in order to find the right wire.

Wireless Connection Simplifies Subwoofer Setup

While it's true that bass waves are non-directional and in theory, you should be able to place your subwoofer anywhere in the room without affecting bass performance or the performance of your other speakers, it's never quite that simple. Bass is dramatically affected by the room itself – dimensions, dead spots, archways, even furniture placement can cause it to sound bloated or boomy with a lack of definition. Achieving optimal bass almost always requires experimenting with the sub in various parts of the room...and there's the rub! While experimenting, you may discover the best place for the subwoofer is all the way across the room, far from the amplifier or receiver. Or maybe a "hidden" install is required. Both situations impose the inconvenience (not to mention unsightliness!) of running a long length of cable through walls, along baseboards or under floors and carpets. That's where the MartinLogan SWT-1 Subwoofer Wireless Transmitter comes in...

SWT-1 subwoofer wireless transmitter bottom view.

MartinLogan Dynamo 700 and Dynamo 1000 subwoofers are designed for wired or "wire-less" operation. A wireless receiver built into each of these subs can be used to establish connection with the optional SWT-1 MartinLogan Subwoofer Wireless Transmitter (sold separately and available from your authorized ML dealer). The ML SWT-1 allows you to experiment with subwoofer placement to your heart's content. Unsightly wiring becomes a thing of the past and the actual reduction in system set-up time can be dramatic.

Under the Hood

Not convinced? Skeptical about wireless audio? You can relax! Following extensive research and testing, MartinLogan engineers designed the SWT-1 with an uncompressed 16-bit/48-kHz sampling rate (exceeding the current CD standard of 16-bit/44.1-kHz), which proved more than adequate (and accurate!) for use in the wireless transmission of low-frequency information below 200 Hz. And since the RF transmission is digital it is error-checked to ensure no deviation from the original signal.

The SWT-1 operates in the 2.4GHz frequency range. Often, users of wireless technology complain about interference from other noise sources in the room (i.e. wireless local area networks, portable phones on the same frequency, even microwave ovens). MartinLogan engineers included an integrated RF power amplifier that provides a 15 dBm RF power level to reduce interference. Stray RF interference is also reduced through use of Adaptive FHSS operation (think Bluetooth technology, it's similar!).

In a typical room situation, the SWT-1's transmitter has a maximum unobstructed operating range of 40 feet (12.5 meters) depending on placement of course. If desired, its compact dimensions allow it to fit neatly into an audio/video rack.

Dynamo 1000, SWT-1, and Dynamo 700.