It takes very little effort to reprint some more shellow faceplates. Would be interesting to see if there's any changes.
My biggest issue adding a midbass with these speakers is keeping tweeter height from getting too high. I'm not wanting to remake or modify the woofer enclosure. A lot of effort and expensive 24mmm birch when into those.
My biggest issue adding a midbass with these speakers is keeping tweeter height from getting too high. I'm not wanting to remake or modify the woofer enclosure. A lot of effort and expensive 24mmm birch when into those.
@mikessi The 8NDL51 is perfect for use to bridge the gap between a large LF and D7608. It would allow a 700 hz HP to the SS mid dome.
The 8NDL51 has low HD in the 200 - 1k region, so there's no loss or compromise there. The only drawback to it is the motor noise, as its quite high in the lower mid area when used as an OB driver. It is after all a pro audio driver with durability designed into it for durability. If you perform my spider mod, this alleviates most of the noise and it isn't noticeable when installed in a small sealed cab.
The 8NDL51 has low HD in the 200 - 1k region, so there's no loss or compromise there. The only drawback to it is the motor noise, as its quite high in the lower mid area when used as an OB driver. It is after all a pro audio driver with durability designed into it for durability. If you perform my spider mod, this alleviates most of the noise and it isn't noticeable when installed in a small sealed cab.
The tweeter height can become an issue with a large 4 way if you stack the drivers in W-MB-M-T arrangement. Placing the midbass above the tweeter can fix this if the xover isn't too high, but its not preferable for other reasons. The woofer height is a concern, as the distance to the floor dictates the midbass hump that need to be removed with an LCR in most cases. That can become expensive with passive filters with large value components being needed.
Any mid dome in a minimal baffle enclosure like this will be more directive than on a large flat baffle. The difference in DI slope can be quite significant.