In Reply to: RE: Are your main speakers already hooked up to the NAD 3020?? posted by Deboozy on November 6, 2016 at 19:46:36:
experience with older HSU Research subs and older Velodyne subs.The NAD 3020 is only rated for 20 Watts continuous power at 8 ohms. Adding a passive subwoofer(no internal amp) to the outputs will drop below that 8 ohm limit. The 3020 has the capability to have momentary output power peaks down to 72 watts at 2 ohms, but I believe a sub with dance music will be demanding continuous high power output and not just peak power output.
If your sub is powered and has high level(speaker wire) inputs, then you could do as you stated with both main speaker and sub speaker wire hooked up to the NAD speaker terminals. The only problem with the NAD 3020 is the speaker terminals themselves. I am not sure if there is room for two sets of wires in the small holes of the 3020 terminals. You would have to put both wires into a crimp type connector,then insert that connector into the 3020 speaker terminal.
Another possible option with the NAD 3020 and a powered sub with low level inputs(RCA type) would be to first remove the U shaped connectors at the back that connect Pre Out to Lab In or Normal In. Then place a RCA male to female Y cord into both channel Pre Outs. Connect a short RCA cord to one side of each Y cord and connect it to the the appropriate channel Lab In or Normal In on the NAD. Then run RCA cords from the other side of the Y cords to the sub. Most powered subs have only one low level input, so you will need another female to male Y cord to handle the two RCA cords coming from the NAD 3020.
Lastly, if you don't want your Linn speakers(not sure which ones you have) to operate full range, then you will have to use the external crossover method I originally described. Most subs only have crossovers that pass low frequencies to the sub amp and do nothing to pass only the higher frequencies to the main speakers. An external crossover divides the low frequencies from the higher frequencies and sends them to the appropriate speakers( main or satellite speakers and the sub speaker). The external crossover should allow you to adjust the crossover frequency as well.
If anyone sees mistakes here, please chime in.
Edits: 11/07/16
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Follow Ups
- I will have to refer to others for subwoofer suggestions, as I only have - alaskahiatt 23:10:47 11/06/16 (1)
- You're welcome. - alaskahiatt 00:30:51 11/11/16 (0)