Just grist for the mill. DH Labs is coming out with a new version of the Golden Flutes and they will be available for the Thiel 1.5s. This seems to be a good way to get a little more extension out of your Thiels without having to resort to a sub. BTW, I am also using a Bryston BP60R with the Thiel 1.5s. Just as an aside, I just changed my interconnect between my CD player (Sony DVP9000ES) and my Bryston to the Silver Audio Jetstream and I couldn't believe how much more bass extension and definition I got. I also put on a set of Audio Points which fit the holes on the bottom perfectly and the bass extension improved again with greater focus and clarity in the midrange. Hope that helps. Steve