How loud is sub supposed to be? - AVS Forum
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post #1 of 18 Old 07-01-2011, 01:32 PM - Thread Starter
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Is there a way of knowing how loud I should have my sub?
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post #2 of 18 Old 07-01-2011, 01:45 PM
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SPL meter from radio shack. Use that to measure the mains and then the sub. Adjust the level through the AVR till they match.
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post #3 of 18 Old 07-01-2011, 01:53 PM
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If your AVR has YPAO or Audyssey (etc.), run it!

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post #4 of 18 Old 07-01-2011, 01:56 PM
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Quote:
Originally Posted by cavu View Post

If your AVR has YPAO or Audyssey (etc.), run it!

Not sure why, but I have had to still adjust the sub level after running Audyssey. I don't fully understand Audyssey though, and I have not spent enough time in the Audyssey thread. I use REW to verify my results.
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post #5 of 18 Old 07-01-2011, 01:57 PM
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When the neighbors call the cops or pictures start falling off the wall, it may be too loud ..

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post #6 of 18 Old 07-01-2011, 01:58 PM
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Quote:
Originally Posted by ndskurfer View Post

Not sure why, but I have had to still adjust the sub level after running Audyssey.

What makes you think you have to adjust the sub level?!

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post #7 of 18 Old 07-01-2011, 01:59 PM
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Related to my mains, my sub is 10dbs low after running Audyssey. That is a problem..
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post #8 of 18 Old 07-01-2011, 02:06 PM
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Quote:
Originally Posted by ndskurfer View Post

Related to my mains, my sub is 10dbs low after running Audyssey.

That is as it should be.

See HERE.

Or HERE.

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post #9 of 18 Old 07-01-2011, 02:26 PM
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Calibrate and play "Tron 2". Look on floor. If your fillings aren't on the carpet, it's not loud enough.

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post #10 of 18 Old 07-01-2011, 02:33 PM
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Quote:
Originally Posted by ch1sox View Post

Is there a way of knowing how loud I should have my sub?

When it sounds right to you, it's loud enough.

Quote:
Originally Posted by ndskurfer View Post

Related to my mains, my sub is 10dbs low after running Audyssey. That is a problem.

If your sub is coming in significantly lower, boost the gain on the sub itself and re-run Audyssey.

When I run Audyssey, my sub is always lower than my mains. No big deal. What I do, though, is bump the sub level on my AVR up by 3dB. Even though it's still below the level of my mains, it puts the sub exactly where I want it: Plenty of bass, yet well-integrated with the rest of my system.

YMMV.
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post #11 of 18 Old 07-01-2011, 03:57 PM
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Quote:
Originally Posted by mgkdragn View Post

When the neighbors call the cops or pictures start falling off the wall, it may be too loud ..



Quote:
Originally Posted by smudge981 View Post

Calibrate and play "Tron 2". Look on floor. If your fillings aren't on the carpet, it's not loud enough.







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post #12 of 18 Old 07-01-2011, 04:10 PM - Thread Starter
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What I meant to say is this: I have already run Audyssey, but I'm referring to the actual knob on the receiver. Yes, I can turn the knob on the receiver all the way up, but that would just be WAY to boomy throughout the entire movie. Do most people set it to 1/4? 1/2? All the way? Or does Audyssey override the volume know on the sub?
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post #13 of 18 Old 07-01-2011, 04:54 PM
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post #14 of 18 Old 07-01-2011, 05:19 PM
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Quote:
Originally Posted by ch1sox View Post

What I meant to say is this: I have already run Audyssey, but I'm referring to the actual knob on the receiver. Yes, I can turn the knob on the receiver all the way up, but that would just be WAY to boomy throughout the entire movie. Do most people set it to 1/4? 1/2? All the way? Or does Audyssey override the volume know on the sub?


I have an Onkyo HT-RC180 with Polk monitors 30 and 50 and a MFW-15, if i turn the knob all the way, that´s freakin loud xD, most of the time i turn the volumen to the half (acording to the graphic volume) and that´s more than OK for me.

Now with the sub i have the same problem, my room is small, like 3x4 (meters) and Audissey put my sub in -15db, what i do is just adjust it and i put it like -6.0db, then i put some scenes from movies that i know and i made my proofs if there is enough bass.

