This doesn't make sense. The Exact has an output of 6.8-7.2mV which is one of the highest I've heard of. As others have suggested, double check the wiring. Follow Rega's guide:
http://www.rega.co.uk/downloads/Exact.pdf
Have you done any troubleshooting? Have you tried plugging your phono stage into another input on your Ayre? Have you tried different interconnects? I know these steps may sound ridiculous, but it's a process of elimination. If you're absolutely certain the wiring is correct and your equipment is fine, there's something wrong with the cartridge. If that's the case, contact the vendor and ask for help. Good luck!
http://www.rega.co.uk/downloads/Exact.pdf
Have you done any troubleshooting? Have you tried plugging your phono stage into another input on your Ayre? Have you tried different interconnects? I know these steps may sound ridiculous, but it's a process of elimination. If you're absolutely certain the wiring is correct and your equipment is fine, there's something wrong with the cartridge. If that's the case, contact the vendor and ask for help. Good luck!