My Jadis JP80MC had those specs for phono, and I think 20db gain in the line stage, and had no problems with a cartridge with a lower (.3mV) output than yours. Should be fine based on those numbers.
Sounds like plenty to me, esp. with high efficency Lowthers. I've got about 78 db total gain from my pre and it can handle a Benz Glider L2 (o.25 mv) just fine, driving 89 dB/watt/meter Vandy 3Asigs.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.