I just got offered a good deal on a set of ADAM S2a monitors. I compared them to the S3a's in the demo room and I thought the S2a held up quite nicely to its bigger brother.

I havn't had the chance to hear the S2.5a but from what I understand it has a 9" cone as opposed to the 7" on the S2a. I will primarily be mixing metal and hard rock so tight accurate monitoring of the low end is a must. Do you think the S2a will stand up to this task or I need to try the s2.5a?
Cheers