Where is that chest thump located? - AVS Forum | Home Theater Discussions And Reviews
View Poll Results: The chest thump is located in:
20Hz - 40Hz 6 21.43%
40Hz - 60Hz 5 17.86%
60Hz - 80Hz 12 42.86%
80Hz - 100Hz 2 7.14%
100Hz - 120Hz 3 10.71%
Voters: 28. You may not vote on this poll

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post #1 of 27 Old 06-28-2020, 11:49 PM - Thread Starter
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Where is that chest thump located?

Hello all,
So I have now got a decent dual sub setup in my pursuit of a chest thumping bass but sadly not getting it just yet Now i wanted to actually know in which frequency range does the chest thump bass reside? I mean i have done some reading about this but everyone seems to be saying a different range each time. I will a poll and hope to get some feedback as well from you here.

thank you

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post #2 of 27 Old 06-29-2020, 12:01 AM
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Quote:
Originally Posted by John24ssj View Post
Hello all,
So I have now got a decent dual sub setup in my pursuit of a chest thumping bass but sadly not getting it just yet Now i wanted to actually know in which frequency range does the chest thump bass reside? I mean i have done some reading about this but everyone seems to be saying a different range each time. I will a poll and hope to get some feedback as well from you here.

thank you
Do you have a scene from a movie that gives you a lot of chest thumping goodness? I'll measure it for you and tell you what frequency you're after
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post #3 of 27 Old 06-29-2020, 12:16 AM - Thread Starter
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Quote:
Originally Posted by phatfreeza View Post
Do you have a scene from a movie that gives you a lot of chest thumping goodness? I'll measure it for you and tell you what frequency you're after

Well that's the thing I don't know as I haven't experienced it yet
My XTZ 12.17 edge allows port tuning to boost different frequency ranges:






but I don't know which ones to boost?
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post #4 of 27 Old 06-29-2020, 12:23 AM
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Quote:
Originally Posted by John24ssj View Post
Hello all,
So I have now got a decent dual sub setup in my pursuit of a chest thumping bass but sadly not getting it just yet Now i wanted to actually know in which frequency range does the chest thump bass reside? I mean i have done some reading about this but everyone seems to be saying a different range each time. I will a poll and hope to get some feedback as well from you here.

thank you
The deeper the bass, the more it travels through objects and moves objects and the more you feel it. Since you say you haven't felt it at all and looking at your graphics which are weak near 20hz, I'd say that the frequencies you are lacking are those you wish you had.

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post #5 of 27 Old 06-29-2020, 12:33 AM - Thread Starter
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Quote:
Originally Posted by markmon1 View Post
The deeper the bass, the more it travels through objects and moves objects and the more you feel it. Since you say you haven't felt it at all and looking at your graphics which are weak near 20hz, I'd say that the frequencies you are lacking are those you wish you had.

The graphics are just for a single sub the XTZ that can be port tuned.



With them both I get this frequency response as seen in the attached image:
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post #6 of 27 Old 06-29-2020, 12:53 AM
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There is a bit of general disagreement when it comes to this

IMHO - first up - you probably need to be listening fairly loud to experience significant "chest thump", you won't get this with 85dB peaks IME
Secondly - you need a fairly smooth FR - especially the transition between subs and speakers

I personally feel what I call "chest thump/slam" more so in the 50Hz -120Hz range.


