Have a couple days before work resumes and I just cannot sit around the house doing much more than nothing. A cold front just came through so fishing is going to be slow for a while, not to mention the drop in temperature and how much colder it is sitting in a boat out on the water. Have some roofing to do but materiel will not be here till Friday. Since the Sadies are pretty much buttoned up, what better to do than start another build.
Time to use up some stock of the Audible Physics 6.5" woofer, better known as the MCM buyout part# 55-5615 or the 635-cp2. Both @isaeagle4031
; and @jr@mac
have used this woofer with good results. Wanted this as a large bookshelf but realized at the size I wanted to build I would also need to build new speaker stands to have the tweeter at the right height. Nah. So it becomes a floor-stander.
The drawing is out in the shed so I'll post dimensions later. It will be 1ft³ ported with tuning from 39 to 42hz with an F³ of 34-36hz. With a 2.5" port, noise might be an issue so the port will probably be on the back, or if there is enough 3" pvc laying around, the port may find its way onto the front baffle. The front baffle is two layers of .75" mdf.
One reason for ported is that I did not want it to be a direct copy of Chucks MLTL design (not sure what JR did with the Mortimor design).
Have not decided on the tweeter yet. Others seem to like it but Ben seems to somewhat dislike the sb19st-coo-r and that is the one originally slated for this project. Other than the sb19st, there are a pair of rst28a&f (still have to do the Ben mod) and several Peerless xt19td00-04 laying around here. PE has the 2" mid on special again so I will probably be placing an order soon and adding another tweeter to the order is a nobrainer. You know, I do seem to have an affinity to the xt25tg30 and they have this xt25bg30 that looks very tempting ...
Finally got boy to put down the controller and help on a build. Out of a full sheet of .75" mdf, we had about 10" left over. The baffles are drying as we speak.
Somebody mentioned, was it sand or salt, to help keep the wood from sliding while clamping?