Originally Posted by DanDan
If the only difference is LF extension I recommend getting the 8 inch. The only distance situation I am aware of is with very large devices, e.g. big 3 way ones with the drivers not close together. Obviously if you place your ear next to the tweeter, it will predominate. The radiation patterns of the bands need distance to become coherent. In the OP case I can't see this applying.
I agree with this 100 percent. Speakers that can play to lower frequencies are always better than speakers that can't, other than the exception for really large speakers Dan mentioned. I sometimes see people recommend speakers with little low frequency extension for use in small rooms, but that makes no sense. Sure, you won't have peaks and nulls and ringing at those very low frequencies, but you won't be able to mix very well either. It's like sticking your head in the sand. The LF content is still present in your mixes, but you have no way to assess it.
--Ethan The Acoustic Treatment Experts