This subwoofer is made from very high quality material. The bass is tight and very accurate. I'm very satisfied with this.

Using the sub in a 0.75 cf sealed box to add foundation to my French stand mounted speakers. Love my speakers, but they need help in the low bass, and this sub seems ideal. Had been using the cheaper dayton 8" in a slightly smaller box, and it is an excellent woofer, but this sub extends lower in freq. and has more output down there. Matching a sub to quality speakers can be frustrating, and this is the 5th or 6th sub have used with the Triangle Comete speakers. Problem has been finding a sub quick enought to blend with the Triangles, which are Very fast. Both this driver and the cheaper dual v.c. 8" are able to match the speed of the speakers, but this HF4 provides more solid foundation under the Cometes......very satisfied with this high quality product.