Wiim Ultra, Musician Pegasus R2R DAC, 3e Audio A5 amp

[vbutani]

Do your room boundaries (walls) move around between listening sessions or something?

-Ed

Sorry for the confusion. I mean before upgrading to Ultra. I was facing boominess from floostanders due to less space in the back wall around 8" inch.
I used to pull speakers in front till 90cm from wall for peaceful listening session. Which is now reduced drastically after applying 75hz. I'm fine with depth compromise for most of the part and sometimes pull them again for critical listening.

 

[FedotovKA]

I have an acoustic system that plays very low frequencies. I spent a long time choosing the crossover point for blending with the subwoofer. When setting the crossover, phase discrepancies are inevitable, which means dips will appear.

Here's my final recipe:
1. Align the delays between the subwoofer and the speakers (after each movement in the room)
2. Disable the crossover on the subwoofer - play in a wide band (LFE)
3. In the subwoofer settings, set both the speakers and the subwoofer to bypass mode
4. Adjust the subwoofer volume so that it plays slightly louder than the speakers
5. Perform correction from the listening position - exclusively with an external microphone (in my case, umik-1)

This way, both the speakers and the subwoofer will play in the same frequency range and support each other. If your system has linear phase, there will be no dips in the frequency response.

 

[harkpabst]

So, you let your sub play with no crossover at all up to the highest frequencies it is capable of?

I cannot call that a general recommendation, even if it works in your case.

 

[FedotovKA]

So, you let your sub play with no crossover at all up to the highest frequencies it is capable of?

I cannot call that a general recommendation, even if it works in your case.

Of course not, it has a natural roll-off, it's incapable of going above 250 Hz. In reality, I think the roll-off starts after 150 Hz.
That's why it still doesn't localize and doesn't introduce extra distortions in the range where the main system plays significantly louder than it.

 

[harkpabst]

All well, you should use the config that sounds best to you. As long as we agree that it's not a general recommendation.