I built a cab for a single ten speaker. I'm using it with a low watt tube amp for home recording and low volume stuff. I'm a jazzbo. Right now it has a Jensen C10q in it, which sounds pretty good. But who can leave well enough alone? So I'm looking for a low wattage LOW SENSITIVITY 10 inch speaker. So i think "ted weber. made in the usa, custom stuff, attention to detail" and off i go to the weber web site. So it turns out they offer several dozen ten inch speakers with ZERO technical info--no sensitivity figures, no plots, nothing but marketing speak. For example, here's the "technical info" for the "Ceramic Signature ten" "Ted Weber Signature Series speakers use all industry-standard parts and are an economical choice as a replacement speaker for low to moderate volume use. We keep stock of these speakers so they ship within a few days of ordering." And here are the technical details for the 10F15OH "Ted Weber Speakers are built with tighter, more concentric voice coil gaps, and lower carbon, machined steel parts in the magnet circuits which yield a stronger, more controlled tone at all volumes, particularly in the low end at high volumes. Ted Weber Speakers are hand-built to order, to ensure the best attention to detail is paid to your speaker. We build them one at a time, on a table - not hundreds at a time on an assembly line. This allows us to reduce the margin for error and produce an overall higher-quality speaker. Please allow 7-10 business days for your order to be built and then shipped." Hey thanks guys! That really helps! Is there any more detailed info available anywhere?