smurfer77
Super Member
My ex-sansui contact says that they and their immediate contacts don't recall a 907 Extra and was very interesting for them to see Cafad actually has one. It doesn't appear to be documented on japanese sites.
The "L", in the case of x07 series, may likely have indicated LAPT according to my source.
And while he or his own contacts couldn't (yet) dig up info on the 907 Extra, they thought it likely to be a small production run (maybe 1000) due to LAPT transistor production not meeting the schedule (with the idea being to get some 907 Extras out and then abandon that when the LAPT production caught up and move over to the 907L Extra).
Well, this theory will soon be either debunked or partly validated when Cafad's amp has a service and the output transistors are inspected.
The intriguing part is that Cafad's amp doesn't have a serial number and if it never had one it is still possible that it was a prototype (however, my contact speculates that is less likely than a small production run, although it's still possible an employee took one home). Cafad's amp also has some other interesting features, such as copper looking, instead of usual black heat sinks. This all makes it look a bit 'prototype', but I do note I have now seen several alphas on japanese auction sites with copper looking (to varying degree) heatsinks; it appears that certain black treatment they used (perhaps not on all alphas) can actually come off when the heat sinks run too hot.
The "L", in the case of x07 series, may likely have indicated LAPT according to my source.
And while he or his own contacts couldn't (yet) dig up info on the 907 Extra, they thought it likely to be a small production run (maybe 1000) due to LAPT transistor production not meeting the schedule (with the idea being to get some 907 Extras out and then abandon that when the LAPT production caught up and move over to the 907L Extra).
Well, this theory will soon be either debunked or partly validated when Cafad's amp has a service and the output transistors are inspected.
The intriguing part is that Cafad's amp doesn't have a serial number and if it never had one it is still possible that it was a prototype (however, my contact speculates that is less likely than a small production run, although it's still possible an employee took one home). Cafad's amp also has some other interesting features, such as copper looking, instead of usual black heat sinks. This all makes it look a bit 'prototype', but I do note I have now seen several alphas on japanese auction sites with copper looking (to varying degree) heatsinks; it appears that certain black treatment they used (perhaps not on all alphas) can actually come off when the heat sinks run too hot.
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