The Bronze has an output of .4mV with 5 ohms internal impedance. It will work well with a SUT of between 1:8 and 1:25. The higher the range, the more the highs will be attenuated. It will be a personal preference as to how bright you want the cartridge to sound. The lower the ratio, the brighter it will sound. Personally, I would recommend something around 1:20.