Would a ARC ph5 have enough gain for a Lyra Titan

You guys are right. Thinking back, would really depend on the rest of the system.

But I know this guy whose system comprises of Lyra Skala fed into an ARC ref 3/ph7/ref 110/ Wilson Watt-puppy. He does complain about the gain, pointing to the ref 3 as his suspect( he had no complaints about it when he was using the ref 2). The ref 3 has one hell of a power supply storage beefier than their smallest amp. It might just look uncomfortable seeing the numbers so high on the display screen.

The gain of the ARC PH5 is pretty healthy, It's the 12db gain of the ARC Reference preamp that might be a problem.