is this enough heatsink

[kristopher612]

http://cgi.ebay.com/7-4-X-5-4-MASSIVE-HEATSINK-FOR-IGBT-OR-OTHER-1PC_W0QQitemZ300197541590QQihZ020QQcategoryZ66946QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
hi there.  this is my first post here.  i just wanted to know if this is enough heat sink for 2 3886 chipamps? the enclosure is an empties dual 31 band EQ so there is plenty of ventilation.  Also i'm not opposed to putting in a small fan to help if necessary.  if this isn't enough, would the 9.95 one at apexjr.com be enough for said purpose? thanks.  any help is appreciated. 
kris

[joecool85]

That eBay one would probably do for a single LM3886, but would get pretty hot.  I would suggest the $20 "gold" heatsink from apexjr if you want to do two LM3886's on one heatsink.  Although, for the price, the best solution would be two of the $9.95 apexjr heatsinks, one for each chip.