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Connect a sub to stereo system

Hi! Everyone! I am seeking advice/solution to connect a subwoofer to my stereo system. I have a preamp Adcome GTP-500II connect to CDA-250C power amp then to a pair of Klipsch R28F. I also have a Klipsch R-12SW sub, how can I connect this sub to my stereo system? 
Thank you everyone in advance.
justinpham2012
philjolet's avatar
philjolet
2,306 posts
 
I think the lab setting just by passes the tone controls and the norm has tone controls in the signal path so I agree with uberwaltz
tls49's avatar
tls49
1,351 posts
 
The difference between the two outputs is that the "lab" is direct coupled and the "norm" is capacitive coupled. I agree, use "lab" to the power amp.
justinpham2012 OP
23 posts
 
Thank you everyone for inputs. I will try it today. 
mrdecibel
3,012 posts
 
The best way to connect a sub, ime, is coming off the speaker outputs of the amp into the speaker inputs of the sub. It will be more coherent. Enjoy ! MrD.
justinpham2012 OP
23 posts
 
@ MrD ! How can I do that?

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