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Just asking some questions on behalf of dad, who's Sansui AU-4900 has just started playing up today.
After having it play today, it suddenly cut off and wouldn't come on no matter what we tried. After 30 minutes or so it would turn on but we wouldn't hear the "click" it usually makes, so it looked like it stayed in protection mode possibly.
Then after a longer time period (couple hours) it would start playing fine again and then a quiet "roaring" sound came out of the left speaker and then 20 seconds later the amp cut off again. Speakers are fine (tried with another amp afterwards).
Just a few queries (on behalf of the old man):
1. What could it be ? I know it's best to get a tech to look at it but just an idea.
2. Any recommendations for a Sansui guru that could help fix/service it in Melbourne? I saw some old threads with a couple recommendations but wanted to ask in case there's been any updates in terms of recommended Melbourne Sansui repairers.
3. If it's capacitors that might need replacing, what are the recommended replacements for the AU-4900 capacitors? Or are the originals still available (Panasonics?)
Any advice/recommendations greatly appreciated
Cheers in advance! Sean
Rad sounding Sansui pre & power amp.
heaps of inputs including phono
The only strange thing is the power level meters dont flash. Just the bottom ones come on as per photo. Not sure why.
Otherwise in great working order.
Very powerful and brilliant sound.
Even has a processor/effects loop.
Can hook up for a listen.
Item:higher end Sansui amp - Alpha Range, 717 - anything around 80w
Price Range: $600 but depends
Item Condition: New or Used
Just looking to upgrade the AU-217 to something more high end.
Alpha range / DR
Bigger AU series (517, 717, 999)
Late 70's / Early 80's. Not interested in the valve sound (101 style) or 90's onwards.
Prefer Melbourne, but consider interstate / postage.
Price is flexible, particularly downwards
Thanks - found 'as-new' Sansui 417 for the right price. Now have a decent 30 y/o amp to power my decent 30 y/o speakers.
I can't afford equipment in this era yet ...
I've had a Sansui 1000X receiver for a year or so and it has a long standing "white noise/hiss" problem in one channel, this occurs all the time even when the volume is turned right down.
I recently linked the Sansui 1000X pre-amp out into the main in of another amp and it sounded great - no hiss whatsoever.
I am now thinking of repairing the amp, I assume a re-cap of the main amp board(s) rather than pre amp is in order but I was just wondering if there could be another cause. I don't know much but read somewhere that the output transistors could also be a problem.
Would anyone out there have an informed opinion on this.