Edited by bossobass - 5/20/13 at 10:26am
Not so in my case, although the Lab clones I've tried are from a year ago. All of mine used 60 cfm Sunon fans. I'm not aware that it gets any better than that as far as amp cooling fans goes.
As my Chinese friends love to say "Is top quality, so you not worry!". But, as not will attest to, the Chinese also love to change parts specs and manufacturers with no notice, including a recent switcharoo done on thousands of Harman products to black market components (according to a reliable source), so I don't know what Sanway is selling these days as far as what fans are being used.