To counter the argument that it's centered more ~30Hz range - some of the most obvious chest slam I have felt is at outdoor events, usually using cheap 15-18" PA speakers and the feeling in the chest cavity is very obvious to me. I was at a market a few months ago that had some live music and the group performing were using just a pair of Behringer B215XL's (I specifically recall because they are sometimes recommended as inexpensive HT speakers on AVS) and though they are HUGE,they are only rated to 55Hz (which may be their -10dB point from graphs I've seen) and the chest slam produced by these was substantial and could be felt 10m away

anyway, that's my 2c

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post #7 of 27 Old 06-29-2020, 01:00 AM
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Chest slam is accepted and agreed upon where it ranges between 50-120hz, where by the most significant noticeable "slam" is centered around 60hz.
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post #8 of 27 Old 06-29-2020, 01:24 AM
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Quote:
Originally Posted by Ben Tan View Post
Chest slam is accepted and agreed upon where it ranges between 50-120hz, where by the most significant noticeable "slam" is centered around 60hz.
There are some who disagree with this though
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post #9 of 27 Old 06-29-2020, 01:29 AM
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I usually consider it 50~200Hz.

Therefore, high output below 80Hz as well as above 80Hz from HE speakers.
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post #10 of 27 Old 06-29-2020, 01:38 AM
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Quote:
Originally Posted by chucky7 View Post
I usually consider it 50~200Hz.

Therefore, high output below 80Hz as well as above 80Hz from HE speakers.
This!!^^^

My midbass improved significantly going from typical 5"-6.5"mid/dome tweeter speakers to dual 10" high sensitivity speakers
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post #11 of 27 Old 06-29-2020, 03:14 AM - Thread Starter
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Well this shows things different:
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post #12 of 27 Old 06-29-2020, 03:19 AM
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Even though my sleepy, fat fingers accidentally voted for 20-40Hz in the poll on mobile, I agree with Chucky7 and Jamiebosco. IMO, the reason a lot of people (me included) can't feel that slam is because of room and speaker arrangements, not the subwoofer per se. Sub certainly helps, contributes, and is in the mix, but it takes a lot more.

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post #13 of 27 Old 06-29-2020, 03:59 AM
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From this thread:
Quote:
Originally Posted by Bill Fitzmaurice
Quote:
Originally Posted by boomybass
... what is the secret of chest thumping visceral bass. Some people say it's just a result of big sub playing loud enough.
It is. You need well over 105dB at the LP in the 50-70Hz range with music, somewhat less with LFE in a home theater. Either way that's higher than THX reference, and not easy to realize with less than a pair of 15 inch subs in an average room. Cranking gain without muddyness requires mains able to keep up with the subs. That usually means at least 2x8 high sensitivity mains, optimized for maximum output above 80Hz.
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post #14 of 27 Old 06-29-2020, 04:28 AM
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I agree with most posters here: chest slam can be felt at pretty much any frequency as long as it's loud enough, but typically around 60-80Hz, where it doesn't need to be super loud to be felt.
Short example: I am a drummer and my snare drum's fundamental frequency (tone/tuning) sits at 200Hz. When I hit it, I feel it with my entire body, including my chest.
Another example: I love to use the track "Trojans (Hard Mode)" by The Algorithm as demo track to showcase tight mid-bass. The kick drum in that song is centered at 63Hz and when loud enough produces good chest-slam, especially on the fast parts when you have a good woofer.

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post #15 of 27 Old 06-29-2020, 05:32 AM - Thread Starter
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Hmmm that makes me think now if my SPL is high enough? I listen to volume set to -10 on the receiver and I don't think I get anywhere near the 105dB. Because even at -10 I find thing loud and anything more would result in discomfort.



I do think my system is capable enough to produce this but now I am wondering if my settings are correct, but then again would I want to get to 105dB? as that's where you do actual damage to your hearing.


Also my room might be a bit challenging (Curent layout: 1 - Monolith Plus, 3 - XTZ 12.17 edge) :

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post #16 of 27 Old 06-29-2020, 05:34 PM
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Quote:
Originally Posted by John24ssj View Post
Hmmm that makes me think now if my SPL is high enough? I listen to volume set to -10 on the receiver and I don't think I get anywhere near the 105dB. Because even at -10 I find thing loud and anything more would result in discomfort.



I do think my system is capable enough to produce this but now I am wondering if my settings are correct, but then again would I want to get to 105dB? as that's where you do actual damage to your hearing.


