Set your speakers to "Small" and set a crossover of at least 80hz. But understand if you do this and you don't have a sub, you're effectively killing off the under 75hz region of your main L/R/C speakers bass performance. Therefore, things will absolutely sound tinny.

The other way; get a 2 channel (or multi channel if you want) power amp and use that to power your main front speakers. You can then run them at "Large" i.e Full Range. However, the receiver or pre/pro will need to have pre-outs in order to achieve this, the v681 doesn't have pre-outs unfortunately.
Simply setting the volume of the sub to 50% (or 12' oclock) doesn't guarantee that the sub will sound loud. Why? Room Modes, that's why.

To put it simply;
1) Maybe your sitting position may be in a HUGE null spot, that's why you don't hear the sub much.
2) Maybe your sub is placed wrongly in accordance to your main listening position, there by again - being placed in a null spot.
3) 50% is not a standard volume to set for all subs. Sub A can be 50% and hit 75db standard from the main listening position, however sub B might have to be set to 75% in order to hit 75db spl.

There are a multitude amount of other factors. This is why it's highly recommended to get an SPL meter and VERIFY the volume output from your listening position.

As for crossover setting, 80hz is a good general starting point. But it's not a set rule where all HT setups must abide to. It depends on the room and it certainly depends on the speakers. If your speakers cannot play down to 80hz with authority, then setting the crossover to 80hz will leave you with an obvious gap from the speaker's roll off -6db point. There is no "best" crossover setting, unless everyone owns the same speaker, sub and live in the same room.

What receiver are you using anyways?

Thanks for the advice, yes I'm newbie to HT sound. I'm using Denon X1300W. Yamaha ns555, ns444 as F, R, C speakers. Surround back RL and RR I'm using Boston acoustic XS speaker. For subwoofer, I'm using the ancient wharfedale diamond sw150.
During speakers setup and test, I can hear the subwoofer sounds loud, when I do audyssey calibration, the subwoofer sounds pooney.
Getting complicated with come to sound wave length, positioning and tool to detect. I don't have any SPL tool. Anywhere I can get it cheap?

Thanks for the advice, yes I'm newbie to HT sound. I'm using Denon X1300W. Yamaha ns555, ns444 as F, R, C speakers. Surround back RL and RR I'm using Boston acoustic XS speaker. For subwoofer, I'm using the ancient wharfedale diamond sw150.

During speakers setup and test, I can hear the subwoofer sounds loud, when I do audyssey calibration, the subwoofer sounds pooney.

Getting complicated with come to sound wave length, positioning and tool to detect. I don't have any SPL tool. Anywhere I can get it cheap?

I think the woofer is good bro, I feel the low bass coming out and doesnt carry any vocal our sound. Just thum thum sound. But i have to crank up the Denon receiver volume more than 45 nots above then it feels more apparent. The subwoofer back volume I have to set it lower than middle else it makes my living room shaking which is scary.

So my AVR speakers config is set to small@60Hz all front speakers, small@200Hz surround side speakers, Woofer yes with LFE and 80Hz.
Any comment on my settings?

Set your speakers to "Small" and set a crossover of at least 80hz. But understand if you do this and you don't have a sub, you're effectively killing off the under 75hz region of your main L/R/C speakers bass performance. Therefore, things will absolutely sound tinny.

The other way; get a 2 channel (or multi channel if you want) power amp and use that to power your main front speakers. You can then run them at "Large" i.e Full Range. However, the receiver or pre/pro will need to have pre-outs in order to achieve this, the v681 doesn't have pre-outs unfortunately.
Simply setting the volume of the sub to 50% (or 12' oclock) doesn't guarantee that the sub will sound loud. Why? Room Modes, that's why.

To put it simply;
1) Maybe your sitting position may be in a HUGE null spot, that's why you don't hear the sub much.
2) Maybe your sub is placed wrongly in accordance to your main listening position, there by again - being placed in a null spot.
3) 50% is not a standard volume to set for all subs. Sub A can be 50% and hit 75db standard from the main listening position, however sub B might have to be set to 75% in order to hit 75db spl.

There are a multitude amount of other factors. This is why it's highly recommended to get an SPL meter and VERIFY the volume output from your listening position.

