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Audio Precision Analyzer in NYC Tri-State Area?

Vear

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Does anyone own or know of anyone that has access to an Audio Precision Analyzer in the Northeast -US (preferably in the NYC Tri-State area)? I have a rare unit I'd like to have measured but due to it's excellent condition, size and weight I'm reluctant to ship it cross-country to @amirm.

Thanks
 

pozz

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I hope someone speaks up.
 
OP
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Vear

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I have 4 ap analyzers including an apx555. What is the unit you want measured?

It's a Sansui AU-X1 like the one in the link below (the tech in the video was shocked at how that X1 performed on his oscilloscope). The unit I have is in perfect physical condition and was also refurbished which is why I don't want to ship it. I've always been curious how it would perform on state of the art AP measurement equipment.

BROCHURE:
https://www.vintageshifi.com/repertoire-pdf/pdf/telecharge.php?pdf=Sansui-AU-X1-Brochure.pdf


 
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Murray A

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I'm sure this amp was a formidable performer when new and would be a decent performer now depending on the depth of restoration. It would be interesting to see a magnified and averaged residual distortion measurement at the one watt level.

That being said, looking at the build quality of the unit in the video and quality of restoration pictured, I would hesitate testing a unit like this for fear of blowing it up.
 
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Vear

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I'm sure this amp was a formidable performer when new and would be a decent performer now depending on the depth of restoration. It would be interesting to see a magnified and averaged residual distortion measurement at the one watt level.

That being said, looking at the build quality of the unit in the video and quality of restoration pictured, I would hesitate testing a unit like this for fear of blowing it up.

Thanks for the reply.

My unit was one of the later models with the revised phono board that supposedly took care of the oscillation issues in earlier models. Even though it was operational, very clean and unmolested internally when I purchased it over four years ago I had it refurbished as a precautionary measure, ~300 components were replaced with high quality modern equivalents. Since then I have been using it almost daily without a hitch. I recently checked the Bias & DC offset and everything was spot on.

I also purchased a full NOS set of the almost unobtainium high speed Sanken outputs (2SA1068 & 2SC2493) as a back-up just in case.

I imagine it would survive a test OK as long as it's done within reason. I recently saw a test report here that @amirm did on an even older Yamaha A-1 Integrated that appeared to still have many of it's original caps and I believe it survived the AP testing.

This X1 is one of the quietest amps I've had in here and it sounds wonderful. I've had it driving B&W 805D2s and it sounds excellent. The presentation is very similar to that of my Benchmark AHB2.

Maybe someone else in the NYC tri-state area can test it for this site. It would be interesting to see how far they really pushed the envelope with this amp.
 
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