Dipole H/W frame using 15" drivers

[theAnonymous1]

Originally posted by navin
one popular OB 15" woofer (Hawthorne's Augie 15) has a Qts 0.92!

That driver has a high Qts due to the fact it is intended to be mounted on a narrow flat baffle; not in a W, N, or H config.

To help quiet the pole piece "chuffing" of my 15" dipoles I simply cut off the dust caps. Even without the dust caps the pole piece never gets above room temp, so they don't need the forced cooling.

[ashok]

Has anyone tried a W dipole sub with two 10 inch drivers ?
Any point building one . Would it be able to play loud enough ( 105db)? I have two old Pioneer carbon fiber 10 ich woofers. I don't have any use for them. Q is about 0.5 and Fs is about 37 Hz.

[mashaffer]

Also note that the Dayton DVC 15" can be had for about the same money as the IB and you can use resistive loading on the second voice coil to adjust the Q and decide for yourself what sounds best to you.

mike

[moray james]

the small additional price and minimal increase in size go with two peerless SLS 12 drivers.

[Rudolf]

Originally posted by ashok
Has anyone tried a W dipole sub with two 10 inch drivers ?
Any point building one . Would it be able to play loud enough ( 105db)? I have two old Pioneer carbon fiber 10 ich woofers. I don't have any use for them. Q is about 0.5 and Fs is about 37 Hz.

I built two M-frames with two Visaton W 250 in each. They are nice in a 5x4 m room for decent levels, but no way would they do 105 dB. And that´s four of them.

[tinitus]

105db sub ? are you sure you want that, if so I dont think its small dipole you want, but more like a BIG PA woofer with low Fs or maybe even better a line source sub

[tinitus]

10" pioneer ? it sounds like an ordinary woofer with small magnet, thus no sub driver, so its best suited as an ordinary midwoofer in 3way setup up to 300hz, ordinary dipole may be fine, just dont expect a lot of deep bass, for that you will need yet another woofer