You can use the Snom PA1 with those valcom speakers. You just need to use a valcom power supply. If the speakers where existing, there is most likely a 24 power supply there now. If not you can order one form valcom. They measure their power in VPUs, each speaker has a VPU rating. Make sure you get one large enough to handle all the speakers. [https://img.newoldstamp.com/f/000/012/u555.png?5852f657df370]<http://trueipsolutions.com/> Brian Hales Chief Tech. Officer | True IP Solutions LLC p: (910) 249-4255 m: (910) 305-0676 w: http://trueipsolutions.com/ See what's new with us on LinkedIn: [cid:image002.jpg at 01D257A4.94DEAD00]<https://www.linkedin.com/company/true-ip-solutions-llc> From: VoiceOps <voiceops-bounces at voiceops.org> on behalf of Darin Steffl <darin.steffl at mnwifi.com> Date: Thursday, April 18, 2019 at 6:40 PM To: VoiceOps <voiceops at voiceops.org> Subject: [VoiceOps] Old PA System setup Hey guys, https://www.valcom.com/pdf/v1030c_v1036c.pdf We're trying to find the best way to interface 3 old Valcom speakers V-1030c to an IP paging system. I have a Snom PA1 but that won't work as we initially thought because speakers need 4 wires on a 24v power system. So 2 wires are for 24v power, and the other 2 are for audio. The snom only has a positive and negative output that feeds passive speakers, not active speakers like these. What is the best way to utilize these 3 speakers or should we just replace the speakers? We're trying to keep budget to a minimum for them so we would prefer to utilize the same speakers but what's the best way to power them and feed them audio using the existing 2-pair RJ11 cable they use? Thank you -- Darin Steffl Minnesota WiFi www.mnwifi.com<http://www.mnwifi.com/> 507-634-WiFi [http://www.snoitulosten.com/wp-content/uploads/2010/01/facebook-small.jpg]<http://www.facebook.com/minnesotawifi> Like us on Facebook<http://www.facebook.com/minnesotawifi>