thanks for the repsonses. My room is 12 x 19 with 8 foot ceilings. Not looking for massive volume but an improvement in sound. From the responses I see there are many ways to approach this but everyone agrees that adding more subs is the way to go. I'll seach for the papers Miller Carbon mentionerd to gain more insight. The Barry Ober paper I mentioned has a link to purchase a test sound CD and detailed instructions on how to use and set up each sub. Was $18.
adding multiple subwoofers
Thank you all for some of the advice I’ve received on the forum. As a result I've made changes to my room and speaker layout, added GIK room treatment and have Townshend bars. I am now considering adding 4 subwoofers after suggestions here and reading the Adding a Sub paper by Barry Ober.
Ober suggests adding a crossover like the dbx crossover sending low frequencies to the subs only and the rest to the main amp / speakers. I am considering going that route. I have a Primaluna EVO 400 and Klipsch Cornwall IVs. I am considering the SVS SB-1000 Pro subwoofers. SVS has received positive reviews here and I liked the price point ($2000 for 4 subs) , the smaller footprint, lack of a port, and the ability to use the SVS app to make all the subwoofer adjustments the Ober paper suggests. Seems using the app could also be an easier way to make those adjustments?
There seems to be many ways to add multiple subs, such as the AK Swarm, for example. That would be more expensive and not clear on the specifics of setting them up or benefits. Have others gone my route? Is there a reason to go towards the Swarm or something else?
Thanks again for any help.