Hi, I have one 15” 3-Way 1500 Watt 8-Ohm speaker from Rockville then 2 other old 15” Gemini speakers that were passed down. What watt range amp would I need to power all 3. Most likely bridging the 2 Gemini speakers. I know these aren’t the best speakers but they are what I have right now and I think they should fit the need I have for them using them at tailgates and outdoor events. Thanks