I was browsing through a few DIY forums, peaking through other enthusiast’s projects in the galleries when I instantly became attracted to the idea of constructing my own, inexpensive subwoofer. Already convinced of buying a sub for the main system, I decided to build this for the computer rig. I immediately set my budget at $200 in parts, and then began the design work.
The challenge was to create a small sub that is able to fit in a tight space, yet still maintain incredible output, clarity, and depth. I ended up with a cylinder sub that stands no higher than 19 inches high, and 12 inches wide (the tube itself). In contrast to most cylinders, this one is sealed, with an upward firing woofer. Un-conventional to say the least, as I have never seen a sub quite like this one before. After all the parts (see below) were ordered, it was time to build it. What should have been a weekend project, turned out to take a month and a half. Alas, she is finally complete.
With nervous anticipation, I hooked her up to the amp and selected some tunes to play. In short, I am completely humbled by its performance. Even throwing out bias, this thing is a dream musically, far surpassing the performance of the HSU STF-2. It also digs a bit deeper than the STF-2, which surprised me considering its small design. Running a few basic sine waves, I noticed it to drop off (rather abruptly) at 23-22 hz. Tight, balanced, accurate… no matter what you throw at it. Color me bias, but it is performing exactly how I thought it would have.
Now, not everything is gold and sunshine, as she takes a lot more power to sing than I had anticipated, even considering the sealed design. She is also not well suited for movies, at least not on the PC. She just doesn’t have that rumbling authority. Then again, I can only pump out 80 db from the mains at full volume for DVD’s on the PC. Thankfully, theater is not its intended goal.
Little Thunder is a huge success in the eyes of this maker. She belts out the lows, keeps amazing pace, has personality, and can shake the room (albeit not the house). Construction is over-all modest at best. She would never take the markets by storm, but for this 22 year old – she does the trick.
Concrete tube from Lowes
Pass and Seymore Banana plugs
Typical 16 gauge wire
Layered Pine (or was that oak, dammit its late)
Dayton 10’’ Sheilded Driver
200w Class A/B Plate Amp
Thanks for looking!
Below are some pics.