@LBPete, regarding these units assembled in Indonesia, I'm curious (provided you know) if they are specifically marked as such (versus "Made in Japan") or if that is being inferred by the contractor marked on the T-Tag having been known to operate specifically in Indonesia. Also wondering if these units were distributed worldwide, or only in Asia/Pacific rim sales area. Would be one of the few known examples of anything Sansui made (in the "golden" era) outside of Japan. Obviously there were a few things made elsewhere even then, like the ES speakers, and later on in the 80's there was a lot of stuff made in Taiwan, and even in the US (cheap rack system speakers).Looking at the AU-7900 in the database, there are two "outliers" produced in September and February of '74 but I believe those two are errors in the reported serial number. It appears production began with a batch produced in November '75. Regular production kicked off in February '76 and continued until June '77.
Looking at the others in the AU-X600 series, the dates listed look right. As an interesting side note it looks like any of them assembled on line 55 were built by contractors in Indonesia. They were building AU-4900s in 1978 after Japanese production stopped in 1977.
- Pete
On reflection, this makes sense. Kinda similar to the way US automotive companies in that era unveiled "next year's model" in the early fall of the preceding year, e.g. model year (MY) 1978 would have been announced in third quarter of 1977...?Ah yes, I checked the other AU-x900 amp serials & production dates started Nov/Dec 1975 too.
Of course they would have to start building 1976 products before 1976
Great resource, thanks again.
This is intriguing - I had no idea Sansui built anything in Indonesia in that period. I believe some other manufacturers had production in Malaysia since the 1980s - maybe Yamaha or Technics?.... As an interesting side note it looks like any of them assembled on line 55 were built by contractors in Indonesia. They were building AU-4900s in 1978 after Japanese production stopped in 1977.
- Pete
Your AU-4900 was built on production line 83 during July of 1986. It was the 555th unit off that line that month.This is intriguing - I had no idea Sansui built anything in Indonesia in that period. I believe some other manufacturers had production in Malaysia since the 1980s - maybe Yamaha or Technics?
Given I have an AU-4900, and the proximity of Australia to Indonesia, it would be fascinating to know whether my 4900 (pic of serial attached) came from there. Based on its serial, I think mine was born in 1976?
FWIW my AU-4900 has a Sansui label citing what I assume is the head office location in Tokyo, but seems to have no "Made In Japan" label, or "Made in ...(anywhere)".
As a coincidence, I recently bought a replacement source selection pushbutton for my 4900 from a Sansui parts specialist in the US. He'd been looking out for the button for me for a while, and he sourced that part from .... Indonesia!
@ignoramustot, would you post a picture (or multiple, if needed) of the complete rear panel of the unit in question? I'm curious to see what markings there are. It would be pretty unusual for there to be no marking for country of manufacture. And if it wasn't built in Japan, there's a good chance the country of origin would've been on a sticker, rather than screen printed directly on the rear panel. There may be some other identifying mark, as a numeric or letter code, that might aid in distinguishing this version from those mare in Japan.
In case you missed - Made in Tokyo Japan 1976, Assembled in Indonesia by PT. Corona Electronics Corp.If there is any Sansui gear built by a contract manufacturer in Indonesia, I've not yet ever seen it. Not that it couldn't have (or didn't) happen, mind you. If such units do exist, I'd like to see them just to get a more complete picture of the various contract assembly arrangements Sansui made.
I don't know about the accuracy of those charts. It looks like they have an AU-4900? in place of the AU-7700More on History of Sansuis Source: "Stereo Jidai neo Vol.7" Dec 2024 (output wattage ratings mentioned seem for 4 Ohms ?). As expected AU-101 & 505 are missing.