You can use the antenna system to install both a distribution amp and an antenna preamplifier. There are, however, two significant concerns: 1. You must ensure that both of them have access to electricity. Installing the distribution amplifier between the preamplifier and the power supply of the preamplifier can trigger a voltage block. (2) 2. Be aware that there is a thing called signal overdrive. You don't have to amplify the received signal if it's already strong after using the splitter. I have given my insights about what Antenna Preamplifier vs. Distribution Amplifier is. If you want to try using both the preamplifier and the distribution amp, you can do many other setups.