elegant way to stop the bass ?

[amy]

Archived from groups: rec.audio.pro (More info?)

Is there any elegant way to stop the bass from the back of loudspeaker ?
Bass is Omnidirectional, and in my case, the bass from the back of
loudspeaker goes to a very hard ceiling and makes very horrible sound.
Having wrapping and covering the back and sides of the loudspeaker,
except the front, with a heavy blanket, the problem is solved.
It just it look very ugly to cover a loudspeaker with a blanket. Is
there any professional way to do so ? Any suggestions would be very much
appreciated

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

Yes!

There are several options, like Auralex carries some corner Bass Traps
(foam looks okay). There are other outfits like e-foam (I believe
that's what's called), and there is an e-bay outfit called Foam by Mail

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3278&item=7302946483.

If you want to build your own Bass Traps there are many ways to do it,
but the most elegant is using some Corning 703 Stiff Fiber-glass. The
Stiff Fiberblass comes in bundles and a bundle will cost you
approximately $128.00 (but you won't find it a Home Depot or Lowes).
You can make a Bass Trap with a 703 Stiff Fiber-glass (cover it with
some cloth to your liking) and hang it on the wall or place it on a
corner. The cost for Bass Traps is going to end up being the same no
matter which way you go.

Good Luck!

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

there are speakers that use "transmission lines" to tame the bass
throwback. basically, the cabinet has a labyrinth that the rear-firing
bass energy goes through and gets killed off in the process.

these are usually expensive speakers (at least $1200 a pair, sometimes
$6000).

just something to know about.

 

[JohnN]

Archived from groups: rec.audio.pro (More info?)

http://www.svconline.com/mag/avinstall_bass_not/

amy wrote:
> Is there any elegant way to stop the bass from the back of loudspeaker ?
> Bass is Omnidirectional, and in my case, the bass from the back of
> loudspeaker goes to a very hard ceiling and makes very horrible sound.
> Having wrapping and covering the back and sides of the loudspeaker,
> except the front, with a heavy blanket, the problem is solved.
> It just it look very ugly to cover a loudspeaker with a blanket. Is
> there any professional way to do so ? Any suggestions would be very much
> appreciated
>

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

amy wrote:
> Is there any elegant way to stop the bass from the back of loudspeaker ?

Why not use bass traps [1]?

[1] <http://auralex.com/category_bass_traps/category_bass_traps.asp>,
<http://primacoustic.com/diffbass.htm>

Johann
--
*fluechegegenmseinfueg* ich glaub ich hau mir nen dualboot mit linux
drauf....mistwindoofelendigesdrexding
(Sascha Kraeling in <bvj1kb$pcc$1@ulysses.news.tiscali.de>)

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

<genericaudioperson@hotmail.com> wrote:
>
>there are speakers that use "transmission lines" to tame the bass
>throwback. basically, the cabinet has a labyrinth that the rear-firing
>bass energy goes through and gets killed off in the process.

Sort of, but not really. There used to be a really nice intro to
transmission line speaker design on www.quadesl.com.

>these are usually expensive speakers (at least $1200 a pair, sometimes
>$6000).

Actually, you could argue that those awful Bose table radios use transmission
line configurations of some sort.
--scott`

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

amy <amy91912001@yahoo.com.tw> wrote:
>Is there any elegant way to stop the bass from the back of loudspeaker ?

Sure, with a bass horn. You wind up with cabinets that are twenty feet
across, but you get much better efficiency and better low end control.
Oh yes, and you don't get much bass extension either.

> Bass is Omnidirectional, and in my case, the bass from the back of
>loudspeaker goes to a very hard ceiling and makes very horrible sound.
>Having wrapping and covering the back and sides of the loudspeaker,
>except the front, with a heavy blanket, the problem is solved.
>It just it look very ugly to cover a loudspeaker with a blanket. Is
>there any professional way to do so ? Any suggestions would be very much
>appreciated

If the wrapping is actually doing something, it's probably not really
a bass problem.

