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NAD M3 Master Series Amp

I'm using a M3 in my home system as a 2ch. amp for critical music listening. I use the same L&R speakers also in a Home Theater setup using a Onkyo Receiver. Unfortunately I have to switch speaker wires each time I decide to listen to stereo music or watch movies because the sound from the Receiver on 2ch music is not that great, even bi-amped.

The M3 does not have a HT bypass. I've heard there is a simple way to upgrade this amp for bypass but I can't find any information on where or how to do it. Anyone have any information?

Thanks in advance,

steve
stevizzy
willland's avatar
willland
846 posts
 
Yes there is. Niles makes a couple of products that will do just what you want.

http://www.nilesaudio.com/product.php?prodID=DPS-1&recordID=Source%20Switching%20Systems&categoryID=Switching%20Systems&prdcdID=FG00003

http://www.nilesaudio.com/product.php?prodID=SPK-1&recordID=Automated+Switching+Systems&categoryID=Switching+Systems&prdcdID=FG00240

Bill
bill_k
880 posts
 
I believe that there is a factory provided firmware upgrade for the NAD M3 which converts one of the existing inputs into a HT bypass. Contact NAD directly or your NAD dealer for details on how this can be done.
willland's avatar
willland
846 posts
 
09-22-13: Bill_k
"I believe that there is a factory provided firmware upgrade for the NAD M3 which converts one of the existing inputs into a HT bypass. Contact NAD directly or your NAD dealer for details on how this can be done."

If true, that would be awesome.

Bill
dtc's avatar
dtc
1,047 posts
 
You can set up your M3 to simulate HT bypass. Just plug your L/R from the Onkyo into any line level input and then set the volume level of the M3 to a reproducible setting that matches the Onkyo volume levels. You will probably have to play with both the M3 volumn control and the Onkyo volume adjusts, but once set all you have to do is set the M3 to the reproducible volume setting when you want to do HT. I think the M3 has a digital volume readout, so setting the volume reproducible should be easy.
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