Greetings,
If I have two identical 8 ohm midrange speaker with a sensitivity of 85dB (1w/1meter) and wire them in parallel, what is the resulting combined sensitivity?
I'm trying to see if I can get a pair to be close to the sensitivity of the woofer of ~ 89dB. (I have 4 of the mids.)
Thnx.
If I have two identical 8 ohm midrange speaker with a sensitivity of 85dB (1w/1meter) and wire them in parallel, what is the resulting combined sensitivity?
I'm trying to see if I can get a pair to be close to the sensitivity of the woofer of ~ 89dB. (I have 4 of the mids.)
Thnx.
If you are referring to a sensitivity related to voltage (xx dB/2.83V), then yes, paralleling 2 identical drivers yields +6dB (+3dB for twice the surface, and another +3dB for halving the impedance).
OTOH sensitivity related to power (xx dB/1W) only provides +3dB when paralleling the same drivers.
Always try to use the db/2.83V value as this will provide the method to compare drivers with different impedance.
However one point to note is that a woofer with a 89db/2.83V sensitivity after a normal baffle step compensation will be close enough to a mid of 85db/2.83V, and you don't need to parallel the mids for sensitivity (but maybe for power handling).
Ralf
OTOH sensitivity related to power (xx dB/1W) only provides +3dB when paralleling the same drivers.
Always try to use the db/2.83V value as this will provide the method to compare drivers with different impedance.
However one point to note is that a woofer with a 89db/2.83V sensitivity after a normal baffle step compensation will be close enough to a mid of 85db/2.83V, and you don't need to parallel the mids for sensitivity (but maybe for power handling).
Ralf
