Got an email about this and thought somebody around this forum might be interested.
https://www.decwareproducts.com/dfh...l_lp&cid=1d8a1881-d694-4ba4-9c7c-040564b4f676
https://www.decwareproducts.com/dfh...l_lp&cid=1d8a1881-d694-4ba4-9c7c-040564b4f676
The Silver 10s are similar and much less expensive. With a little work they are quite good.
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do these need such a large enclosure (I guess to get the full bass) or is there a smaller horn that they would work in that might also work better in small to medium sized room?
It's a bit difficult to say, since the published specs. appear to be inconsistent with themselves. Qts can't be 0.175 if the Qe and Qm values are what they are stated to be, and I can't see how the published Vas is consistent with the stated suspension compliance, B*L, Sd, Mms, Fs etc. & visa versa either. I suppose it may also depend on what you call a smaller horn too as these things can get relative. 😉
Just taking the Qt, Fs & assuming they're accurate (with the above caveat in mind & without attempting to recalculate), then with a voltage source amplifier you've a mass-corner of 526Hz, making it basically a midrange horn driver -that Q as-is is way too low for bass-horn loading as-is, since as an ROT, 250Hz - 300Hz is about the upper limit if you want to keep GD reasonable. In theory, you'd need ~6ohms of series R to just scrape the 300Hz, again with the above caveats about data inconsistency in mind, so YMMV. If we stick with all those assumptions, then in theory yes, if you're OK with potentially limited LF extension or a slightly different load scheme.
Just taking the Qt, Fs & assuming they're accurate (with the above caveat in mind & without attempting to recalculate), then with a voltage source amplifier you've a mass-corner of 526Hz, making it basically a midrange horn driver -that Q as-is is way too low for bass-horn loading as-is, since as an ROT, 250Hz - 300Hz is about the upper limit if you want to keep GD reasonable. In theory, you'd need ~6ohms of series R to just scrape the 300Hz, again with the above caveats about data inconsistency in mind, so YMMV. If we stick with all those assumptions, then in theory yes, if you're OK with potentially limited LF extension or a slightly different load scheme.
Looks inpired by his DNA which we built (👎)
The mouth is kinda small, it is likely a (poor) TL at low frequencies.
dave
Qms: 11.365
Qes: 0.108
Qts: 0.175
1/Qts=1/1/Qms+1/Qes
Qts =0.107
A REALLY low number. This driver, even with Fs as low as it is is a midTweeter.
A high output impedance might allow them to have some bass.
dave
Indeed, though with HR's help, here's the reconciled specs (assuming they're not complete 'flooby dust').......