Before you toss the cart, have you measured how much the high freq are rolled off?
what about adjusting the cart loading on the phono stage.....
you may want to consider the following.
1. get a disc with test tones on it,.
2. play the disc back on your current set up.
3. connect a volt meter to your phono pre amp output stage.
4. record the AC voltage produced at each test frequency.
Once you have that, then you can determine how rolled off it is or isn't.
BR
what about adjusting the cart loading on the phono stage.....
you may want to consider the following.
1. get a disc with test tones on it,.
2. play the disc back on your current set up.
3. connect a volt meter to your phono pre amp output stage.
4. record the AC voltage produced at each test frequency.
Once you have that, then you can determine how rolled off it is or isn't.
BR