Questions About Room Sim

[kalakasan]

Now that I've got REW working with Flexasio, I've placed my 4 ported subs in the REW room simulator, trying to be as accurate as possible.

Question: Should I put the sub height at the distance from the floor to the speaker cone center, as I've done in this simulation? Actual cone center from the floor is 18"

Also, I should note that I need to keep the subs pretty much where where they are - I have side and rear speaker columns which limits the amount of adjustment possible. In addition, the 3rd sub is not facing forward, but 90 degrees into the back half of the room.
Finally, the mlp represents the right seat in a 2-seat recliner, hence its relatively skewed position.

Any initial impressions regarding the response curve would also be appreciated!

Thanks!

 

[John Mulcahy]

Question: Should I put the sub height at the distance from the floor to the speaker cone center, as I've done in this simulation? Actual cone center from the floor is 18"

Yes. You can right click on a sub in the plan view to rotate it, 90 degrees for each click. 60 Hz may be troublesome but amenable to EQ, you would need to make a room measurement to know what the actual response looks like. Any ability you have to adjust the delay of the individual subs (even phase controls on the subs) provides scope for tweaks to make the response more even. Multi Sub Optimizer could work out settings and EQ to use if you have a way to apply individual delays and EQ to each sub, or you could play a Pink Periodic Noise test signal and watch the response on the RTA as you tweak things by hand.