Denver Home Entertainment and Automation Systems. ListenUp was founded in 1972 when we opened our first store at the corner of Pearl and Exposition - and we\\\\\\\'re still there! Over the years the space has expanded quite a bit. Today, we offer multiple audio, video and home theater rooms where we can give you informative demonstrations of all the latest and greatest equipment. If you\\\\\\\'re passionate about music, you\\\\\\\'ll especially want to check out our high-end audio areas, Room A and Room I. In these acoustically optimized spaces, you\\\\\\\'ll experience the crÃ¨me de la crÃ¨me in sound reproduction from the finest brands in the world, including Avantgarde Acoustics, Focal, MOON, Sonus faber and more.