Wiim Ultra with SVS Micro 3000

[slartibartfast]

The resonance at 40Hz is caused by the room and/or the placement, yes - this is not really an issue.
But there could also be a cancellation around the crossover, so the latest proposed steps are to see if there's any chance to get a better baseline for RoomFit with the sub level set at -20dB.

If neither option proposed in post #77 results in improvement, then the response you got post-RoomFit in post #47 is what I'd suggest to keep (i.e. the one with sub level set to -10dB).

There shouldn't be a cancellation at the crossover frequency sine the sub/speaker sync was run with the device in the listening position but that dip is quite large. It might be worth running an evaluation with the sub turned off to see what the speaker response is at the dip frequency.

 

[harkpabst]

There shouldn't be a cancellation at the crossover frequency sine the sub/speaker sync was run with the device in the listening position but that dip is quite large. It might be worth running an evaluation with the sub turned off to see what the speaker response is at the dip frequency.

It's still possible that the combination of phase and latency is not ideal.

As I said before, it's not so much about cancellation, but less then ideal summation. If sub and mains were really canceling out each other the increasing the sub level would probably not yield better results at a higher sub level.

 

[dominikz]

It's still possible that the combination of phase and latency is not ideal.

As I said before, it's not so much about cancellation, but less then ideal summation. If sub and mains were really canceling out each other the increasing the sub level would probably not yield better results at a higher sub level.

Agreed, this is my suspicion as well.

 

[slartibartfast]

It's still possible that the combination of phase and latency is not ideal.

As I said before, it's not so much about cancellation, but less then ideal summation. If sub and mains were really canceling out each other the increasing the sub level would probably not yield better results at a higher sub level.

It also seems odd that the 0/180 phase switch didn't make an audible difference. It should definitely make a visible difference to the measured response.

 

[harkpabst]

It also seems odd that the 0/180 phase switch didn't make an audible difference. It should definitely make a visible difference to the measured response.

Yeah. At least when listening with no room correction that 40 Hz resonance might fully mask any difference around 80 Hz.

@Lagavulin, don't get us wrong, your final results were really pretty fine and using EQ (not room correction) for the final touch of personal taste is a good idea, anyway. It's just a matter of if your system could sound even better with some more effort prior to running RoomFit.