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Beolab 2 resonance

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ClausH
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ClausH Posted: Wed, Nov 14 2018 8:06 PM

Has a setup with Beolab 2+3. The 3s seems really good at the treble and the middle tone. But the 2 gives on a lot of music a resonance in bass tones. It is very annoying. It is on the low settings and pulled some distance free from the walls but still with some annoying resonance. Anyone who has experienced the same - maybe a good solution without turning it off ?

leosgonewild
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Resonance from what? Surroundings or sub itself?

"You think we can slap some oak on this thing?"

ClausH
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ClausH replied on Wed, Nov 14 2018 9:52 PM

It is the sub for sure. I dont know if the room can make the sub make the resonance, but it certainty comes from the membran on the sub and it looks like it is in perfect condition.  

bramble
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bramble replied on Wed, Nov 14 2018 10:01 PM
Sounds like a strip down and a close look inside.[:\'(]

Beovision 7 40 mk 5 ,beovision 6x3,   beosound 3000, beogram 3300 , 2 x lc2, 2 x beocom 1401, beocom 6000 x 2,  5 x beo4, 

, 4 x beolab 4's, form 2, h2, a2,a1 and a beolab 2 ๐Ÿ˜€๐Ÿ˜€

 

 

 

davidr
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davidr replied on Thu, Nov 15 2018 2:00 AM

As suggested, is it the BL2 or your room, I'm going to immediately assume it is the room.

I had a BL2 and because of its strong sub output (I would hope so) I recall the room responded at something like 80 and 40hz. Even today with BL9 there's no getting around acoustics. Regardless of make, the physical placement of subs makes a world of difference. Other than physical changes there's no way to really 'filter' that out. You can certainly try but that only sort of reduces the true issue and you mess with the original music.

The BL2 is a sealed and competent design so resonates are mostly avoided by such.

If you have the ability to run a slow sine sweep at decent volume from say 100-10hz it is very obvious where the room resonates.

ClausH
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ClausH replied on Thu, Nov 15 2018 8:48 AM

Hey David - I think (unfortunately) you are quite right. Though it seems strange what acoustics can do so when It sounds like it is the membrane itself. The sub is very solid. I can see some complaints about rumbling from this sub, but this is more like specific low frequencies that vibrate more than the content of the audio file. Maybe this sub is difficult to handle i smaller rooms and the system works better without. 

leosgonewild
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Try moving it around Smile

I had it in a small room, all cupboards was shaking like crazy.

"You think we can slap some oak on this thing?"

Millemissen
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Get yourself a BL11 (or two) instead.

MM

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ClausH
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ClausH replied on Thu, Nov 15 2018 3:31 PM

Hey Millemissen

I thought about the Beolab 11 but the dealer said that it was not good - and it was in a B&O shop.

But the membrans and the cabinet in the 11 are bigger that in the 3´s so it must have som positive effect. Have you tried the 11 wih the 3´s ?

Jeff
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Jeff replied on Thu, Nov 15 2018 3:49 PM

One of the ways to figure out where to put your sub in the room is this. Put the subwoofer where your listening position is, then play music with bass and walk around until you find the spot in your room where the bass sounds best to you, then move your sub there. Might not be a good place (aka middle of the floor) or still might not solve the problem but it's something to try.

Jeff

I'm afraid I'm recovering from the BeoVirus. Sad

Michael
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Michael replied on Thu, Nov 15 2018 5:33 PM
Make a video of it and upload it to YouTube so we can see what youโ€™re asking about. This issue seems odd and a video with the sound and speaker would be beneficial to solving the matter.

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Millemissen
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ClausH:

Hey Millemissen

I thought about the Beolab 11 but the dealer said that it was not good - and it was in a B&O shop.

But the membrans and the cabinet in the 11 are bigger that in the 3´s so it must have som positive effect. Have you tried the 11 wih the 3´s ?

That is bs....imho!

Not with my 3’s, but I have one with the 6002’s in a rather smallish room (using the basmanagement of the BSystem 4).

It blends perfectly in with the other speakers just like a sub should do.

I’d like to have two of them ๐Ÿ™‚ Maybe some day!

Two subs always helps to avoid standing waves/room modes in a room.

MM

There is a tv - and there is a BV

Millemissen
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Michael:
Make a video of it and upload it to YouTube so we can see

I’d like to see Jeff do some sub crawling ๐Ÿ˜‚

MM

There is a tv - and there is a BV

Jeff
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Jeff replied on Fri, Nov 16 2018 12:06 AM

Millemissen:

Michael:
Make a video of it and upload it to YouTube so we can see

I’d like to see Jeff do some sub crawling ๐Ÿ˜‚

MM

Pub crawling is more fun! But hey, I've seen it work!

 

Jeff

I'm afraid I'm recovering from the BeoVirus. Sad

Hiort
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Hiort replied on Fri, Nov 16 2018 7:47 AM
ClausH:

Have you tried the 11 wih the 3ยดs ?

I had my BL3s for quite some time without sub. I then added the BL11 and it really added to the experience. BL11 is a really good sub for music and the possibility to place it on a wall bracket is really nice.

If you have a smaller room that is a better option than BL2 I would say.

 

 

 

 

Livingroom: BL3, BL11, BV11-46 Kitchen: Beosound 1 GVA, Beocom 2 Bathroom: M3 Homeoffice: M3, Beocom 2  Library: Beosound Emerge, Beocom 6000 Bedroom: M5, Essence remote  Travel: Beoplay E8 2.0, Beoplay EQ, Beoplay Earset

Millemissen
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Jeff:

Millemissen:

Michael:
Make a video of it and upload it to YouTube so we can see

I’d like to see Jeff do some sub crawling ๐Ÿ˜‚

MM

Pub crawling is more fun! But hey, I've seen it work!

You could start here:

http://www.thepubnsub.com/

MM

There is a tv - and there is a BV

leosgonewild
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Millemissen:

You could start here:

http://www.thepubnsub.com/

MM

There is a tv - and there is a BV.

Big SmileBig SmileBig Smile

"You think we can slap some oak on this thing?"

ClausH
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ClausH replied on Fri, Nov 16 2018 11:58 AM

Hi Hiort

It seems like the way to go. The 11 is beautiful too. 

It is strange though to produce such an expensive subwoofer without the settings for optimal performance in all normal rooms. Perhaps the 2 is also very critical with the quality of the medium you use to play music with and how its recorded.

I think I will borrow a beolab 11.

Thank you all for the good responce to the problem. 

Millemissen
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ClausH:

It is strange though to produce such an expensive subwoofer without the settings for optimal performance in all normal rooms. 

I think I will borrow a beolab 11.

The BeoLab 2 is long gone.

Its successor is the BL19 - however, that probably would be too ‘powerfull’ for a smallish room.

Please let us know how you get along with the BL11, then.

MM

There is a tv - and there is a BV

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