Chromecast Audio to BeoLab volume

14 replies

Anybody using Chromecast Audio dongles to drive Beolab speakers? I use them with Beolab 4000 and Beolab 4. This setup has served me well for a few years now, but I noticed a minor problem. 

It appears that the audio signal delivered by the Chromecast Audio is larger than a 'standard' BO signal. To deal with that situation, the volume setting in the streaming application (Deezer, Google Music) must be extremely low, otherwise the speakers play way too loud. 

I researched this phenomenon on the internet. I believe to understand that the the Beolab speakers are designed for a 1V signal, i.e. maximum loudness corresponds to a 1V signal. The Chromecast Audio, on the other hand, delivers up to 2.8V.

I often wish to reduce the volume but the setting is already at the minimum. Also the volume 'granularity' is coarse since the majority of the settings are excessively loud and therefore essentially useless. Not to mention what happens if the setting is accidentally high when the speakers turn on. 

I am wondering if others have observed the same and found a solution to the problem. Is there a way to attenuate the Chromecast Audio outputi n software? Or should the signal strength be reduced by an additional attenuator? Can the Beolab sensitivity be changed?

Just in case it matters, I deliver the audio signal to the Beolab's via the RCA input rather than Powerlink. 

Any feedback is appreciated. Thank you 

Dirk

Pretty hard to control a setup like that!

Best use a preamp for volume control - when you use Beolab speakers, a B&O sound system is predestined for that task.

I can be any with Powerlink outputs.

I know....many want to avoid this to get a ‘slim’ setup - but if you want the optimal handling of the volume controlling nothing beats a Beosystem as the preamp.

 

P.S. You describe the problem as ‘minor’ - hoever, what I read in your post, is that it bothers you quite a lot.

 

MM 

Location: Flensborg————Danmark

Rather than criticise your setup I suggest you try turning off "

Hi,

I also use CCA as multiroom audio solution in my home with BL3 + Sub, 2 pairs of BL4000 and BL4500.

Had same issue as you, but solved by adding this in-line volume control between all CCA's and the BL's

I cannot hear any degrade in sound quality.

https://m.aliexpress.com/item/33002289520.html?spm=a2g0n.productlist.0.0.5187398cmHAQtq&browser_id=c7d6d7cb43184b8e85b18798d67ea969&aff_trace_key=&aff_platform=msite&m_page_id=gmgfzmrxr8cadrwl176c3e5d627610cbfbc1172943&gclid=&_imgsrc_=ae01.alicdn.com%2Fkf%2FHc945c1f55bcd40cf8567ca01310a46bbV.jpg_640x640Q90.jpg

 

 

Hi Puncher, 

thank you for brining this to my attention. I have FDR enabled, it makes the sound richer but seems to have no impact on the loudness.

depe wrote:

Hi Puncher, 

thank you for brining this to my attention. I have FDR enabled, it makes the sound richer but seems to have no impact on the loudness.

Are you certain you've disabled it ?

Hi Ravsted, 

I was worried that the signal attenuation would have a negative impact on the sound quality. Great to learn from you that this is a non issue. I am tempted to build the attenuator into the end of the cable, integrated into the RCA connector, as explained here:

https://www.instructables.com/Homemade-RCA-Attenuator/

Just requires two resistors and a bit of soldering. Did you consider something like this?

Thanks

Dirk 

Puncher:

FDR on vs off seems to not change the volume of the speaker. 

depe wrote:

Hi Ravsted, 

I was worried that the signal attenuation would have a negative impact on the sound quality. Great to learn from you that this is a non issue. I am tempted to build the attenuator into the end of the cable, integrated into the RCA connector, as explained here:

https://www.instructables.com/Homemade-RCA-Attenuator/

Just requires two resistors and a bit of soldering. Did you consider somethinge this?

Thanks lik

Dirk 

If you are capable of constructing this then that is ideal and far better than the FDR setting in the Chromecast and you should then leave FDR selected. The values given are reasonable starting points, just be sure to connect the cables to the correct ends. This is better than the inline volume control too as there is no potentiometer wiper connection to degrade over time.

Or you could buy from

Hi Depe,

I did consider soldering an attenuator but came across these inline regulators when searching eBay and AliExpress.

They are a 1 dollar per speaker pair - hassle free - plug/play investment ....

ONE DOLLAR 🙂

So, I gave it chance, and it has worked just fine for years. And should it degrade over time, I'll find another dollar in my budget and replace it where needed 🙂

There are many 'versions' available - I wanted and got a version where the total cable length is only 8 inches/20cm.

Should you prefer another solution - then keep us posted about the result.

 

 

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