[IBJanky]

I may be mistaken, but I don't think you will be able to use the UM version, because the speaker covers on those are not removable.

The regular non-UM version have removable covers.

Double check before you purchase.

 

[sthxc83]

I'm not sure where you found that $225 price tag, but...
http://www.amazon.com/gp/product/B001C3P6FI/ref=s9_simh_gw_p422_d0_i7?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=0BFBTKRB3H4NT93MKHTJ&pf_rd_t=101&pf_rd_p=1688200382&pf_rd_i=507846

 

[sthxc83]

It was for the "UM" model.

But as I have found out they are not the correct ones.

Scroll down to the Q&A section. There is a buyer that indicated the grill can be removed.

 

[sthxc83]

I don't see how this is so confusing. The link I sent you is for the 651 (non-um) model and the grill can be removed. They are the "right" ones.