Don't know from bass room modes.
Nodes can be overcome by
1 Bass traps up the wazoo with one or 2 well places subs. Use REW for that.
2 Moving speakers and or seat until balanced at listening position
OR
3 Abandon all hope of using the room for anything besides A/V. Get out your wallet and hire a home decorator to find a place for 4 subwoofers. Probably in lieu of seating.,
Nodes can be overcome by
1 Bass traps up the wazoo with one or 2 well places subs. Use REW for that.
2 Moving speakers and or seat until balanced at listening position
OR
3 Abandon all hope of using the room for anything besides A/V. Get out your wallet and hire a home decorator to find a place for 4 subwoofers. Probably in lieu of seating.,