What Speaker Cabs to go with Sunn 300T?

[bobman]

Hi all, Thanks for a great and very helpfull forum.
So I finally managed to save up for a Sunn 300T!!!
I run it with a Ampeg Svt 410hlf , this cab have sounded good with other heads but since i plugged in the Sunn, I have had nothing but greif.
Blown speaker, wierd dischordant frequencies etc...
Is this a know issue?
What Speaker Cab do you use to get the best sound out of this Amp?

Also what is your opinion on these?

http://cgi.ebay.co.uk/SUNN-2x15-CLASSIC-BASS-CAB-BETA-205-ENTWISTLE_W0QQitemZ7382645640QQcategoryZ58719QQrdZ1QQcmdZViewItem

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=7383089838&ru=http%3A%2F%2Fsearch.ebay.co.uk%3A80%2Fsearch%2Fsearch.dll%3Ffrom%3DR40%26satitle%3D7383089838%2509%26fvi%3D1

Thanks
Bob