Mackie HD1531 Replacement Woofer

Hi,

I have a pair of Mackie HD1531 woofers that are broken that I want to replace. Does anyone have a woofer to recommend or can someone recommend someone who can help find a good replacement for these woofers.
Is there something I should think about when switching? I have a total of 4 that I use at the same time and therefore I want as similar a sound as possible. The original woofer is not available.

Henrik