Hi
In my far field measurement is see a rise in amplitude at about 400hz. (attached)
The baffle dimensions are H:50cm; W:18cm.
if it is a baffle step, it is to late in frequency by 200hz according to the calculation.
F statr = (c/baffle width)/8
What do you think?
Driver: DSA135*8 5"
measurement distances are 1m and 20mm.
Pink is the near field. Orange if the far field.
Thanks
Ran
In my far field measurement is see a rise in amplitude at about 400hz. (attached)
The baffle dimensions are H:50cm; W:18cm.
if it is a baffle step, it is to late in frequency by 200hz according to the calculation.
F statr = (c/baffle width)/8
What do you think?
Driver: DSA135*8 5"
measurement distances are 1m and 20mm.
Pink is the near field. Orange if the far field.
Thanks
Ran
Attachments
Last edited:
F3(-3dB)=115/0.18m
F3(-3dB)=639Hz
It looks spot on to me. Lower the nearfield measurement to overlap the 200-300Hz region to far field and you are getting pretty good aproximation of anechoic performance of midwoofer (without port output though).
F3(-3dB)=639Hz
It looks spot on to me. Lower the nearfield measurement to overlap the 200-300Hz region to far field and you are getting pretty good aproximation of anechoic performance of midwoofer (without port output though).
Last edited: