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Need help in trying to trace cause of distortion

I’m trying to track down the cause of distortion which occurs in the range of about two octaves above middle C (around 1000 hz-1500 hz).  I hear it it the flute most  distinctly but it must also be there in other instruments in that range.  I’d like to determine which component is the culprit.
The equipment is fairly new except for a vintage Conrad-Johnson PV-11 preamp recently examined and Teflon recapped by the manufacturer.  I suspect it is in the GoldenEar Triton 1 speakers.
The amplifier is a Benchmark AHB2. I don’t think the other components would cause this phenomenon, so I won’t list them unless requested.  It occurs no matter what source is playing.
Otherwise the system sounds fine. Does anyone have any suspicion as to what component is causing this so I can take it for repair?
128x128rvpiano

Showing 1 response by fuzztone

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fuzztone
5,497 posts
 
I second starting with headphones for troubleshooting  That is my first goto.
If you have none I recommend 7506's
https://www.amazon.com/Sony-MDR7506-Professional-Diaphragm-Headphone/dp/B000AJIF4E/ref=sr_1_1?keywor...
Not great for extended listening (bright) but good analytical monitors.
However not recommended for dry environments.  They will static zap your ears. I switched to Focal Listen for recording after 25 years of anti-static spray in the winter.
A good enough complimentary amp is
https://www.amazon.com/Nobsound-NS-08E-Integrated-Amplifier-Headphone/dp/B014FASL1A/ref=sr_1_3?keywo...
It sounds better than my Topping TP21 and Schiit Magni 2.
Especially if you roll the tubes.
The whole sets you back $150.

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