I cannot for the life of me remember what a false speaker without a voice coil, but has the cone, and outer surround, and sometimes the inner webbing is called.
I know it’s not a real speaker, it’s just a dummy for sound reverberation, or for air flow, or more bass response. One of those, I know. But i’ve been away from audio equipment for so long, I forgot what it was called.
Can anyone help me?