How to increase the gain on a preamp

Details will help here. How much gain does the phono stage have? What is the output of your MC (not clear if it is HOMC or LOMC from your post)? Do you have this gain problem with any non-phono input?

You could also buy an external phono stage that can provide the gain you need if you don't want to cahnge carts or get into SUTs.

Dear Marcell728: You have to contact the manufacturer or use a higher output cartridge.

Regards and enjnoy the music,
R.

Sitation normal. Your preamp has gain only for a movingmagnet cartridge, or a high gain moving coil.
You cart is most likely a lower gain type.
You need a step up transformer for your cart, or buya high gain cart.

How do you guys know so much?
Marcel has not told us bupkes about his system.

If it is a matter of not enough gain, then there is another alternative to a SUT or higher output cart. Pre-pre-amp also known as headamp, which would go between cart and phono stage.