You wont find any difference unless you go for a price tag more than 6k infact t3100 is better in bass than a520 !! If you want better one get edifier c2 for 3.7k but its bit weak bass but quality will be good :)
Actually i got a price quote of 3.7k for c2 from delta locally but i want this new model since old c2 has bit weak bass mine is 53w rms..i know it should probaly be around 4.8k, i paid bit extra but what to do buddy i have hard time finding these speakers in first place!!
There is no separate link dude..Currently the filter is out of stock will come after one month..Incase if you want i can pm you the owner's number..
@GhorMaanas thanks :mrgreen:
Some pics after i done the assemble still need to do some cable management..Merc alpha is as good as Gamma