Www.gsgad.com. The Birch Devastator 21 is here. There are 2 versions. A home theater version tuned at 19hz and a pro audio / music only version, tuned... | By GSG Audio Design | Facebook
![7 Home Theater Subwoofer Battle: SVS SB2000 Pro vs GSG Devastator vs Kraken/ Marty Cube/ Velodyne - YouTube 7 Home Theater Subwoofer Battle: SVS SB2000 Pro vs GSG Devastator vs Kraken/ Marty Cube/ Velodyne - YouTube](https://i.ytimg.com/vi/K7zaouG-RHw/maxresdefault.jpg)
7 Home Theater Subwoofer Battle: SVS SB2000 Pro vs GSG Devastator vs Kraken/ Marty Cube/ Velodyne - YouTube
Www.gsgad.com. The Birch Devastator 21 is here. There are 2 versions. A home theater version tuned at 19hz and a pro audio / music only version, tuned... | By GSG Audio Design | Facebook
![7 Home Theater Subwoofer Battle: SVS SB2000 Pro vs GSG Devastator vs Kraken/ Marty Cube/ Velodyne - YouTube 7 Home Theater Subwoofer Battle: SVS SB2000 Pro vs GSG Devastator vs Kraken/ Marty Cube/ Velodyne - YouTube](https://i.ytimg.com/vi/oZPB286U6lE/maxresdefault.jpg)