High Efficiency, Deep bass, Small a Subwoofer that Fits in a Backpack
Most people do subwoofer, and imagine most people, huge crates of huge speakers and / or exotic tubes protruding from them, when “Subwoofer”, the term is mentioned. It is a fact that to reproduce very low bass, a wide interpretation is the simplest solution. This is in the “iron Hoffman,” which says roughly that you collect can never spoke more than two of these three characteristics of a housing formulated.
1 High efficiency 2 Deep bass, 3 Small .. . In other words, the only way to get deep bass from a tiny speaker ridiculous amounts pumped vast amounts of energy in it. Each speaker manufacturers think they can circumvent this law to a certain time, and they try and fail. I do not think I get around the law, I took it and built a ridiculously small wardrobe, which produces a very satisfying amount of bass, with an efficiency inevitable, but not excessively low.
The goal was to create a truly portable sound have 5.1 Installing the combination of this machine. Having two sets of small satellite speakers and a boom box for the center Smaller conventional systems Audio 5.1 standard still a crappy subwoofer is as portable as a desktop computer. There are some small upscale mini subwoofer, but they are expensive. They rely on customized exotic driver and amplifier, the crazy energy needed to process obey the law may Hoffman.
What I wanted is an affordable subwoofer from readily available components, with 5.1 channel decoder and amplifier before, has delivered in a backpack normal size fits. In other words, the whole system must be no larger than a shoebox small. It seems impossible, but it was possible with a little luck and skill, a good dose of genius and a little compromise.