i am surprised at how many 8's cabs i am reading of lately. seems there are lots out there. i am curisou as to the differences between teh eminence beta 8 and the alpha 8. i know the beta has a higher wattage rating and is 20% more expensive, but other than that, is there a significant bottom end difference? both are pretty much 75+ hz f3 speakers, arent they?> also, is there a notable difference in TONE between the 2? thank you in advance.