low latency audio interface for logic

To dovetail off of yoyoBen, UAD has been a great interface for me.

Near-Zero Latency Monitoring:

• UAD Apollo interfaces allow you to monitor audio signals through UAD plugins with minimal latency using the Console application, bypassing the DAW's buffer size. 

~ThatLogicProGuy

As long as you don’t use tons of cpu-excessive and latency-intensive plugins, you can use any sound card. I love RME, also use UAD and sometimes Focusrite.