The amplified cable modem includes a master circuit, a data network circuit, a telephony circuit, and a housing. The master circuit, a data network circuit, a telephony circuit are electrically interconnected. The housing contains the master circuit, the data network circuit, and the telephony circuit. The master circuit: a) receives the input signal; b) splits the input signal into the data network signal and the telephony signal; c) recombines signals from the data network circuit and the telephony circuit into the output signal; and, d) transmits the output signal to the external data source. The amplified cable modem includes a collection of amplifiers configured to maximize transmission power while generating minimal electrical noise in the amplified signals.