Martin Roland MA-3800HD Professional Digital 1800W Echo Mixing Amplifier. MA-3800HD 1800W Max Power with a built-in SD/USB readers to playback MP3 songs Function with Subwoofer output. The MA-3800HD is the hottest and the newest digital mixing amplifier! The newest digital mixing amplifier comes with a built-in Digital Optical/Coaxial, HDMI, MP3 Playback/Voice Recording / Bluetooth & […]

Martin Roland MA-3800HD Professional Digital 1800W Echo Mixing Amplifier. MA-3800HD 1800W Max Power with a built-in SD/USB readers to playback MP3 songs Function with Subwoofer output. The MA-3800HD is the hottest and the newest digital mixing amplifier! The newest digital mixing amplifier comes with a built-in Digital Optical/Coaxial, HDMI, MP3 Playback/Voice Recording / Bluetooth & […]