Yes, I posted recently on the Seduction overload margin (and the difficulty of describing that margin, depending as is does on frequency and cartridge trackability and groove spacing limitations!)
Since both preamps have similar output stages, the maximum output is the same, so if the second stage is the limiting factor then Eros has 10dB less margin - at 1.0kHz, something like 70mV input could overload the output stage (20 volts output - 10 times greater than a standard CD player). Cartridge output below 1kHz is limited by the record groove spacing as well as the cartridge's ability to track high levels. Above 1kHz, higher cartridge output is theoretically possible and might overload the Seduction input stage, but the Eros input stage is much more difficult to overload sue to the way the circuit is implemented. In practice however, there are virtually no cartridges that can generate more voltage above 1kHz than below that frequency.
Some other numbers: 70mV is 20dB above the nominal 7mV you mentioned. Few if any recordings, and few if any cartridges, can produce a signal more than 14dB above the nominal 5cm/sec groove velocity.
