How many subwoofers are you using in your main system or home theater?

[Usher99]

With an MSO sub only configuration just set the XO on the fronts to the highest value available and disconnect one of the fronts. Signal sent to the disconnected front will only go to sub out. Use the other front for timing reference.
This method also has the benefit of not being restricted by the LPF for LFE filter. So the sub will play higher frequencies than when using the LFE channel, unless of course your processor allows you to turn it off.
Easy peasy. No need for ASIO.
If you’re connecting REW to your processor with HDMI the EXCL labeled drivers will allow you to directly access all channels. Available in current version of REW. So, still no need for ASIO, but I’d still go with my first suggestion if you can’t deactivate the LPF for LFE.

Wow! No clue that was possible. I had thought ASIO was the only way for my Anthem AVR to access all channels. I need to learn more about EXCL. A generous genius on this forum came up with a procedure to allow MSO to work with usual Java drivers:

“You're using a miniDSP, right? If that's correct and you're using MSO "Sub-Only" procedure, and ASIO refuses to work, you can get your MSO measurements using the JAVA drivers by:
1. TURN OFF THE POWER TO SUBS, MINIDSP AND AVR WHILE CHANGING THE CONNECTIONS
2. Connect the miniDSP to either the right or left speaker PRE-AMP OUTPUT AND DISCONNECT THAT SPEAKER on AVR. (the other will be used for timing reference.)
3. Set the fronts to "Large" in the AVR.
4. Follow MSO instructions from here.”

Your current suggestion sounds much easier. Thank you! I got the MLP to sound very good with the mini dsp and did overlay Anthem room correction using my one virtual sub.
The secondary seating positions sub response is not great. I need to revisit MSO.

 

[Todd Anderson]

The secondary seating positions sub response is not great. I need to revisit MSO.

I often wonder if folks that sit in secondary seating positions care - or know to care. I completely understand where you're coming from - but, there's something to be said about being happy with one super dialed in seat. It's definitely easier on my home theater OCD!

 

[3dbinCanada]

Acoustics rules are not a tenet, but a method to avoid of rough mistakes. This room doesn't seems to me simple. However, we have to remember some of them. The first of all, good bass responce requires dense and massive fences. For this room we see to many windows, which hinder in following it. The second, your hall has some connected rooms. The third, there are many soft furniture subjects - sofas, armchairs and I'm not sure, that wall and ceiling finishing is done without gaps between masonry and plasterboard "blankets". All these circumstances exclude, as a rule, a possibility to use only one-two subs. Undoubtedly.

Agreed. This is the point I'm trying to make. Most peoples' rooms are designed around living accommodations and not designed to be bass friendly. I use three subs tied together by a MiniDSP 2x4HD and I've done an alright job in getting fairly smooth bass response in the room. That's why I said that in most cases, people do NOT have a choice. They have to work with the constraints of the room which includes multiple subs and some sort of DSP to acoustically glue the subs together.

 

[3dbinCanada]

I often wonder if folks that sit in secondary seating positions care - or know to care. I completely understand where you're coming from - but, there's something to be said about being happy with one super dialed in seat. It's definitely easier on my home theater OCD!

I can relate!!