120mm
Running @ 12v and recorded @ varying distances
50 db @ 28cm
After conversion the results @ 2m are as follows
33db
Running @ 7v and recorded @ varying distances
50 db @ 16cm
After conversion the results @ 2m are as follows
28db
Running @ 5v and recorded @ varying distances
50 db @ 9cm
After conversion the results @ 2m are as follows
23db
140mm
Running @ 12v and recorded @ varying distances
50 db @ 28cm
After conversion the results @ 2m are as follows
33db
Running @ 7v and recorded @ varying distances
50 db @ 22cm
After conversion the results @ 2m are as follows
31db
Running @ 5v and recorded @ varying distances
50 db @ 14cm
After conversion the results @ 2m are as follows
27db