Using a step up transformer with a turns ratio of 1:5 should give you a gain of roughly 13.98dB.
The reflected impedance will be dependent upon the input impedance of the phono stage you are using.
Many phono stages will commonly use an input impedance of 47K Ohms. If this is true in your case, your cartridge should see a resulting impedance of roughly 1880 Ohms.
Here is a link to a calculator that can help you with the variables... http://www.mh-audio.nl/Calculators/StepUpTransformer.html
Happy New Year!
The reflected impedance will be dependent upon the input impedance of the phono stage you are using.
Many phono stages will commonly use an input impedance of 47K Ohms. If this is true in your case, your cartridge should see a resulting impedance of roughly 1880 Ohms.
Here is a link to a calculator that can help you with the variables... http://www.mh-audio.nl/Calculators/StepUpTransformer.html
Happy New Year!