Also my room might be a bit challenging (Curent layout: 1 - Monolith Plus, 3 - XTZ 12.17 edge) :
If your system were capable of accurate playback at -10 MV with subs calibrated only 5 dB hot(many run them much hotter), you would be playing peaks of 110 dB. A few dB higher than this if running DEQ. A few dB higher yet due to bass redirected from all speakers set to small.
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post #17 of 27 Old 06-29-2020, 06:16 PM
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Quote:
Originally Posted by peniku8 View Post
I agree with most posters here: chest slam can be felt at pretty much any frequency as long as it's loud enough, but typically around 60-80Hz, where it doesn't need to be super loud to be felt.
Short example: I am a drummer and my snare drum's fundamental frequency (tone/tuning) sits at 200Hz. When I hit it, I feel it with my entire body, including my chest.
Another example: I love to use the track "Trojans (Hard Mode)" by The Algorithm as demo track to showcase tight mid-bass. The kick drum in that song is centered at 63Hz and when loud enough produces good chest-slam, especially on the fast parts when you have a good woofer.
+1 in my case, for my room

I run my subs +3dB hot, with a +3dB PEQ boost at 60Hz with a large bandwidth for extra chest slam. Seem to work perfectly for me, after trying many different settings. A key word you mention, was loud enough. Chest slam just like bass tactile effect to feel it through your chairs, cannot happen without the proper amount of sound level.


Darth

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post #18 of 27 Old 06-29-2020, 06:44 PM
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Can't confirm the validity of the diagram but I feel its good for me. 50-100hz. You should watch the spectrum of your music to test.



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post #19 of 27 Old 06-29-2020, 08:34 PM
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Quote:
Originally Posted by peniku8 View Post
I agree with most posters here: chest slam can be felt at pretty much any frequency as long as it's loud enough, but typically around 60-80Hz, where it doesn't need to be super loud to be felt.
Short example: I am a drummer and my snare drum's fundamental frequency (tone/tuning) sits at 200Hz. When I hit it, I feel it with my entire body, including my chest.
Another example: I love to use the track "Trojans (Hard Mode)" by The Algorithm as demo track to showcase tight mid-bass. The kick drum in that song is centered at 63Hz and when loud enough produces good chest-slam, especially on the fast parts when you have a good woofer.
since you are a drummer, how accurate is the kick drum at the end of Bohemian Rhapsody? That kick drum makes me happy

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post #20 of 27 Old 06-29-2020, 10:15 PM
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What gain is your sub set? If you have some head room it would be pretty easy to crank your subs up and do some demos to see if more output would give you a better experience.

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post #21 of 27 Old 06-30-2020, 12:57 AM
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Quote:
Originally Posted by John24ssj View Post
Quote:
Originally Posted by markmon1 View Post
The deeper the bass, the more it travels through objects and moves objects and the more you feel it. Since you say you haven't felt it at all and looking at your graphics which are weak near 20hz, I'd say that the frequencies you are lacking are those you wish you had.

The graphics are just for a single sub the XTZ that can be port tuned.



With them both I get this frequency response as seen in the attached image:
The 10db troughs between 40-80 will not help.
Can you move them.
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post #22 of 27 Old 06-30-2020, 02:46 AM - Thread Starter
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Originally Posted by mevansmusic View Post
What gain is your sub set? If you have some head room it would be pretty easy to crank your subs up and do some demos to see if more output would give you a better experience.
Both are on around 9 oclock and after Audyssey I get -8dB on the subwoofer trim. So I got around 8dB headroom I believe. I mean yes I could push the trim much higher but I found it completely ruins music and the bass becomes way too overemphasized.




