These sound like early version VK-60's, the fuses (one for each output tube) should been upgraded to 3A from 2.5A, as recommended by BAT. This would keep them from blowing when listening at high volume sessions.
I would have sent them to BAT, & saved $700.00!!!
Non-original owner or not, even if they are 8 years old, BAT may have upgraded them for free. They are pretty easy to deal with, & I would have called Geoffery Poor @ BAT first. They may have gone through them with a fine tooth comb & done all the upgrades for just the shipping expenses. There where many upgrades done between the 60, 60i, & 60se
Now that they have been Fondled by an Audio Repair Specialist, you may have to take them Mr. Goodwrench should any other problems arise???
That's just My Opinion, & GOOD LUCK w/ Them!!!
I would have sent them to BAT, & saved $700.00!!!
Non-original owner or not, even if they are 8 years old, BAT may have upgraded them for free. They are pretty easy to deal with, & I would have called Geoffery Poor @ BAT first. They may have gone through them with a fine tooth comb & done all the upgrades for just the shipping expenses. There where many upgrades done between the 60, 60i, & 60se
Now that they have been Fondled by an Audio Repair Specialist, you may have to take them Mr. Goodwrench should any other problems arise???
That's just My Opinion, & GOOD LUCK w/ Them!!!