Sounds of the night

When i was teaching High-school, one of the students in my anatomy class gave me an old, but very nice sounding, pair of Logitech speakers. The speaker had a nice, clean, but dull sound to them and the bass was nice. After using them for a few months, i became board with them. Thats when i decided to turn them into a better sounding system.





I got the idea for my project when i was at my friends house, whom just had gotten married. He had sold his previous house and decided he wanted a nice tv and sound system. So, he purchased a Yamaha sound bar from Costco. When i showed up for the guys night, i saw the sound bar, how aesthetically clean it was, fresh sound and good bass. Thats when it dawned on me... "I need to make my OWN sound bar" So, thats what i did.

I went home, immediately opened up Sketch-up pro, and created a basic sound box. From the outside, its basic, BUT it has to be a specific amount of volume in order to allow the sound to move, not resonate, through out the speaker. Basically, the air acts like a mass-spring system. As frequencies increase, the air acts like a mass on a spring, moving up and down at faster and faster rates, eventually, the mass and the spring cancel each-other out. This is what is called the drop off frequency and is based upon the volume of the box.

I calculated volume by measuring the old plastic speaker boxes. I then combined the two volumes together to get the size of sound bar i needed. I also added about 6 inches of empty space between each speaker box. You will see what i mean when you look at the photos.

Each speaker also contained a port. I designed said ports in Sketch-up as well, then 3d printed them. They worked great. I then cut all the wood pieces i needed, stained them a nice dark Jacobean color, soldered new wires onto the speakers, put it all together, added the Bluetooth adapter and tested them out. They sound WAY better than before.