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Yamaha R-N 803 and A-S2200 Left Heat-Sink


GuyIsDamGood

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On 1/12/2025 at 5:42 PM, GuyIsDamGood said:

To continue the unequal warm Heat-sink issue:

Yesterday; I connected (wife's Insignia NS-B4111 CD Boombox) to the Yamaha A-S2200. I was playing music for 5 hours at 110db. The room was 59°-Fahrenheit.

I checked the temperature of the left and right heat-sinks. (they were both 88°)

I played music on the Technics SL-PD8 (compact disc player) connected to the Yamaha A-S2200 (at the same 110db volume) and the heat-sinks reached got warmer (left reached 92° and the right reached 90°).

Anyone know the reason for this?

 

those are insignificant temperature differences.  AND those temps are nothing.  why are you so concerned with this?  you definitely should be concerned with loss of hearing.

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1 hour ago, jcn3 said:

 

those are insignificant temperature differences.  AND those temps are nothing.  why are you so concerned with this?  you definitely should be concerned with loss of hearing.

 

Wondering myself, seems like there would more serious things in life to worry about.

Apparently his system is in one zip code and he listens from another zip code where the SPL is not quite so high.

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I tried this:

 

A-S2200

 

(I changed the Tone Control settings to: Flat (Bass and Treble at 50%).   While playing music (at 94db) in a 67° room; the Amplifier ran a bit cooler.   Left heat-sink 95° and right heat-sink 92° (temperature taken after 35-minutes of music-playing).

 

But; I believe I've heard some distortion.   I went back to the Tone Controls set to: Bass at 50% and Treble at max.   I know it'll run warmer at the heat-sinks; but it'll play louder.   (like many have said: "a little heat-sink warmth won't the Amplifier")

 

I'm basically done.

 

Thanks to everyone for their help and insite.

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