Quote:
Originally Posted by Philips752 View Post
The 10db troughs between 40-80 will not help.
Can you move them.
Currently the best I could do is this:
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post #23 of 27 Old 06-30-2020, 05:31 AM
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Quote:
Originally Posted by phatfreeza View Post
since you are a drummer, how accurate is the kick drum at the end of Bohemian Rhapsody? That kick drum makes me happy
The very last kick drum hit in the song? It sounds like a pretty much un-processed kick mic located close to the resonance head. The last hit has more smack in the 1khz region since it's simply played louder. What exactly do you mean by accurate? I can't say I like the sound, either as a drummer or as a mixing enginner. Michael Jackson's Off the Wall was released just a few years later but the production quality is stellar, even seen from today. Queen's production quality can't touch that.
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post #24 of 27 Old 06-30-2020, 07:04 AM
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Chest thumping bass does not come from anywhere close to the 20-40hz frequency range so I am not sure how that option is leading the Poll. Chest thump frequencies are centered around 80hz. Now that doesn't mean you can't take a gun shot scene(JW1 club scene for example) and digitally mix lower frequencies into the fundamental for added depth. That is where some get confused...the bass frequencies you feel that punch you in the chest are above 60hz. 20-40hz bass is all pressure and vibration...those are the frequencies that will give you the underwater pressure effect on your ears.
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post #25 of 27 Old 06-30-2020, 02:42 PM
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Quote:
Originally Posted by peniku8 View Post
The very last kick drum hit in the song? It sounds like a pretty much un-processed kick mic located close to the resonance head. The last hit has more smack in the 1khz region since it's simply played louder. What exactly do you mean by accurate? I can't say I like the sound, either as a drummer or as a mixing enginner. Michael Jackson's Off the Wall was released just a few years later but the production quality is stellar, even seen from today. Queen's production quality can't touch that.

He may be referring to the Bohemian Rhapsody DVD, not the song (but I could be mistaken). At the end of the DVD at the Live Aid concert the kick drum and bass guitar are just awesome and is my go to demo for chest slam from music. I normally listen at a MV of -18 to -20 with the sub running ~ 8db hot, yet I can still get very good midbass feel at these levels.


Quote:
Originally Posted by basshead81 View Post
Chest thumping bass does not come from anywhere close to the 20-40hz frequency range so I am not sure how that option is leading the Poll. Chest thump frequencies are centered around 80hz. Now that doesn't mean you can't take a gun shot scene(JW1 club scene for example) and digitally mix lower frequencies into the fundamental for added depth. That is where some get confused...the bass frequencies you feel that punch you in the chest are above 60hz. 20-40hz bass is all pressure and vibration...those are the frequencies that will give you the underwater pressure effect on your ears.

Agree. As others have mentioned in the past, around 80hz gives you bass that slams you in the chest. Low frequency and ULF creates bass that makes your chair move.
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post #26 of 27 Old 06-30-2020, 05:59 PM
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This poll will only add to the op's confusion on the subject.

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post #27 of 27 Old 07-01-2020, 08:54 PM
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Quote:
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Well this shows things different:
https://www.youtube.com/watch?v=Afy10voc5kc
His testing is wrong. That video comes down to Steve not understanding what people are asking. He's just looking at SPL IN A MOVIE and thats not what people want to know. He's got a lot of really good videos but thats not one of them.
He should have done testing at each frequency (20hz, 30hz, 40hz etc) from 20hz to 150hz with the same SPL, not just play a movie and find the loudest SPL, thats a pointless test. Then try and find the frequency that "feels" the most in the chest. It is not 30hz lol. I've done that exact test with about 20 people at an audio meet, it was 50-60hz in all but 1 (who's was 70hz). Also, it was impressive once you got into the 200hz how it hitting at a high spl, would make you instantly blink lol. It also matters what kind of sub you have preforming the tests. We were using my JTR OS pro's. Them @ 60hz vs my 4 x 24's @ 60hz at the same spl was a completely different feel, the OS pros had FAR more feel.

It's 100% 50-150hz. Some may argue but they are wrong.

Blasting brown notes for 20 years and counting!
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