My first subwoofer. What to choose?

[ErikdeBest]

this was discussed in a german forum: Winding height seems to be 24 mm and 8 mm is the magnet gap height.
So up to 8 mm (1way) excursion the voice coil remains in the magnet gap.



I think you can find some posts about D165 here on diyaudio. But these drivers are probably not well known outside germany.

Thanks for bringing this up @stv !
I was looking at the D-250 for dipole use, impressed by the good price and double magnet. I also saw the discussion on the german forum regarding xmax, but I also found two different datasheets, one with 24mm winding height, and one with 34mm https://reckhorn.com/media/pdf/16/5...cher-Einbaulautsprecher-25cm8SE56OOy0hmTi.pdf

The D-200 is specified at 8mm xmax, so I think it has the 24mm height and 8mm magnet gap, and they did it wrong in the first datasheet version of the D-250. But best would be to confirm with Reckhorn, which I will do now.

 

[ErikdeBest]

Hi @stv I got a reply from Mr. Klaus Reck confirming that the D-200 has the 24mm winding height, and the D-250 has 34mm, so the +-13mm are plausible. I just saw I can get them through Amazon with free shipping to Switzerland, so I might try one to see how it performs in dipole!