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