I have a pair of B&O Penta speakers from the late 1980s, Type 6623. One Penta is working beautifully with a phono input from a Sonos Connect. The second Penta speaker stopped working awhile ago with a solid orange status light and no sound. (Research suggests the integrated amplifier in the base of these speakers often fails.)
My initial search has not yet found a replacement BeoLab 150 amplifier. What I'm considering instead is disconnecting the integrated amplifiers on both speakers to attach cables directly to the Penta drivers, making a passive speaker set that could be driven by a Sonos Connect Amp.
I've found related threads here including someone mentioning they experienced a constant humming noise when B&O passive speakers were connected to a Sonos Amp.
I don't feel like investing a ton of money in these thirty year old speakers but I'd like to continue enjoying them with Sonos if possible. Any thoughts on which way to go? If I drive the passive speakers with a Connect Amp, I suppose I could add a Sonos Sub to the room- that would probably be a very nice setup. Thoughts? Thanks in advance.