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DIY Audio
"Box in box" speaker designs?
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<blockquote data-quote="Jeff Babcock" data-source="post: 42115" data-attributes="member: 46"><p>Re: "Box in box" speaker designs?</p><p></p><p>Hi K,</p><p>You might be able to figure out something using a 3 channel DSP powered plate amp, such as this:</p><p></p><p><a href="http://www.dsp4you.com/downloads/PWR-DSP3%20Datasheet.pdf" target="_blank">http://www.dsp4you.com/downloads/PWR-DSP3 Datasheet.pdf</a></p><p></p><p>That would give you enough power for the sort of application you describe, and plenty of DSP to save you from needing a passive crossover design. You'd have to make a powered loop out for channels 2 and 3 to the top box, but that's easy enough.</p><p></p><p>The coaxial will keep things nice and small, and there are some great sounding coax drivers available in recent years.</p><p></p><p>Re the sub, if you are planning on a 10 inch coaxial and are hoping to run the sub into higher frequencies to help support the tops, be aware that folded horn designs can start to sound poor once you get into the range well above 100Hz. It's sort of a "smearing" that happens as the frequency increases.</p><p></p><p>The Outline Kangaroo design is very cool. One challenge would be ensuring a tight seal on the area which opens and closes for storage of the top box, as a bad seal could significantly affect performance. Using a horn mouth for storage would be much simpler, but with its own caveats.</p><p></p><p>Best of luck, an interesting idea for sure. Keep us updated on your thoughts moving forward.</p><p></p><p>Jeff</p></blockquote><p></p>
[QUOTE="Jeff Babcock, post: 42115, member: 46"] Re: "Box in box" speaker designs? Hi K, You might be able to figure out something using a 3 channel DSP powered plate amp, such as this: [url]http://www.dsp4you.com/downloads/PWR-DSP3%20Datasheet.pdf[/url] That would give you enough power for the sort of application you describe, and plenty of DSP to save you from needing a passive crossover design. You'd have to make a powered loop out for channels 2 and 3 to the top box, but that's easy enough. The coaxial will keep things nice and small, and there are some great sounding coax drivers available in recent years. Re the sub, if you are planning on a 10 inch coaxial and are hoping to run the sub into higher frequencies to help support the tops, be aware that folded horn designs can start to sound poor once you get into the range well above 100Hz. It's sort of a "smearing" that happens as the frequency increases. The Outline Kangaroo design is very cool. One challenge would be ensuring a tight seal on the area which opens and closes for storage of the top box, as a bad seal could significantly affect performance. Using a horn mouth for storage would be much simpler, but with its own caveats. Best of luck, an interesting idea for sure. Keep us updated on your thoughts moving forward. Jeff [/QUOTE]
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"Box in box" speaker designs?
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