I have a sony DSX-S100 radio and a arc audio 125.2 mini amp. Was looking for some good speaker recommendations. Thanks

 

The arc 125.2 is stable to 2 ohms so the Polk MM651's for sure. That way you'll be able to utilize the most power from the amp. That's 125w per channel at 2 ohms vs 70w at 4 ohms. They are great speakers for the money.

http://www.sonicelectronix.com/item_...FYJi7Aod1UYACA

 

to rbferg's recommendation