Hi Greg

While we're unable to tell you specifically which blasters work and which may not, users have generally reported success with third party blasters and 2.5 to 3.5mm adapters, yes.

You may want to use the camera trick to make sure your blasters are in fact firing - firing IR while viewing your blasters through a cell phone or digital camera will allow you to see the little white flashes of IR being fired.

This may help you better understand of it's really the blasters that aren't working or if they may need to be repositioned to better reach your device(s).

Regards,

-Sylvain