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New Practical Devices XM6 Amp/DAC (The Complete Review)

Apr 28, 2013 at 7:51 PM Post #529 of 557
Quote:
dryvadeum said:
Yeah, it had two buf634's installed alongside the AD8397. The device was getting really hot but reconfiguring the amp chips has rectified this.
Click to expand...

IIRC, I believe the AD8397 already has an internal buffer and the 634s shouldn't be used with it.  That's where the copper bus bars come in handy.
 
Cheers!
beerchug.gif

-HK sends
 
Apr 30, 2013 at 6:31 PM Post #531 of 557
Quote:
dryvadeum said:
Yeah, it had two buf634's installed alongside the AD8397. The device was getting really hot but reconfiguring the amp chips has rectified this.
Click to expand...

 
Quote:
hk_sends said:
IIRC, I believe the AD8397 already has an internal buffer and the 634s shouldn't be used with it.  That's where the copper bus bars come in handy.
 
Cheers!
beerchug.gif

-HK sends
Click to expand...

 
Quote:
fuzzy1969 said:
Yes, just two bus bars with AD8397, Ive got the official AD8397 installation instructions if needed.
Click to expand...

Pull the BUF634s and install the copper bus bars (make sure you follow the instructions and have things plugged into the right sockets!) with the AD8397, and that should address the heat issue (sounds like you already did).
 
Cheers!
beerchug.gif

-HK sends
 
Apr 30, 2013 at 7:01 PM Post #532 of 557
Quote:
hk_sends said:
 
 
Pull the BUF634s and install the copper bus bars (make sure you follow the instructions and have things plugged into the right sockets!) with the AD8397, and that should address the heat issue (sounds like you already did).
 
Cheers!
beerchug.gif

-HK sends
Click to expand...

Yeah, I did that. It still gets quite hot after an hour of use. Maybe around 45-50 degrees centigrade.
 
Apr 30, 2013 at 7:36 PM Post #535 of 557
Hmmm...I wonder if the battery is the problem.  I have heard some defective batteries do get awful hot during use.  You could pull the amp and battery out of the case and run it for a while then check the battery to see if it is hot.  JUST be careful about static and shorting out the electronics...
 
I hope you are able to get the issue resolved.
 
All the Best,
-HK sends
 
Apr 30, 2013 at 7:52 PM Post #536 of 557
Quote:
hk_sends said:
Hmmm...I wonder if the battery is the problem.  I have heard some defective batteries do get awful hot during use.  You could pull the amp and battery out of the case and run it for a while then check the battery to see if it is hot.  JUST be careful about static and shorting out the electronics...
 
I hope you are able to get the issue resolved.
 
All the Best,
-HK sends
Click to expand...

Yeah, I may try that. Do Practical Devices issue new batteries?
 
May 1, 2013 at 5:57 PM Post #538 of 557
I would also try a different USB cable. I found when using the short one delivered with my XM6 that it caused the unit to heat up to the level you are experiencing. After I changed cables, it only ever gets slightly warm.  
 
May 1, 2013 at 6:49 PM Post #540 of 557
Quote:
mark-sf said:
I would also try a different USB cable. I found when using the short one delivered with my XM6 that it caused the unit to heat up to the level you are experiencing. After I changed cables, it only ever gets slightly warm.  
Click to expand...

Yeah, I'll try that out. It must be the DAC drawing power from the USB too cos when I use the XM6 as just an amp it doesn't get hot at all.
 
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