This sale is for a one (1) Origin Acoustics 4 x 8"  woofer. They have a very high-tech, woven Kevlar cone, with an inverted rubber surround on a metal frame. This is a 8 ohm woofer. This are the same woofers used in the Origin Acoustics Composer Collection C-69  in-wall / ceiling loudspeakers. The manufacturer claims  low frequency response to 40 Hz. They are ideal for that application, but they are also a fine choice for DIY designs of TV long loudspeaker sound bars placed below the big screen. This speaker has a anodized aluminum bullet in the center of the loudspeaker.

This unit is new, out-of-box purchased for tests and measurements. It has never been installed, and only tested on the bench.

This loudspeaker will operate well in an enclosure of very small size. Free air resonance graphs and T/S parameters on these exact units are included with the pictures above.