They were the "Wave 8".
A friend had a pair that he liked (tested a batch of Svetlana 6BM8’s purchased for them).
He never brought the amps up from Palm Springs (I live in the Los Angeles are) so never heard them.
If you are in the market for something "like" that perhaps look @ the little Musical Paradise stereo amp that is around $500/shipped from a US or Canadian dealer.
It has a volume pot, two sets of RCA inputs and accepts a wide range of tubes for tube rolling (unlike the 8’s).
There is also a small (well reviewed) Jolida/Black Ice EL84 based amp for $100-$200 more.
Used Wave 8’s ended up selling in the $300-$400+ range last I looked years ago.
DeKay