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The second generation WATCH Dog subwoofer has undergone the most radical redesign of any of the WATCH system components. Specifically, it has been transformed from an active subwoofer (with a built-in amplifier), to a passive, unamplified unit.

There's a widespread myth that since subwoofers operate in the low to subsonic frequency range, the sonic quality of the amplifier used to drive them is not critical. Couple that with the fact that the FTC-mandated criteria for power amplifier specifications don't apply to active subwoofers—a loophole which allows manufacturers to make wildly inflated performance claims for what are, in many cases, and with no pun intended, severely sub-standard amplifiers built into their subwoofers.

Superior low frequency performance—whether as part of a home theater system, or in a two-channel music system—demands high quality, high current amplification. The active WATCH Dog certainly provides both. Nevertheless, listening tests clearly show that the most cohesive systems are those with matching amplifiers driving all of the loudspeakers, including the subwoofers.

WATCH Dog Subwoofer The new passive WATCH Dog provides the most cost-effective and flexible approach to that goal, whether in a single unit or a multiple unit configuration. Key to this flexibility is the new external WATCH Dog Controller, highlighted in the next section.

A true subwoofer, capable of clean, distortion-free sub-frequency response, has to be sufficiently large to move the volume of air which visceral frequencies require. As hard as some manufacturers may try, there's no getting around the laws of physics on this one. The good news is, the passive WATCH Dog is 40% smaller than its predecessor, while maintaining the same internal tuned volume. So the new WATCH Dog is easier to place in your listening environment with no sacrifice in performance.

Mais informações - https://www.wilsonaudio.com/products/watch-dog

WATCH Controller

The first thing to know about the WATCH Dog Controller is this: you may not need one. If your intended use for the passive WATCH Dog subwoofer is solely as an LFE (low frequency effects) driver in a 7.1 or 5.1 Home Theater system, all you need to do is connect the subwoofer directly to the LFE output of your amplifier(s) and be prepared for seat of the pants excitement in your home movie experience. 

If you desire to use the WATCH Dog in a hybrid or multiple configuration system, then the external controller becomes the brains behind that flexibility, whether you're using one subwoofer or several. 

In Movie Mode, the low frequency effects output from your processor goes directly through the controller to the WATCH Dog. 

Switching to Music Mode (accomplished either with a front panel toggle or a 12 volt trigger), the controller becomes a feature-rich crossover and equalizer. You can control both crossover frequency and slope. A continuously variable phase control and EQ functions complete the features necessary to seamlessly integrate a WATCH Dog with any pair of Wilson loudpseakers. 

More info - https://www.wilsonaudio.com/products/watch-controller