For this project, I used the analog inputs because they are easier to design around. Their biggest advantage is that they accept a digital input and can be used for multi-channel sorround sound. Front baffle: 1/2" thick MDF (Home Depot)ĭigital Signal Processors (DSPs) are widely used in most modern consumer soundbars.Enclosure: 1/2" thick plywood (Home Depot).Amplifier 2 (feeding woofers): Sure Electronics Jab3-250.Amplifier 1 (feeding tweeters): Dayton Audio Kab-215. Passive Radiators (x4): Dayton Audio ND90-PR.Sure offers a not so stellar one for $20, otherwise a more expensive version from Analog Devices can be used. A separate USBi programmer is needed to download the SigmaStudio program on to the processor. The DSP amp uses the ADAU1701 processor which is configurable using Analog Devices SigmaStudio (free software). One of the amplifiers has a built-in programmable Digital Signal Processor (DSP) which I use to create 2-way crossovers, custom EQs, and add dynamic bass boost. The soundbar has 2 channels (stereo), 2 amplifiers, 2 tweeters, 2 woofers, and 4 passive radiators to help boost low frequencies in this small cabinet. Building a modern looking soundbar from 1/2" thick kerf-bent plywood.
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