DBO, Dynamic Bass Optimization

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=68774
Printed Date: May 13, 2025 at 12:25 PM

Topic: DBO, Dynamic Bass Optimization

Posted By: coppellstereo
Subject: DBO, Dynamic Bass Optimization
Date Posted: December 20, 2005 at 1:00 AM

Anyone know anything about this from JBL?

Dynamic Bass Optimization (DBO) - The rear two channels this amp includes DBO which provides variable filtering with adjustable "Q" below 100Hz, far beyond conventional "Bass Q" circuits, by allowing the low-frequency output to be optimized for specific subwoofer applications. Frequencies below an enclosure's tuning frequency can be attenuated, preventing damage to the subwoofer and allowing the amplifier''s power to be better utilized.

Dynamic Bass Optimizer™ (DBO) is a new approach to enhancing lowfrequency reproduction in a vehicle. Conventional bass boost controls add bass at a fixed frequency and cause the amplifier to consume considerable power. DBO conserves valuable power at the lowest frequencies and allows you to adjust the level and “character” of the bass sound, instead of just the amount of boom."

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Replies:

Posted By: coppellstereo
Date Posted: December 20, 2005 at 4:24 AM

I understand it - thanks! It is similar to how my EQ in my HU works. Do you think this is a feature worth having? Will it keep the bass accurate, or just give me one more thing to potentially screw up when tuning?

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Posted By: KarTuneMan
Date Posted: December 20, 2005 at 9:28 AM

Its NOT a subsonic filter....think about it....filter! Its a nice way to "tune" the low end. Different vehicles have different characteristics. I can't imagine haveing the center @ 40cycles.....I don't care what kind of subs, and enclosure your running. Depending on your setup, start with your center at say 60, wide! Move the center up or down, more than likely up. then tune your Q. Move wide towards narrow.

Once you get it figured out.....youll love the feature. and remember.......its just my opinion.

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Posted By: coppellstereo
Date Posted: December 20, 2005 at 11:21 AM

i was just comparting 2 different JBL amps, unfortunately i cant afford the model that has DBO - i was just seeing if it would make that big of difference.

Thanks

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Posted By: coppellstereo
Date Posted: December 20, 2005 at 1:33 PM

Well, it is for my girlfriend who has a Sony. But she may upgrade soon

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Posted By: DYohn
Date Posted: December 21, 2005 at 11:30 AM

DBO is a single band parametric equalizer. It's designed to help smooth out the low frequency response and remove peaks (or help control cabin gain) in a system intended for high sound quality. As mentioned above, it is not a subsonic filter.

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Posted By: coppellstereo
Date Posted: December 21, 2005 at 1:28 PM

Well, I didnt end up getting the amp that has this feature. I hope we'll be ok! I'm sure we wont miss a feature that we've never had before nor experienced

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