Pd: Excuse for my english xD, i´m just learning.
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post #15 of 18 Old 07-02-2011, 01:29 PM
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Quote:
Originally Posted by ch1sox View Post

Is there a way of knowing how loud I should have my sub?

a lot of ideas, but my rule of thumb. if you have the sub set for 50Hz and below you should not be able to hear any
audio out of the sub speaker box. go to HT 101 and use "realtraps" test tone to see if your sub vibrates. if it does
you need to turn the sub down or what your driving the sub with. listen for nice clean sound.
start with your audio level at normal TV listening at first.
then try at your movie level.
if you are still getting any noise from the sub box, one or the other may still be driving too hard.
it may take a while to get it right. patience......
some times I have a new movie that will hit it just a bit hard.....I have to re-adjust.
it took me over 1 month to get it right.
to give you a idea, low volume watching TMZ has kettle drums sounds great,
then turn it up to watch Inception. it shakes my house, my wood frame house 13'X16' room floor vibrates up and down 1"
and can feel it through my feet being on the floor. but I still do not hear any noise from
the sub speaker box. I run a BIC V1220 12" 200 watt 430watt peak.
it's volume on the sub box is 3 and 3/4 out of 10.
I am sure most who buy a sub want to run it at 10 out of 10.....for effect.
hope that helps.....

my HT
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post #16 of 18 Old 07-02-2011, 11:07 PM
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Quote:
Originally Posted by eaamon View Post

a lot of ideas, but my rule of thumb. if you have the sub set for 50Hz and below you should not be able to hear any
audio out of the sub speaker box. go to HT 101 and use "realtraps" test tone to see if your sub vibrates. if it does
you need to turn the sub down or what your driving the sub with. listen for nice clean sound.
start with your audio level at normal TV listening at first.
then try at your movie level.
if you are still getting any noise from the sub box, one or the other may still be driving too hard.
it may take a while to get it right. patience......
some times I have a new movie that will hit it just a bit hard.....I have to re-adjust.
it took me over 1 month to get it right.
to give you a idea, low volume watching TMZ has kettle drums sounds great,
then turn it up to watch Inception. it shakes my house, my wood frame house 13'X16' room floor vibrates up and down 1"
and can feel it through my feet being on the floor. but I still do not hear any noise from
the sub speaker box. I run a BIC V1220 12" 200 watt 430watt peak.
it's volume on the sub box is 3 and 3/4 out of 10.
I am sure most who buy a sub want to run it at 10 out of 10.....for effect.
hope that helps.....

I have no clue what you mean by noise from the speaker box and sub vibrates. Aren't subs supposed to create noise and vibrate? Why wouldn't you hear any audio out of the "sub speaker box" when it's set for 50Hz and below. I'm so lost...
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post #17 of 18 Old 07-06-2011, 09:09 AM
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Quote:
Originally Posted by yelnatsch517 View Post

I have no clue what you mean by noise from the speaker box and sub vibrates. Aren't subs supposed to create noise and vibrate? Why wouldn't you hear any audio out of the "sub speaker box" when it's set for 50Hz and below. I'm so lost...

no the box should not vibrate.
it is because sound below 50 Hz is omni directional.
you hear it all around and from no direction. the sub can be beside you but as you are facing the
TV or projection viewing wall you believe the sound is coming from that direction.
it should be a nice clean sound.
yes you sound lost.

my HT
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post #18 of 18 Old 07-06-2011, 10:10 AM
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Quote:
Originally Posted by ch1sox View Post

What I meant to say is this: I have already run Audyssey, but I'm referring to the actual knob on the receiver. Yes, I can turn the knob on the receiver all the way up, but that would just be WAY to boomy throughout the entire movie. Do most people set it to 1/4? 1/2? All the way? Or does Audyssey override the volume know on the sub?

You should set the volume on the sub to where after calibration the receiver setting for the sub is somewhere close to 0, this will give you a range to adjust later if needed in the receiver.

I would try about 1/4 volume to start, after running Audyssey you can adjust higher of lower to where Audyssey is setting your receiver volume close to 0. It may take a couple of attempts to "zero in"

As far as the final balance between your mains and sub most accurate is to be the same between mains and sub (which if using a sound pressure meter will be sub about 3db lower than mains). Most find setting sub about 3 to 6db higher sounds "better" especially since most listen at less than reference level.

I hope this helps,
Barry
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