I wonder if there will be a sonic difference between
1. changing the MM input stage to 100k (by adding the 150k in parallel) so that the cartridge sees 250 ohms
2. Keep the MM stage at 300k and add a resistor to the primary of the Step up so that the overall impedance seen by the cartridge is 250 ohms
1. changing the MM input stage to 100k (by adding the 150k in parallel) so that the cartridge sees 250 ohms
2. Keep the MM stage at 300k and add a resistor to the primary of the Step up so that the overall impedance seen by the cartridge is 250 ohms