I was winding a 40 mm diameter coil with 28 AWG wire for a ~ 6 ohm sub (4.2 ohm DC resistance). The coil is 25 mm tall, with 2 layers.
However, due to some misalignment I had to skip one wire width for half a turn in the middle of the second layer.
This means there is something close to half a turn less in that region.
The gap in my magnet has a depth of 5 mm, which means that there would be an average of 31.25 turns "inside" it at any time (considering the 2 layers).
So, with that part well immersed in the gap (it happens to be just above the gap at rest), the Bl factor could be 1.6% less than when this part is well outside the gap.
I know B doesn't change instantaneously in the extremes of the gap, so that should smooth things a bit. But yet I'm not sure of how much this will impact the result in the end.
Do you think there's any chance there will be audible distortion due to that?
Noting that this sub will work between 20 and 80 Hz.
Thanks!
However, due to some misalignment I had to skip one wire width for half a turn in the middle of the second layer.
This means there is something close to half a turn less in that region.
The gap in my magnet has a depth of 5 mm, which means that there would be an average of 31.25 turns "inside" it at any time (considering the 2 layers).
So, with that part well immersed in the gap (it happens to be just above the gap at rest), the Bl factor could be 1.6% less than when this part is well outside the gap.
I know B doesn't change instantaneously in the extremes of the gap, so that should smooth things a bit. But yet I'm not sure of how much this will impact the result in the end.
Do you think there's any chance there will be audible distortion due to that?
Noting that this sub will work between 20 and 80 Hz.
Thanks!
Considering it is difficult for most to detect THD of less than 10% even under controlled A/B testing, no.
