Would adding a separate 3 channel help in this situation

I have an Anthem 1120 receiver running a 5.1.4 system. My front speakers are Paradigm 85F with a Paradigm 55 C as center channel. When I play a movie with a lot of heavy sound effects the sound gets really loud during the sound effects and my family objects when it get very loud. If I added a 3 channel amp can I play at a lower volume and be able to hear and understand the dialogue. I start at a fairly loud but not blasting level to hear the dialogue clearly. I want to still be able to enjoy the sound effects but at a lower volume setting. Thanks