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Thread Starter 

Can anyone help me understand why one these supertubes are so differently priced.

 

http://www.ebay.com/itm/NEW-SOVTEK-6H30PI-Supertube-ARC-Conrad-Johnson-BAT-2PCS-/120748685916?pt=Vintage_Electronics_R2&hash=item1c1d2eba5c

 

http://www.ebay.com/itm/BALANCED-AUDIO-MATCHED-PAIR-6N30P-DR-6H30-Pi-SUPER-TUBES-UNUSED-1979-REFLECTOR-/160760810419?pt=Vintage_Electronics_R2&hash=item256e174bb3

 

I'm looking for potential upgrades to my Little Dot MK IVSE and am comtemplating supertubes. 

 

Thanks!