As for crossover setting, 80hz is a good general starting point. But it's not a set rule where all HT setups must abide to. It depends on the room and it certainly depends on the speakers. If your speakers cannot play down to 80hz with authority, then setting the crossover to 80hz will leave you with an obvious gap from the speaker's roll off -6db point. There is no "best" crossover setting, unless everyone owns the same speaker, sub and live in the same room.

What receiver are you using anyways?

yamaha 681 can see the eq graph result from avr?
see if u ypao + loud volume vs pure direct + loud volume
who has more bass or not.

i worry the ypao cut down bass becos wall reflection.
use ypao flat, natural, front align. are different if u hass free time to test

Yup very true bro once I change to small and set the crossover to 80hz the bass is off...now my L/R bookshelf set to large and center set to small..now the boom from center speaker is off..now the sounds abit good
I prefer ypao natural..ypao front feel like more bass..i run ypao again after the correction now sounds a bit good...yup bro got graph there I didn't tweak it caused no idea will take photo later

I would still suggest to set all your speakers to "Small". Bass management is important for movies especially. But yeah, what sounds good to you is the most important at the end of the day.

YPAO front has more bass because all it does is EQ all your speakers to your front L/R, which often times has the biggest drivers in the speaker system after the sub.

check ur eq result.preferred not touching peak of positive or negative db.


can use large for front L--R. so that it give better bass matching  instead of sub only. becos u are mixing few kind of british and japan brands.

bass setting from avr leave 120hz until u have finish tune everything. then can adjust according to room create more kick. 80hz too low probably killed all the intended boom from action movies. unless your main usage is music.

boston xs 3" can go 120-150hz. too high crossover feel unnatural + less clean bass fron subwoofer becos it will mix all small channels together.

audyssey function should be boost bass at low volume, while reduce bass as u go louder. like mine can go from normal -43db (37%) all the way up 0db  (80%) while the bass boom is under controlled. no need touch behind the sub at all. reference offset is the boost target. lower =less treble and bass.


your case is rear spk crossover 200hz make a lot mid bass signal being sent into subwoofer. result is very boom. run the staircase test like that surely shake whole room

recommended to adjust rear spk level yourself as audyssey often miss compensate after multi seat eq calibration.

by the way, have fun

check ur eq result.preferred not touching peak of positive or negative db.


can use large for front L--R. so that it give better bass matching  instead of sub only. becos u are mixing few kind of british and japan brands.

bass setting from avr leave 120hz until u have finish tune everything. then can adjust according to room create more kick. 80hz too low probably killed all the intended boom from action movies. unless your main usage is music.

boston xs 3" can go 120-150hz. too high crossover feel unnatural + less clean bass fron subwoofer becos it will mix all small channels together.

audyssey function should be boost bass at low volume, while reduce bass as u go louder. like mine can go from normal -43db (37%) all the way up 0db  (80%) while the bass boom is under controlled. no need touch behind the sub at all. reference offset is the boost target. lower =less treble and bass.


your case is rear spk crossover 200hz make a lot mid bass signal being sent into subwoofer. result is very boom. run the staircase test like that surely shake whole room

recommended to adjust rear spk level yourself as audyssey often miss compensate after multi seat eq calibration.

by the way, have fun

are you using Denon AVR 4300H OR 6300H or 6200W

denon avr x2000 this one is

Oh any other solution to solved this problem without installing sub

*Can someone enlighten me? During surround 5.1 calibration using the provided mic, how does the active subwoofer sound? I felt it sound too soft and low compare to the rest of the speakers. I set crossover frequency 80 and vollume at 50% at the back of the subwoofer, from the receiver i select bypass. Hmm wondering if this correct.
Anyone know can share what is the best crossover frequency for front L, front R, center, surroud L and surround R that should set on the receiver?

During speakers setup and test, I can hear the subwoofer sounds loud, when I do audyssey calibration, the subwoofer sounds pooney.

ohh thanks
i planing buying Denon X4300h for replace my onkyo tx 1010
my onkyo avr already too old i will sell it
because i scared hdmi board will death for onkyo
i think denon wont problem hdmi board

add power amp

Cant add power amp to Yamaha rxv681 didn't have output 😋..need to change avr

Cant add power amp to Yamaha rxv681 didn't have output 😋..need to change avr

Hehe... upgrade...

add a subwoofer first, off load the job from all spk.
681 still new takkan change

Poison poison 😋
Yup bro still new actually not fix yet going to change or not just planning if I let go 681 now maybe will get higher trade in eyeing on Marantz sr6011..let see 😋