Beolab20 Bass issues

12 replies
> I do realize that the Avant has in Sound settings an option to enable/disable loudness

This will "only" increase the levels of the low and high frequency bands at lower volume settings, as is described in the Beovision Technical Sound Guide.

> as well as clipping protection

This will "only" prevent the analog and wireless power link levels from clipping due to a combination of high signal levels, increases in the tone controls, and playing at maximum volume.

It's difficult for me to diagnose whether or not there is actually a technical problem, or whether this thread is a discussion of a mismatch between your preferences / expectations and the sound design & capabilities of the loudspeakers. Changing the source will not increase the maximum possible amount of bass that the Beolab 20s can produce - but it's possible that the settings in your current source (which I assume is a Beovision Avant, based on your comment) are reducing the bass level. However, if this is true, then the Avant is configured to reduce the bass at all volume settings.

In order to make sure that you're not dealing with incorrect settings in the Avant, create a new Speaker Group with only two loudspeakers (the BL20s) set to Left Front & Right Front - and then choose the Music Sound Mode (and reset it to the default settings).

Also, check your global Bass and Treble settings on the Beovision Avant to make sure those are set to the default values.

From there, you can tweak the settings to your preferences. However, if this does not give you the desired amount of bass at extreme volume settings, it's because you're hitting the physical limits of the loudspeakers.

Of course, the placement of the loudspeakers in your room will result in changes in the overall spectrum - but there's no way to diagnose this or make any recommendations remotely. Generally, the old rule of putting loudspeakers in corners will give you more bass - but it's typically a very "boomy" and uncontrolled bass due to the coupling to room modes.

cheers

-geoff

PS. I've (hopefully) disabled the comments on my website - but I might have missed a page or two here or there by accident.
PLEASE READ before sending me a Personal Message.

If you have questions about or problems with B&O equipment, these should be directed through your dealer and/or B&O's Customer Service department.

I cannot be a "short circuit", bypassing these communication channels.

Thanks
-geoff
Thanks everyone for the suggestion. I paired the speakers to a beosound moment and guess what? the BL20's sound awesome.

It's not my imagination or a placebo effect because I can hear stuff rattling and shaking in the room. I immediately reset the Avant NG ( reinstall TV) but unfortunately that didn't help.

For here I think it's either the TV is doing something really nasty or I just need to live with it and use the internal speakers. I'll keep the BL20's for music only on BS moment.
Engineering since ever...
or
BeoWorld Gold Membership card
Join BeoWorld

Register to access the forums, reference material, and exclusive member benefits — including our monthly prize draw.

Become a Member

December 2026 Prize Draw

Gold Members Only

As a Gold member you're automatically entered into our exclusive prize draw — your chance to win iconic Bang & Olufsen products. A unique benefit of BeoWorld Gold membership, every draw brings a new opportunity to win something special.