Bored at work, fun! Would be great paired with a sonic impact t-amp. I might offer these up as a kit if I have the time...
The PA130 MTM - 102dB with 8 watts, under $90/pair
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That minimum phase modeling? Does it include box response or something? Something in the data looks weird.
CdiVine Sound - my DIY speaker designs at diVine Audio- Bottom
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Looks good! Are these simulated or actual measurements? They've got some good low end extension for smaller speakers. Is it ported?-Tyler
Under deadline pressure for the next week. If you want something, it can wait. Unless it's blind screaming paroxysmally hedonistic...- Bottom
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Originally posted by Xanderlooks fun, what are the box dimensions?
Originally posted by GirLooks good! Are these simulated or actual measurements?
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson- Bottom
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Originally posted by GirLooks good! Are these simulated or actual measurements? They've got some good low end extension for smaller speakers. Is it ported?
The use an EBS style rolloff, so the F3 is high but the extension is decent.- Bottom
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Originally posted by cjdThat minimum phase modeling? Does it include box response or something? Something in the data looks weird.- Bottom
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Did you extract miminum phase and properly set z-axis offset? If you didn't do the phase step you're going to get very different results in reality.
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Originally posted by cjdDid you extract miminum phase and properly set z-axis offset? If you didn't do the phase step you're going to get very different results in reality.- Bottom
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updated crossover
Thanks for the advice everyone! The problem was solved by very slightly lowering the xo point for the tweeter (to about 3050 from 3200), as well as adding a .025mh inductor (tiny!) in series with the shunt capacitor in the woofer's circuit. This significantly attenuates the breakup node and improves phase. +/- 2.5dB from 100hz-20khz, not bad IMO
In terms of added cost, if you use NPE caps for everything (the last one used a dayton 5% poly for the first tweeter cap), it should be exactly the same at about $95/pair including terminal cups, drivers, XO parts, and port tubes.
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Thanks max. It's hard to tell and it looked like it may have been a standard glitch in SW from files without phase data, or with PE's phase data. So I asked to be sure.
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