CEDIA Expo 2021: Aragon Debuts Titanium Dual-Monoblock Amplifier and Tungsten Preamplifier September 2, 2021 | Home / September 2, 2021 rave-video / CEDIA Expo 2021: Aragon Debuts Titanium Dual-Monoblock Amplifier and Tungsten Preamplifier CEDIA Expo 2021: Aragon Debuts Titanium Dual-Monoblock Amplifier and Tungsten Preamplifier