But if you have room problems, bass trapping might be worth looking at.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

On Fri, 25 Feb 2005 22:24:14 +0800, amy <amy91912001@yahoo.com.tw>
wrote:

>Is there any elegant way to stop the bass from the back of loudspeaker ?
> Bass is Omnidirectional, and in my case, the bass from the back of
>loudspeaker goes to a very hard ceiling and makes very horrible sound.
>Having wrapping and covering the back and sides of the loudspeaker,
>except the front, with a heavy blanket, the problem is solved.
>It just it look very ugly to cover a loudspeaker with a blanket. Is
>there any professional way to do so ? Any suggestions would be very much
>appreciated

Blankets don't have much effect at bass tones. What kind of
loudspeaker are you describing? Does it have a box around it?

Are you actually discussing the radiation of tones from the
sides of a wooden box?

Why the ceiling?

Chris Hornbeck

 

[amy]

Archived from groups: rec.audio.pro (More info?)

Thanks for your post.
It was a MeyerSound CQ1 on a ceiling mount above the stage.
We have to apply heavy EQ at low end to prevent feedback
but with a blanket wrapping the rear side, EQ could be removed !
Has anyone similar experience ?


Chris Hornbeck wrote:

> On Fri, 25 Feb 2005 22:24:14 +0800, amy <amy91912001@yahoo.com.tw>
> wrote:
>
>
>>Is there any elegant way to stop the bass from the back of loudspeaker ?
>> Bass is Omnidirectional, and in my case, the bass from the back of
>>loudspeaker goes to a very hard ceiling and makes very horrible sound.
>>Having wrapping and covering the back and sides of the loudspeaker,
>>except the front, with a heavy blanket, the problem is solved.
>>It just it look very ugly to cover a loudspeaker with a blanket. Is
>>there any professional way to do so ? Any suggestions would be very much
>>appreciated
>
>
> Blankets don't have much effect at bass tones. What kind of
> loudspeaker are you describing? Does it have a box around it?
>
> Are you actually discussing the radiation of tones from the
> sides of a wooden box?
>
> Why the ceiling?
>
> Chris Hornbeck

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

amy <amy91912001@yahoo.com.tw> wrote:
>It was a MeyerSound CQ1 on a ceiling mount above the stage.
>We have to apply heavy EQ at low end to prevent feedback
>but with a blanket wrapping the rear side, EQ could be removed !

>Has anyone similar experience ?

Sounds like you have a lower midrange resonance somewhere. Try using
a notch filter, or use a parametric EQ to make a notch that is deep but
not wide. I bet a nickel when you sweep around you'll find the real problem
is between 100 and 500 Hz and isn't real bass at all.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

>amy wrote:
>> Is there any elegant way to stop the bass from the back of loudspeaker ?
>> Bass is Omnidirectional, and in my case, the bass from the back of
>> loudspeaker goes to a very hard ceiling and makes very horrible sound.
>> Having wrapping and covering the back and sides of the loudspeaker,
>> except the front, with a heavy blanket, the problem is solved.
>> It just it look very ugly to cover a loudspeaker with a blanket. Is
>> there any professional way to do so ? Any suggestions would be very much
>> appreciated

Somebody makes a stand that covers the back of the amp, and ducts the
rear sound out through ports in the front. Can't remember where I saw
this, but a bit of Googling might find it.


Willie K. Yee, M.D. http://users.bestweb.net/~wkyee
Developer of Problem Knowledge Couplers for Psychiatry http://www.pkc.com
Webmaster and Guitarist for the Big Blue Big Band http://www.bigbluebigband.org

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

Willie K.Yee, M.D. wrote:
> >amy wrote:
> >> Is there any elegant way to stop the bass from the back of
loudspeaker ?
> >> Bass is Omnidirectional, and in my case, the bass from the back
of
> >> loudspeaker goes to a very hard ceiling and makes very horrible
sound.
> >> Having wrapping and covering the back and sides of the
loudspeaker,
> >> except the front, with a heavy blanket, the problem is solved.
> >> It just it look very ugly to cover a loudspeaker with a blanket.
Is
> >> there any professional way to do so ? Any suggestions would be
very much
> >> appreciated
>
> Somebody makes a stand that covers the back of the amp, and ducts the
> rear sound out through ports in the front. Can't remember where I saw
> this, but a bit of Googling might find it.
>
>
> Willie K. Yee, M.D. http://users.bestweb.net/~wkyee
> Developer of Problem Knowledge Couplers for Psychiatry
http://www.pkc.com
> Webmaster and Guitarist for the Big Blue Big Band
http://www.bigbluebigband.org

