Replying to C4R 4UD10 Q ++K yo

Got a quick car audio question for anyone who knows quite a bit about it. I know a bit to keep up but im no expert. I just sort of fell into this 10" clarion 1600 watt peak 800 watt RMS sub in a ported box and I'm looking for an amp for it. Guy said its running on 2 ohms. I heard its better to over power a sub than under power it, because underpowering causes distortion and blows speakers. But I also heard overpower can melt the coils or something. Sooo we tested a 600RMS on the sub quickly and my buddy who knows more than me said it was "clipping" - meaning it was pushing the sub to its max or some shizzz. So maybe a smaller amp will do. Or should I get a 800 rms or 1000rms amp and run it at like 75%

Specs on sub:

• 3” Black Anodized Aluminum Voice Coil

• 4-Layer CCAW Voice Coil

• Black Anodized Cast Aluminum Basket

• Bumped and Vented Bottom Plate

• Butyl Rubber Surround

• Spider Exhaust Technology

• Rubber Mounting Gasket

• Gold Spring-Loaded Terminals

• Dual Strontium Ferrite Magnets – 171 Oz.

• Tooled Magnet Boot

• 800 Watts RMS, 1600 Watts MAX"

*Spark Notes: What size amp do I need to properly power a 800RMS sub?*