Set your sub to bypass. Let your avr do the job

Jimmy,

What is the exact labelling on ur sub for this cutoff? I believe this is a low pass filter, meaning anything above this it will not play on the sub.
It's called Cut-off Freq as stated in the manual, from 50Hz - 100Hz. I agreed, is a low pass filter.

Also on the AVR what is the exact labelling of the sub? This shd also be a low pass filter so essentially they shd be set the same.
It's called Crossover Freq(AVR Denon 2309)

What I would advise u to do would be to decide the frequency of the mains/centre and the sattelite. What are they set at?.
I set the crossover freq. for all speakers(FL,FR,C,SR,SL) at 100Hz in the Speaker Advance Setting menu.

Also what is the rating on ur sub?
I think is 170Watts.

What is ur AVR? Does it have Audyssey? Or any room correction?
Denon 2309 and I don't use the Audyssey and room correction.

Jimmy,

As htkaki said, set both to 100Hz. How low does ur Sony sub go? Was this a standalone sub or something from a HTIB?

Why don't u use Audyssey? Did u run into any problems? If u did run Audyssey, could u let me know the settings that Audyssey suggested?

Also as htkaki asks, pls let us know what speakers u use?

Ok. BMB speakers are normally for karaoke as such, high effeciency but also distortion. So u need to watch the volume. Since they are high efficiency, what speaker level trims did u set since u do not use Audyssey? If u do not have a SPL meter, it is difficult to set correctly and this could spoil ur HT experience as u could be overpowering ur surrounds or vice versa. Audyssey will take away all the guess work unless u are planning to set everything by ear and are happy with it.

Also these speakers don't normally go low as its meant for vocals. So I would suggest to let Audyssey do its thing and see how it sounds. I believe ur settings of 100Hz are not too far off, but I also believe u would not have adjusted the trims, unless u did. Audyssey automates this whole process of setting the speaker trims, crossovers and also checks if u set the phase correctly. If u run into any problems with Audyssey, let me know. Also pls use a tripod when u do Audyssey calibration. Read the instructions and carry out the 8 points if it allows. Then see how it sounds. It shd be more balanced and since it also has filters to fix the frequency issues in ur room, shd sound more correct.

Cool. What is the technical specs on them?

Cool. What is the technical specs on them?

Jimmy,

As htkaki said, set both to 100Hz. How low does ur Sony sub go? Was this a standalone sub or something from a HTIB?

Why don't u use Audyssey? Did u run into any problems? If u did run Audyssey, could u let me know the settings that Audyssey suggested?

Also as htkaki asks, pls let us know what speakers u use?

Hi Sifu, attached are the Audyssey results.

Is the front L/R same speakers as the centre?
Yes

Did u use a tripod when measuring?
No, I don't have 1. But I used a wooden chair to simulate my hearing height position.

Was the room quiet when u did it? Was there extraneous noise when the fronts were being measured?
Room quiet. Fans and lighting all OFF.

If there were no measurement errors, and ur fronts are the same models and specs as ur centre, then ur primary seating place is causing the xovers to be set very high for ur fronts. There is some cancelation. Based on this and ur subwoofer not being able to handle below 100Hz, u will lose some impact from the fronts as they are crossed over at 150Hz, and ur sub at 100Hz.
Should I modity the xovers setting manually? Let's say, set the fronts and centre at the same xovers freq.?

However, my main suspicion is ur placement. U might need to move the fronts slightly forward and tilted to get rid of the
null in ur seating position.
I don't have much space. Tilted, u means toe-in?

Also are the fronts rear ported? or front ported?
Fronts and Centre are rear ported.
For Fronts speakers, the top and bottom are the Mid, the middle is the tweeter. Same for Centre speaker.

Yes, toe in and bring it slightly forward. Ur results indicate that the room is causing some issues.

I would not modify the xovers for now. Needs some investigating. Also I would advise against using the mic on a chair.

Pls PM me, since u r in Pg, maybe we can check it out.