DVC sub, one coil to amp, other coil to a variable resistor?
05-11-2009, 11:48 PM
#1
0 Watt CAFz'r
Thread Starter
Join Date: Apr 2009
Posts: 3
DVC sub, one coil to amp, other coil to a variable resistor?
Well I read about this long ago, am now wondering if anybody is doing this.
Take a DVC sub and power one coil normally with the amp, but then take a variable resistor (not sure of value/wattage) and wire it to the second coil. This will make the sub "tighter" if I remember correctly.... anybody know about this?
Take a DVC sub and power one coil normally with the amp, but then take a variable resistor (not sure of value/wattage) and wire it to the second coil. This will make the sub "tighter" if I remember correctly.... anybody know about this?
05-12-2009, 05:09 PM
#2
Yankee
Join Date: Oct 2003
Posts: 3,599
Well I read about this long ago, am now wondering if anybody is doing this.
Take a DVC sub and power one coil normally with the amp, but then take a variable resistor (not sure of value/wattage) and wire it to the second coil. This will make the sub "tighter" if I remember correctly.... anybody know about this?
Take a DVC sub and power one coil normally with the amp, but then take a variable resistor (not sure of value/wattage) and wire it to the second coil. This will make the sub "tighter" if I remember correctly.... anybody know about this?
05-12-2009, 07:21 PM
#3
0 Watt CAFz'r
Thread Starter
Join Date: Apr 2009
Posts: 3
Alright I am getting Googles help here...... certainly took me long enough to find anything! Ill post it here so you can see what I am talking about.
http://www.adireaudio.com/Files/RDOOperation.pdf
Will not work for me considering I have a ported box, Sealed or infinite baffle only.
http://www.adireaudio.com/Files/RDOOperation.pdf
Will not work for me considering I have a ported box, Sealed or infinite baffle only.
05-13-2009, 11:05 PM
#5
Well I read about this long ago, am now wondering if anybody is doing this.
Take a DVC sub and power one coil normally with the amp, but then take a variable resistor (not sure of value/wattage) and wire it to the second coil. This will make the sub "tighter" if I remember correctly.... anybody know about this?
Take a DVC sub and power one coil normally with the amp, but then take a variable resistor (not sure of value/wattage) and wire it to the second coil. This will make the sub "tighter" if I remember correctly.... anybody know about this?
If only one coil is hooked to the amp, it doesnt matter what you do with the other coil, you should be able to dead short the fu#cker and it wouldnt matter, its not hooked to anything.
Or am i missing something? like parasitic inductance/capacitance etc.
05-13-2009, 11:37 PM
#6
0 Watt CAFz'r
Thread Starter
Join Date: Apr 2009
Posts: 3
The second coil is actually producing current when the cone is moving. If you put a small load on it it will slow the cone down a bit, if you put a large load on it will slow the cone down a lot. That's what I understand from this in the simplest terms.
05-15-2009, 12:28 AM
#7
Yankee
Join Date: Oct 2003
Posts: 3,599
I find it interesting, brilliant and idiotic
interesting since it is a way to actively alter the performance of a driver that is not prone to behavior modification
This is brilliant in that it is a great way to adjust damping and the overall Q on the fly & you can alter resonance points of the driver
it is idiotic in that it ADDS distortion and it is my opinion that buying the right driver with a good operational characteristics is a better way of doing this
still it could make the wrong driver behave acceptably with reduced efficiency and increased distortion
interesting since it is a way to actively alter the performance of a driver that is not prone to behavior modification
This is brilliant in that it is a great way to adjust damping and the overall Q on the fly & you can alter resonance points of the driver
it is idiotic in that it ADDS distortion and it is my opinion that buying the right driver with a good operational characteristics is a better way of doing this
still it could make the wrong driver behave acceptably with reduced efficiency and increased distortion
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