Sub is a dayton 315HF-4 12" with a dayton 250 amp. Denon AVR-E300.
The combination of my room and my wife dictated that I build something that would hide nicely behind our TV. My previous sub was the Pioneer 8 that matches the rest of the speakers. It did a fine job and will be relocated to the basement. It was surprisingly good for music with its 33hz tune.
This new sub is tuned to 21hz based on winisd. I do not yet have the mic to do real in room testing. It is 3/4 mdf, outside dimensions are 13.5 x 13.5 x 50.5. 3.6 internal cubic feet after sub+amp+bracing. 19" dayton 4" dual flared port. 1" dowel rod bracing. 1 additional brace was added after I took the pictures toward the top of the box where you can see the large unbraced section.
I have build numerous cabs for autos in the past but this was my first in home sub.
I also built a sonotube sub to compete against this. The sono lost. It was only 3.1cf3. The sono had a little more punch but couldn't touch the lows of the mdf box. The sono was cheaper to build and alot easier and lighter.
I used 3inch polyfil pad at both ends of the box and nothing lining the walls. The addition of the poly at the ends definitely helped alot. The before and after was a noticeable difference.
We watched Enders Game, and during the battle scenes we got a nice massage from the couch. The lows are just as I hoped. The only downside (other than the silly weight of the darn thing), is less punch for music. I have Audyssey turned off because I didn't like how it boosted the mids too much (boomy) and left the lows weak. I might go with the minidsp. Somewhere between no eq and audyssey is what I'm after.
My room seems to be awesome for audio. All of my speakers sounded terrible in my basement but sound great in my family room. It must be a weird combination of size and shape.
Thanks to Steve nn for his input and anyone else who offered some advice.
I kept the pics small for the mobile users.








Sub is a dayton 315HF-4 12" with a dayton 250 amp. Denon AVR-E300.
The combination of my room and my wife dictated that I build something that would hide nicely behind our TV. My previous sub was the Pioneer 8 that matches the rest of the speakers. It did a fine job and will be relocated to the basement. It was surprisingly good for music with its 33hz tune.
This new sub is tuned to 21hz based on winisd. I do not yet have the mic to do real in room testing. It is 3/4 mdf, outside dimensions are 13.5 x 13.5 x 50.5. 3.6 internal cubic feet after sub+amp+bracing. 19" dayton 4" dual flared port. 1" dowel rod bracing. 1 additional brace was added after I took the pictures toward the top of the box where you can see the large unbraced section.
I have build numerous cabs for autos in the past but this was my first in home sub.
I also built a sonotube sub to compete against this. The sono lost. It was only 3.1cf3. The sono had a little more punch but couldn't touch the lows of the mdf box. The sono was cheaper to build and alot easier and lighter.
I used 3inch polyfil pad at both ends of the box and nothing lining the walls. The addition of the poly at the ends definitely helped alot. The before and after was a noticeable difference.
We watched Enders Game, and during the battle scenes we got a nice massage from the couch. The lows are just as I hoped. The only downside (other than the silly weight of the darn thing), is less punch for music. I have Audyssey turned off because I didn't like how it boosted the mids too much (boomy) and left the lows weak. I might go with the minidsp. Somewhere between no eq and audyssey is what I'm after.
My room seems to be awesome for audio. All of my speakers sounded terrible in my basement but sound great in my family room. It must be a weird combination of size and shape.
Thanks to Steve nn for his input and anyone else who offered some advice.
I kept the pics small for the mobile users.