link 1.0 Djem Guerreru Inc. https://www.djemguerreru.com 21600 JOITO's https://www.joitos.com https://cdn.joitos.com/GENERAL/98/984/9848/9848068.V0.jpg 400 250 https://www.joitos.com/item/25385648/Self%2DAmplified%2DPaging%2DSystem%2DExpander - Viking expander/adapter- Converts any paging audio source (600 ohm, 4 ohm, 8 ohm, 16 ohm, 25 volt, or 70 volt)- to Vikings proprietary SA Series 2 wire protocol - Power up to twelve (12) SA-1S and/or SA-1H self amplified paging speakers 92.28 USD 1 Electronics & computer--Phone & telecom--Other