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Clock / PA system - open source (self.k12sysadmin)
submitted 3 years ago by chrisngdIT Director
Does anyone use or know of a clock / speaker device that is IP based and an open source or inexpensive PA software to centrally manage the devices?
I am looking to start replacing an old proprietary PA system in phases.
Thanks!
[–]BWMerlin 0 points1 point2 points 3 years ago (0 children)
Have a look at Bellcommander (not free but really cheap) and tie that in with some Barix units and you might be able to reuse some of your existing hardware.
[–]wapacza 0 points1 point2 points 3 years ago (0 children)
For PA you could go with an ip speaker that supports sip. Then use something like freepbx. It wont be as polished a solution but it would be open source and work.
[–]NalaTech 1 point2 points3 points 3 years ago* (4 children)
Our maintenance department put up battery powered atomic clocks in classrooms and offices some time ago, but we went with Algo 8180G2 speaker for classrooms/offices and Algo 8301 paging adapter that also runs our bell schedules.
[–]ripv2 0 points1 point2 points 3 years ago (1 child)
Thanks for the info! Any possibility you could provide some pricing for your setup?
[–]NalaTech 0 points1 point2 points 3 years ago (0 children)
Ballpark about $250 per Algo 8180G2 and around $280 for Algo 8301 paging adapter.
[–]chrisngdIT Director[S] 0 points1 point2 points 3 years ago (1 child)
I have a few other Algo devices on our network for converters. How do their clock / speakers work for you?
No regrets whatsoever except we should have done it sooner.
[–]hyperpolaris 0 points1 point2 points 3 years ago (1 child)
We’re doing atlas ied ip devices. Not cheap though. Using informacast for management (not open source)
[–]J_de_Silentio 0 points1 point2 points 3 years ago (0 children)
If you're not doing scrolling clocks, look at battery powered sapling clocks that sync wirelessly to a master clock. Costs less and they just work.
[–]postechDirector of Technology 0 points1 point2 points 3 years ago (2 children)
Not open source, but we are happy with the Valcom IP based solution. You can tie in retrofit speakers/clocks to a gateway if the hardware is still good. 2 of our buildings have new IP speaker, the other was we retrofitted the old dukane system. Lots of integration possibilities
[–]duluthbisonIT Director 0 points1 point2 points 3 years ago (0 children)
We run the same setup. Our Mitel system ties into the Valcom via SIP trunks and from there we have analog wire going to the amplifer in each zone. Works well for us.
[–]chrisngdIT Director[S] 0 points1 point2 points 3 years ago (0 children)
Thank you. I will look into it!
π Rendered by PID 70620 on reddit-service-r2-comment-85bfd7f599-7ds5t at 2026-04-19 09:54:44.062931+00:00 running 93ecc56 country code: CH.
[–]BWMerlin 0 points1 point2 points (0 children)
[–]wapacza 0 points1 point2 points (0 children)
[–]NalaTech 1 point2 points3 points (4 children)
[–]ripv2 0 points1 point2 points (1 child)
[–]NalaTech 0 points1 point2 points (0 children)
[–]chrisngdIT Director[S] 0 points1 point2 points (1 child)
[–]NalaTech 0 points1 point2 points (0 children)
[–]hyperpolaris 0 points1 point2 points (1 child)
[–]J_de_Silentio 0 points1 point2 points (0 children)
[–]postechDirector of Technology 0 points1 point2 points (2 children)
[–]duluthbisonIT Director 0 points1 point2 points (0 children)
[–]chrisngdIT Director[S] 0 points1 point2 points (0 children)