Im wanting to build a dipole sub to learn about them some more, i have 2 8" woofers lying around, just wondering how i would go about designing a dipole subwoofer ?
Here are the specs, i dont know if theyll be any good for a dipole design :
-Speaker size:200mm(8inch)
-Nominal impedance:4 ohms
-Power rating:100WRMS
-Sensitivity at 1W@1m:88.35db
-Voice coil resistance (Re):3.5 Ohms
-Resonant frequency (Fs):35.71 Hz
-Mechanical Q factor (Qms):2.408
-Electrical Q factor (Qes):0.457
-Total Q factor (Qts):0.384
-Equivalent volume (Vas):42.87Lt
-Voice Coil Diameter:35mm
-X max:5mm
-Magnet Diameter:120mm
-Magnet Height:40mm
Thanks
Here are the specs, i dont know if theyll be any good for a dipole design :
-Speaker size:200mm(8inch)
-Nominal impedance:4 ohms
-Power rating:100WRMS
-Sensitivity at 1W@1m:88.35db
-Voice coil resistance (Re):3.5 Ohms
-Resonant frequency (Fs):35.71 Hz
-Mechanical Q factor (Qms):2.408
-Electrical Q factor (Qes):0.457
-Total Q factor (Qts):0.384
-Equivalent volume (Vas):42.87Lt
-Voice Coil Diameter:35mm
-X max:5mm
-Magnet Diameter:120mm
-Magnet Height:40mm
Thanks
I don't think they'd be ideal for a dipole sub. For a dipole you need to move air, which means a combination of cone area and xmax.
I use a pair of 8 inch drivers with 6mm xmax as my midranges down to 100Hz. For bass I use 2 12 inchers a side with 15mm xmax and I'd like even more.
Steve
I use a pair of 8 inch drivers with 6mm xmax as my midranges down to 100Hz. For bass I use 2 12 inchers a side with 15mm xmax and I'd like even more.
Steve
I recently made a an experiment with some extra stuff.
It consists of 3 8" woofers a MDF shelf (48x12x0.75) and a plate amp.
Chances are VERY high that my drivers suck compared to yours, as mine are Radio Shack variety. They are configured to run at 8 ohms and I have to turn the gain up alot more than my single 12" woofer in a sonotube. Also I had to turn the XO way down because, I think, the Fs was so high that the midrange wanted to come out alot more than the low notes.
However aside from that I was very pleased. These are paired with Magnepan MMG's and the bass was very similar to that of the maggies. It could move air, but it was not boomy. It's like the bass only gets boomy if it was absolutely recorded that way.
Also like the maggies they have to be about 3 feet out to sound good. And they didn't move as much as I thought they would..as far as Xmax travel...its a 75 watt plate amp from an Atlantic Tech sub.
I will probably upgrade this to 4 12" dayton woofers. Because as previouslt mentioned...you gotta move air.
It consists of 3 8" woofers a MDF shelf (48x12x0.75) and a plate amp.
Chances are VERY high that my drivers suck compared to yours, as mine are Radio Shack variety. They are configured to run at 8 ohms and I have to turn the gain up alot more than my single 12" woofer in a sonotube. Also I had to turn the XO way down because, I think, the Fs was so high that the midrange wanted to come out alot more than the low notes.
However aside from that I was very pleased. These are paired with Magnepan MMG's and the bass was very similar to that of the maggies. It could move air, but it was not boomy. It's like the bass only gets boomy if it was absolutely recorded that way.
Also like the maggies they have to be about 3 feet out to sound good. And they didn't move as much as I thought they would..as far as Xmax travel...its a 75 watt plate amp from an Atlantic Tech sub.
I will probably upgrade this to 4 12" dayton woofers. Because as previouslt mentioned...you gotta move air.
these are pretty good drivers, descent xmax, low fs, they can move ALOT of air for their size, in a ported box i used to have they could shake the cupboards on other side of house 😛
But im looking for quality rather than spl now, so i heard dipole is the way to go 😛
But im looking for quality rather than spl now, so i heard dipole is the way to go 😛
- Status
- Not open for further replies.