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Bridge NAD 3155 and 2155 to drive NHT Super Zeros and Super 8 sub

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It'sthemusic

New Member
i have been using the NAD 3155 since 1987 to push so many decks, speakers,, CD players, turntables that I can barely remember all. I've thourghly enjoy the 3155 sound. Recently I came across a pair of NHT Super Zeros ( the first pair with the speaker binding posts, not the spring loded). They sounded great with the 3155. Finally with kids out of college and house I thought it'd be fun to expand this system.
I added the NHT Super 8 sub and can't tell you how much fun that is!
Thinking ro take it another step forward I acquired an NHT 2155. Here is where I need help I'm pretty sure about the idea of creating mono locks by bridging the 2 NADs. But not sure how to include sub in this system.
Any help for a music junkie who likes to play loud and dance like no one is watching would be greatly appreciated.
Thanks
 
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Once the amps are bridged you will no longer be able to use the speaker level inputs on the single sub because they probably use a common ground.

The only solution I can think of (and I also have the same NAD set), is a set of Y adapters on the PREOUT jacks. Then run RCA cables to the sub.
 
Thanks Willy I'm out of town for holidays and will give it a try when I return. It sounds like this to me- bridge the 3155 and 2155 per manual. Use the 3155 pre out to run to sub. And all should work
 
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