true, those silver Sansuis sold here in the '80s were hardly distributed in Japan. matindi ang Hapon sir, Sansui's top of the line Alpha series in the int'l market is always one model down compared with their domestic models. Thus, the Alpha 907 series or its equivalent, was never sold internationally, only the Alpha 707 models - re-numbered 911, etc. - were sold in the US and Europe. the few Alpha 907 in the US (Jap domestic models as in our surplus amp) are now bidded at close to $2,000 used (even the Alpha 607, at over $1,000 used). that figure is 7 times the average eBay closed-deal price for the classic Dynaco ST70, which is quite popular here.
BTW, guys, if no one gets Wanderlust's 907x-Decade until next weekend's payday, akin na yan! but i'm giving a chance for others to own it since i already have 3 Sansui TOTLs. if ever, that would be my 4th and probably my 14th amp. hirap dito sa probinsya, walang shops to audition good equipment. thus, the only option is to buy the best ones and decide which ones to hook and which ones to shelve.