I tend to think that there's not enough gain in the system for the Titan. First, Lyra rates their cartridges at 5 cm/s versus the typical 3.54 cm/s. That would knock down the input to 0.35mv and with the 12 db from the ref 3, you would be outputing about 1V at full throttle. If that's enough, really depends on your amp, speakers and what type of music you listen to.
I personally don't like being in a position where my source does not have enough output to drive the amp to full output or beyond. I think dynamics get compromised otherwise. The typical input sensitivity in todays amp's is about 2V for full output. Some less, some more. In my setup with 66db of gain, I can drive a Atma-sphere MA-1 to a whopping 3 watts.
Amplifier power also plays a role. Big difference driving a 60 watter to half output versus a 450 watt beast.
The bottom line is that there is no definitive answer.
I personally don't like being in a position where my source does not have enough output to drive the amp to full output or beyond. I think dynamics get compromised otherwise. The typical input sensitivity in todays amp's is about 2V for full output. Some less, some more. In my setup with 66db of gain, I can drive a Atma-sphere MA-1 to a whopping 3 watts.
Amplifier power also plays a role. Big difference driving a 60 watter to half output versus a 450 watt beast.
The bottom line is that there is no definitive answer.