gaga_hifi_nutter: flow porting
gaga_hifi_nutter: glueing stage 1
gaga_hifi_nutter: glueing stage 2
gaga_hifi_nutter: glueing stage 3
gaga_hifi_nutter: horn mouth
gaga_hifi_nutter: inverted horn transmission line
gaga_hifi_nutter: 20cm_damped (Large)