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Old 19th December 2012, 09:04 PM   #1
batam is offline batam  France
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Default How to obtain Punchy Bass ?

Hi,

according to you, what would be the criteria for a speaker to render very "punchy" bass (not the extreme low frequencies, but more like 100Hz), something that really punches you at every impact ?
Something you can feel in your chest (like the percussions in Cherry Bomb or Hurt So Good from John Cougar Mellencamp).

The fact is, I am using B&W 684 right now cause I like their highs and mids (not tiring) and unfortunately, I feel like the lack of Impact.
They are installed in a rectangular 14m2 room(my desk), positioned on the shortest side and can hardly be moved.

So, I am wondering if I could find commercial or DIY speakers that will render that sound I like (my 12" Focal Utopia 33VX subwoofer doesn't give the impact, only very low frequency like it's good for home cinema).

Thanks for your replies.
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Old 19th December 2012, 09:47 PM   #2
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Punchy bass occurs at considerable volume - when its quiet, you won't feel it.

A 12" midbass per side would probably do what you're after - you could add a 12" midbass, cross to the B&Ws at, say, 300Hz, and gain considerable SPL capability in the ~100Hz region.

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Old 19th December 2012, 10:30 PM   #3
Loren42 is offline Loren42  United States
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A digital EQ.
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Old 19th December 2012, 10:37 PM   #4
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by batam View Post
I feel like the lack of Impact.
maybe you need better.... or different amps

Im certain those monster Krell amps in vendor's bazaar will cure that...but less will do
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Old 19th December 2012, 10:41 PM   #5
cotdt is offline cotdt  United States
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High Qts woofers will give that 100Hz bump you want.
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Old 19th December 2012, 10:44 PM   #6
tinitus is offline tinitus  Europe
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and then he will soon be back asking how do i get rid of that....

Quote:
Originally Posted by Loren42 View Post
A digital EQ.
basicly it 'could' be a room related problem, yes

room EQ ?
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Old 19th December 2012, 10:52 PM   #7
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Cool I can't imagine anything other than

a flat, accurate and neutral reproduction throughout the frequency band, but that's just me.
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Old 19th December 2012, 10:54 PM   #8
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by batam View Post
The fact is, I am using B&W 684 right now cause I like their highs and mids (not tiring) and unfortunately, I feel like the lack of Impact.
now that I have checked the B&W 684 I can fully understand why they don't give you the chest punch
man, its a 2.5way with 6" woofers
they are not designed to play loud at all, sorry

you may have a chance with two subs crossed high about 100-120hz, and main speakers crossed with steep 24db 150hz highpass
my guess is the subs should be big 18" pro woofers, and not 'ordinary' subwoofer stuff
but please, don't crack up the house
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Old 20th December 2012, 12:05 AM   #9
CLS is offline CLS  Taiwan
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When a bass note hits hard to make you feel the impact, it'd be a wide band signal -- a transient response covering low to high frequencies, and all of them are excited simultaneously.

(If there's only bass, then you'd hear a soft and woolly sound, not 'punchy' at all.)

So, reasonably flat response with wide enough band and coherence are all important - to give you a fast rise of all frequencies at the same time.

Therefore, I have a feeling that a good single driver fullrange (small) system usually gives better punch than mulitway speakers in equivalent size, when playing within moderate SPL.

Playing loud, single driver speaker runs out of headroom earlier, then multiway takes the lead. You have to be careful in the xover and overall integration to get that coherence back.
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Old 20th December 2012, 12:12 AM   #10
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Cross the Focal sub higher perhaps and listen to see if there is any difference in impact??
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