Q100 Hi-Fi Bluetooth Amplifier Wireless Audio Receiver with 24V 3A DC Adapter Features a. Low frequency can be as low as 30Hz, 2.1 channel with powerful subwoofer output and shocking bass, sounds smooth and full. HiFi sound with rich details and excellent quality brings auditory feast. b.Dual DSP sound effects, adopting STA326 power amp chip with DSP and ATS2825C Bluetooth chip with 16 kinds of sound effects with DSP, much better sound quality and shocking auditory effects make you feel like in the cinema. c. Max output power can reach 80W+40W*2, and default equipped with 24V/3A power supply which can output max 72W, easily to drive most home bookshelf speakers. d. With wired AUX and wireless Bluetooth 4.2 input, can be compatible with various audio devices like phone, tablet PC, TV, iPod, computer, CD player etc. to meet different home audio devices. e. Attractive appearance and compact size, exquisite metal case looks more fashionable, intuitive LED display shows main volume numerically, the lowest price in the market still can bring extreme HiFi listening experience. Parameters: Max output power: 80W+40W*2 Bluetooth version: Bluetooth 5.0 + DSP Bluetooth distance: about 10-15M Audio input: Bluetooth / AUX Audio output: Banana speaker / subwoofer Amplifier chip: STA326(with DSP) Decoding chip: PCM1802 Bluetooth chip: ATS2825C(with DSP) Best matched L/R Speakers: 4-6.5 in (4-8/20-120W) Best matched passive subwoofer: 6.5-12 in (4-8/40-120W) Power input: DC 24V-32V/above 3A Dimensions:(L)110*(W)68*(H)23mm / 4.33*2.68*0.91in Net Weight: 0.2KG / 0.44lb Package Weight: 0.55KG / 2.1lb Notice: 1. Because of its large power output and compact design, it is normal that the chassis temperature will rise and feeling a little hot during use. 2. Default send 24V/3A(72W) power supply enough for 1 pair 5 inch speaker and 1*6.5" subwoofer. But floor speakers over 1M need larger power supply. Its auto power-off during use means that speakers need higher power, please turn down the volume or change larger power supply. Package Includes: 1*Q100 Power Amplifier 1*24V/3A Power Supply 1*RCA Cable 1*AUX Cable 1*Manual