Maybe you could consider some Scan-Speak woofers. They often have very low resonance frequency which is necessary for your low f-3 requirement.
Here's some models to get started, too bad at least one of them seems to be discontinued:
25W/8565-01
http://www.scan-speak.dk/datasheet/archive/25w-8565-01.pdf
25W/8565-00
http://www.scan-speak.dk/datasheet/pdf/25w-8565-00.pdf
23W/4557T00
http://www.scan-speak.dk/datasheet/pdf/23w-4557t00.pdf
Here's some models to get started, too bad at least one of them seems to be discontinued:
25W/8565-01
http://www.scan-speak.dk/datasheet/archive/25w-8565-01.pdf
25W/8565-00
http://www.scan-speak.dk/datasheet/pdf/25w-8565-00.pdf
23W/4557T00
http://www.scan-speak.dk/datasheet/pdf/23w-4557t00.pdf
Thank, i will consider the three.
Bij de way:
hifisound eShop - SCAN SPEAK 25 W 8565 01 CARBON/PAPER U
Bij de way:
hifisound eShop - SCAN SPEAK 25 W 8565 01 CARBON/PAPER U
Confirming simulations here with WinISD beta 0.44 for the Scan Speak
Sealed Qtc .71, 68.9L, -3.1 DB @ 39.12 Hz.
But look at this....as the EBP is at 52.77... this splits the usage down the middle for sealed or ported.
Ported 130.2 L, Fb 22.63 Hz, F3 ? -3.06 Db@23.89 Hz, 102mm Diam, 286mm long.
The thing is, the sealed design starts a slow roll-off at 100 Hz, while the ported starts a faster roll-off at 40 Hz.
If you can cope with the larger enclosure, I would opt for the ported type.
Given that this driver has a generous 13mm of Xmax.......I would port it.
______________________________________________________Rick........
Sealed Qtc .71, 68.9L, -3.1 DB @ 39.12 Hz.
But look at this....as the EBP is at 52.77... this splits the usage down the middle for sealed or ported.
Ported 130.2 L, Fb 22.63 Hz, F3 ? -3.06 Db@23.89 Hz, 102mm Diam, 286mm long.
The thing is, the sealed design starts a slow roll-off at 100 Hz, while the ported starts a faster roll-off at 40 Hz.
If you can cope with the larger enclosure, I would opt for the ported type.
Given that this driver has a generous 13mm of Xmax.......I would port it.
______________________________________________________Rick........
Last edited:
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