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Old 9th November 2006, 06:59 AM   #1
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Default Wow ! Bass from no bass ....!

I wonder if you have come across the concept of using harmonics only and depend on the brain to generate the fundamental frequencies which are absent at low frequencies.
Does this really work well ? Can it audibly be good enough to dump all those 18 inch subs ? I doubt it ! But lets have some discussion on this.

I would feel that the physical presence of REAL low frequencies cannot be duplicated by the MaxxBass system.
Read about the ASIC here
http://www.maxx.com/Content.aspx?id=184

Cheers.
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Old 9th November 2006, 07:04 AM   #2
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Acoustic Energy's Aego M and older series uses this trick for the sub. http://www.acoustic-energy.co.uk/Pro...ies/Aego_M.asp

It has decent looking 4.5" active woofer at the back, powered by chipamps and an oval, large passive radiator in front behind the grill cloth.

Bass was perceived to be slow tho more enjoyable than cheaper pc speakers.

I forgot which processor was used and don't know enough to suggest if a high fidelity version can be done. I used to own a set and can't say i miss the Aego... i've preferred real bass smacking me about
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Old 9th November 2006, 01:30 PM   #3
sreten is offline sreten  United Kingdom
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Quote:
Originally posted by fishball79


Acoustic Energy's Aego M and older series uses this trick for the sub. http://www.acoustic-energy.co.uk/Pro...ies/Aego_M.asp

hi,

There is nothing in the documentation that suggests this is the case.

In fact the original post describers why a person can perceive the
fundamental in music when the speakers does not produce the
fundamental well. It is not a trick, all notes have harmonics at n x
the fundamental frequency.

Octavers produce a note one octave below the fundamental. The
Maxx system appears to suggest it generates harmonics at 1/2
x n mutiples of the fundamental, suggesting the fundamental
is one octave lower, could work, will not sound good though.

/sreten.
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Old 9th November 2006, 01:43 PM   #4
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I'm gonna have to hide behind the heard-it-myself-&-cant-find-the-site-that-explained-it excuse.

My experience was with the Aego 2s which i doubt is any much different from the new M series apart from a more up to date aesthetic design. There really isn't any low bass but you get the perception that there is, if you dont listen closely enough.
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Old 9th November 2006, 01:51 PM   #5
djQUAN is offline djQUAN  Philippines
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I have found somewhere a diy version in the web. haven't gone to building one yet though.

I have lost track to where it was so I can't post any links but somewhere in a headphone diy site.......
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Old 9th November 2006, 02:07 PM   #6
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Surely this goes against the spirit of hifi... adding maybe 25% distortion to the sound?
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Old 9th November 2006, 02:14 PM   #7
djQUAN is offline djQUAN  Philippines
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Quote:
Originally posted by richie00boy
Surely this goes against the spirit of hifi... adding maybe 25% distortion to the sound?

well, if you're adding bass to something that doesn't have any, then I guess it's worth doing...
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Old 9th November 2006, 02:17 PM   #8
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Here is a MaxxBass module for car audio....

http://www.caraudiodesign.co.uk/prod...module-wremote

I don't see the point of it. If your going to spend money on this thing you can surely spend money on better speakers or add a small sub.
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Old 9th November 2006, 02:21 PM   #9
djQUAN is offline djQUAN  Philippines
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well, if you don't have any room for a sub or even a small one, then I guess it might do...... or if you want that small sub to sound a little bigger without taking too much trunk space........there are many reasons. ..

(I'm not promoting this stuff. just giving my 2C )
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Old 9th November 2006, 06:25 PM   #10
freddi is offline freddi  United States
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in home use maxxbass was fun but unit croaked in a week - I think sounded kinda like my OB bass (?) ~ a directional effect of harmonics/lobes. to be fair to OB mine had wing flap.
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