Arc Acoustics
Member
Thank you for another fiddly tracing.
One thing I noticed is, Perlisten S/R4"s" is an on-wall type loudspeaker for THX certification, thereby the measurement is half-space.
(Strictly speaking, I do not see the interference caused by the back wall, so the measurement would be full-space and just ditch the rear hemisphere I guess.)
I'm not sure handling full-space measurement and half-space measurement in the same criterion is the right thing to do because I could not find the post-processing method in ANSI/CTA-2034-A.
(They might use the VituixCAD and if you use the half-space (in the option), VituixCAD will return hor+/-90° as the ER_Rear because they are the only component of the ER_Rear in the frontal hemisphere.)
It should have very similar characteristics (except for the bass) to the S/R4"b", and they have (both measured by Perlisten) so it may be not a big deal.
https://pierreaubert.github.io/spinorama/speakers/Perlisten%20s4s/Perlisten/index_vendor.html
One thing I noticed is, Perlisten S/R4"s" is an on-wall type loudspeaker for THX certification, thereby the measurement is half-space.
(Strictly speaking, I do not see the interference caused by the back wall, so the measurement would be full-space and just ditch the rear hemisphere I guess.)
I'm not sure handling full-space measurement and half-space measurement in the same criterion is the right thing to do because I could not find the post-processing method in ANSI/CTA-2034-A.
(They might use the VituixCAD and if you use the half-space (in the option), VituixCAD will return hor+/-90° as the ER_Rear because they are the only component of the ER_Rear in the frontal hemisphere.)
It should have very similar characteristics (except for the bass) to the S/R4"b", and they have (both measured by Perlisten) so it may be not a big deal.
https://pierreaubert.github.io/spinorama/speakers/Perlisten%20s4s/Perlisten/index_vendor.html