How to increase the gain on a preamp


I just received a preamp I bought a week ago, and it sounds fabulous, but the gain is very low specially when playing vinyl, I use an MC cartridge, and the volume knob is all the way up, what can I do remedy this situation?
128x128marcel1728
The question cannot be answered without knowing what the preamp model and cartridge are.
Is it possible that you are running a low output MC into a MM or low gain phono stage? If so, you may need to use a Step Up Transformer (SUT) for your phono.