Referring to the cut-out attachment you can see that the tweeter and upper two low frequency drivers (which are in series in the schematics) are in an enclosed box. This acts like a two-way speaker with the two low frequency drivers handling all frequencies below the hand-off to the tweeter (around 2300Hz). However this design rolls off the low end frequencies so the lower two, ported drivers (in parallel in the schematic) are low passed at 200 Hz and add, assist,boost the frequencies below 200Hz that are generated by the enclosed box drivers. These are what I call the bass-boost (You can look up baffle-step correction).
This configuration is often referred to as a 2.5-way speaker design.
As far as components go the sky is the limit. The tweeter cap is the most important as it is the only cap in the signal path. You can see many discussions in this thread, from years ago, centered on different audio characteristics of various tweeter cap manufacturers. I used Mundorf, relatively more expensive but not as pricey as you can go, and you only need two. For resistors I used metal-oxide (MOX) and moved from 7watt to 10watt.
Keep an eye on component size. All my replacement components were physically larger than the originals which required modification of the physical crossover to make everything fit.
If by lining you mean the (minimal) interior acoustic absorption material that Mission originally installed then no I did nothing there. Perhaps another day.
This configuration is often referred to as a 2.5-way speaker design.
As far as components go the sky is the limit. The tweeter cap is the most important as it is the only cap in the signal path. You can see many discussions in this thread, from years ago, centered on different audio characteristics of various tweeter cap manufacturers. I used Mundorf, relatively more expensive but not as pricey as you can go, and you only need two. For resistors I used metal-oxide (MOX) and moved from 7watt to 10watt.
Keep an eye on component size. All my replacement components were physically larger than the originals which required modification of the physical crossover to make everything fit.
If by lining you mean the (minimal) interior acoustic absorption material that Mission originally installed then no I did nothing there. Perhaps another day.
