I've always thought that as well. It seems as though It would be the weak link in the power chain and would be the limit of the amount of power of that the amp can take.

But a lot of people have tested this and it seems as though it does help in very high amperage pulling amplifiers.

Old Ti amps were my favorite. Ti500.4, Ti600.2, Ti400.2 and Ti800.1 were all great amps.

Never heard the other models in the Ti line, but I suspect they were the same.