Not specific to your NAD:
Any equalizer gets inserted in any loop prior to amp, simply add 1 set of cables. Where?
Considerations.
Sub hookup:
a. remove the low bass job away from amp and mains. IOW, don't just add extra bass to small bass shy mains.
Preamp out, to adjustable crossover, to self-powered sub. only low bass to sub, remaining frequencies back to amp to speakers. That takes the demand for low bass out of the amp and out of the main speakers, allows lower powered amps, especially lower powered tube amps (significantly reducing amp price/size/heat/increasing placement options)
eliminates distorted low bass from mains
Equalizer:
After Sub?
Equalize after bass is stripped out, IOW, out of sub, to equalizer, to amp, thus adjusting only frequencies to mains, still able to adjust crossover at sub.
Everything prior to sub? Preamp to equalizer to sub,s crossover, low bass to sub, other frequencies to amp to speakers.
............................
Your NAD, preamp 1, preamp 2, built in crossover, bi-amp, zone 2, OMG
holy crap, read this 21 times, then ask them for help!!!
https://nadelectronics.com/wp-content/uploads/2017/02/M3ENG.pdf
Any equalizer gets inserted in any loop prior to amp, simply add 1 set of cables. Where?
Considerations.
Sub hookup:
a. remove the low bass job away from amp and mains. IOW, don't just add extra bass to small bass shy mains.
Preamp out, to adjustable crossover, to self-powered sub. only low bass to sub, remaining frequencies back to amp to speakers. That takes the demand for low bass out of the amp and out of the main speakers, allows lower powered amps, especially lower powered tube amps (significantly reducing amp price/size/heat/increasing placement options)
eliminates distorted low bass from mains
Equalizer:
After Sub?
Equalize after bass is stripped out, IOW, out of sub, to equalizer, to amp, thus adjusting only frequencies to mains, still able to adjust crossover at sub.
Everything prior to sub? Preamp to equalizer to sub,s crossover, low bass to sub, other frequencies to amp to speakers.
............................
Your NAD, preamp 1, preamp 2, built in crossover, bi-amp, zone 2, OMG
holy crap, read this 21 times, then ask them for help!!!
https://nadelectronics.com/wp-content/uploads/2017/02/M3ENG.pdf