It's the Enhancer. I blocks the back of the amp and channel the sound
from the back to a port in the front. It also makes the amp sound
bigger. Here's the link.

http://www.smithsoundproducts.com/products.htm

Stan

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

>>> Is there any elegant way to stop the bass from the back of loudspeaker ?
>>> Bass is Omnidirectional, and in my case, the bass from the back of
>>> loudspeaker goes to a very hard ceiling and makes very horrible sound.
>>> Having wrapping and covering the back and sides of the loudspeaker,
>>> except the front, with a heavy blanket, the problem is solved.
>>> It just it look very ugly to cover a loudspeaker with a blanket. Is
>>> there any professional way to do so ? Any suggestions would be very much
>>> appreciated
>
>Somebody makes a stand that covers the back of the amp, and ducts the
>rear sound out through ports in the front. Can't remember where I saw
>this, but a bit of Googling might find it.

If these speakers sound bad close to a wall/ceiling, must they be
mounted there? The professional way is to mount the speakers in an
appropriate position, or choose a speaker designed to have its bass
emphasised by being near to a wall.

CubaseFAQ www.laurencepayne.co.uk/CubaseFAQ.htm
"Possibly the world's least impressive web site": George Perfect

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

On 3 Mar 2005 16:47:11 -0800, skingfong@yahoo.com wrote:

>It's the Enhancer. I blocks the back of the amp and channel the sound
>from the back to a port in the front. It also makes the amp sound
>bigger. Here's the link.
>
>http://www.smithsoundproducts.com/products.htm

It's quite expensive, so it MUST be good

It rather ignores the point of open-back combo amps. They're made
that way because it makes the sound guitarists want, not because it
makes them loud. In fact, many guitar combos are designed to deliver
the "overdriven" sound without being so loud that you can't get a good
mix in the main pa system.

These are not designed to correct wall-mounted speakers. We need to
treat the room (as the op says, a cushion stuffed behind the speaker
may be sufficient), to mount the speaker in a different position or to
choose a different speaker.

CubaseFAQ www.laurencepayne.co.uk/CubaseFAQ.htm
"Possibly the world's least impressive web site": George Perfect

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

>
> It rather ignores the point of open-back combo amps. They're made
> that way because it makes the sound guitarists want, not because it
> makes them loud.


is there a difference?
george

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

On Fri, 04 Mar 2005 14:26:54 GMT, George Gleason wrote:

>>
>> It rather ignores the point of open-back combo amps. They're made
>> that way because it makes the sound guitarists want, not because it
>> makes them loud.
>
>
> is there a difference?
> george

Oldie but Goodie:

Q: How do you make a guitarist turn down his amp?

A: Put a sheet of music in front of him.


Bob

 

[Guest]

Archived from groups: rec.audio.pro (More info?)

On 3/3/05 6:47 PM, in article
1109897231.241290.14300@z14g2000cwz.googlegroups.com, "skingfong@yahoo.com"
<skingfong@yahoo.com> wrote:


> It's the Enhancer. I blocks the back of the amp and channel the sound
> from the back to a port in the front. It also makes the amp sound
> bigger. Here's the link.
>
> http://www.smithsoundproducts.com/products.htm

Ha ha! I kind of forgot about this one.

I remember some years ago when this guy came to the studio looking for some
test measurements. None of the other engineers had any idea how to set this
done, so I did it. My endorsement is on one of the pages. (They misspelled
my name at the top but got it right in the text.)

I thought it was a pretty clever idea and he (Bob Smith?) was a nice guy.


Allen
--
Allen Corneau
Mastering Engineer
Essential Sound Mastering
Houston, TX