Cons of using main XLR/Balanced outs for subwoofer?


I'm putting my system together for the first time in a new space with a new to me preamp and new speakers.

Signal Chain:
TT/Streamer
McIntosh C220
McIntosh MC7270
Ohm Walsh 4.4012

The 7270 does not offer balanced inputs.
The Ohms have active subs which offer balanced input.
The C220 has only one Balanced output for the Main Output. 

Is there any harm in using the main XLR output to send signal to the subwoofers, and using the 1, or 2 RCA output to send signal to the main drivers?

Thoughts?

Thanks
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zdw11

Showing 2 responses by rlb61

@atmasphere Ralph, please explain the hookup with the ISO-MAX. I’m running the balanced main output from my preamp into the power amp. I’m running simultaneously the single ended main output into my sub. So, if I used the ISO-MAX for the sub, how would that be hooked up if you don’t recommend using the single ended output at all? Thanks.
@atmasphere Ralph ... I have two main outs - one is balanced and one is single ended. The balanced goes to my power amp directly. The single ended goes to the sub directly. If I used the ISO-MAX, then it would appear I'd just go from the single ended output into the ISO-MAX and then go single ended into the sub. Will that configuration really make a big difference? Thanks.