Gregm, Here's how I'm isolating midranges:
1. The Seas midranges will be magnet-mounted as Linkwitz' revision would do, but with my own custom parts.I have used a piece of 4" ABS coupler (4 1/2" ID)about 4" long, mounted the magnet just inside one end of theABS (glued) with a small air gap. Then the mounting puck I inserted in the other end, just protruding, set in a bed of black silicon(filling the entire space inside the ABS), so the driver is only connected to the puck by a bed of silicon.
2. The mounting frame will be triangular in shape and sturdier than Linkwitz' design.
3. At the mounting surface at the top of the woofer baffle box, I am adding two layers of 3/4 -inch ply with shear damping inbetween the layers- microsorb , probably.
4. The mounting frame will actually be attached to a commercial damping platform which will sit on top or be attached to the baffle box.
5.The entire inside/ rear surfaces of the speaker will be covered wiyh microsorb or similar and D-flex panels.
6. Tekna-sonic vibration dampers will be attached near the woofers.
Hope this answers your question.
As an aside, I've changed my amp selection. Decided to use a McIntosh MC275 to drive the mids, and The ATI6012 for the other 6 channels. Since the Mac has input control, and the ATI has individual controls, I'm hoping the integration won't be an issue.
1. The Seas midranges will be magnet-mounted as Linkwitz' revision would do, but with my own custom parts.I have used a piece of 4" ABS coupler (4 1/2" ID)about 4" long, mounted the magnet just inside one end of theABS (glued) with a small air gap. Then the mounting puck I inserted in the other end, just protruding, set in a bed of black silicon(filling the entire space inside the ABS), so the driver is only connected to the puck by a bed of silicon.
2. The mounting frame will be triangular in shape and sturdier than Linkwitz' design.
3. At the mounting surface at the top of the woofer baffle box, I am adding two layers of 3/4 -inch ply with shear damping inbetween the layers- microsorb , probably.
4. The mounting frame will actually be attached to a commercial damping platform which will sit on top or be attached to the baffle box.
5.The entire inside/ rear surfaces of the speaker will be covered wiyh microsorb or similar and D-flex panels.
6. Tekna-sonic vibration dampers will be attached near the woofers.
Hope this answers your question.
As an aside, I've changed my amp selection. Decided to use a McIntosh MC275 to drive the mids, and The ATI6012 for the other 6 channels. Since the Mac has input control, and the ATI has individual controls, I'm hoping the integration won't be an issue.