Advice on KEf R3 placement, subwoofer selection. (measurements included)

[stormobile]

Hi all,

I live in a high-rise apartment building and my only spare room is very asymmetrical - nothing to do about that and I can't put any room treatment (given the number of corners in this room - bass traps would eat up all + cost more than 4 subs). Please help me tune the system: Kef R3 Meta + Wiim Ultra. UMIK-01 microphone. The current placement is: speakers are as close to the front wall as possible to even out the response in 60-100HZ with room gain. Bringing them forward would result in uneven response in that range. The distance between the tweeters centers is 190cm. My listening position is 250cm from both tweeters (this is the place that gives the most even bass response when setting the speaker in the corner and walking around with RTA in REW). As the room is asymmetrical, the FR of speakers is different - the first picture is FR of R an L with 1/6 smoothing. No calibration applied.

This is the measurement of L+R without calibration and with Wiim Room Correction ( 6db max gain, separate L and R measurements)

Where do I go from here? I can buy 2 subs to fix the 53HZ dip ( I assume this is the room mode). What would be the better option: 2x SVS SB-1000Pro vs 2x RSL 10sMK2? As I have Wiim, I don't think that I need much SVS DSP, but at the same time, I'd prefer NOT to have an extension below 40HZ as I don't want to have any problems with neighbours.

As for 160HZ dip, which is present only when both speakers are measured and persists at any listening position, I assume this to be speakers cancelling each other. What should I do with that? Sry for maybe wrong measurements - it's my first time using REW

 

[staticV3]

The WiiM Ultra cannot high-pass subs and cannot apply different EQ to separate subs, so I'd say that an additional EQ in each sub will enable better integration.

For in-room response measurements, I'd highly recommend switching to the Moving Microphone Method.

Here are some resources:
https://www.audiosciencereview.com/...phone-method-mmm-for-dummies-using-rew.51333/
https://www.ohl.to/audio/downloads/MMM-moving-mic-measurement.pdf
https://www.loudspeakers.audio/en/faqs/mmm-moving-mic-measurement/

As for speaker placement, check out REW's Room Simulator as well.

You can play with placement and phase of all four loudspeakers to see which combination works best.

 

[stormobile]

For in-room response measurements, I'd highly recommend switching to the Moving Microphone Method.

I am not sure that at this stage this would provide meaningful improvement, given that 160Hz dip that is the main issue for me is persistent across multiple listening positions.

As for speaker placement, check out REW's Room Simulator as well.

This won't do any good, or to say it more accurately I am not ready to try to plot this room. The room has not only multiple angled walls but also an appendix to the left separated by a drywall column - the shape is irregular to the degree that I couldn't properly graph it in amroc so it's much less time consuming to do RTA than trying to calculate the response.

 

[stormobile]

Ok. So I was playing around some more, and I think I found the culprit for many of my issues - the closet in the back or the room. Opening the door to it solves some of the most annoying peaks around 40 Hz. Could someone please look at my measurements and say if this is close enough to the desired response?

No Calibration:

Calibrated by WiiM:

REW measurements are in the ZIP. Additionally, I've purchased two SVS SB-1000Pro subs. DO they still make sense for this setup given the response I get? Money is not an issue but would there be any benefit compared to additional time to spend on integrating them?