Viking Electronics Self Amplified Paging System Expander VK-SA-X12

• Viking expander/adapter
• Converts any paging audio source (600 ohm, 4 ohm, 8 ohm, 16 ohm, 25 volt, or 70 volt)
• to Viking's proprietary SA Series 2 wire protocol
• Power up to twelve (12) SA-1S and/or SA-1H self amplified paging speakers