About This Versatile 3-in-1 Functionality: Combines a tube amplifier, preamplifier, and headphone amplifier, offering speaker outputs, a 3.5mm headphone jack, and a 3.5mm AUX output to connect additional amplifiers or active speakers/subwoofers for a multi-channel system. High-Power Output: Utilizes the Infineon 12070 classic IC, delivering 80W per channel at 4Ω, effectively driving all 3-8Ω passive speakers for robust and dynamic sound. Dual Audio Inputs with Enhanced Compatibility: Features wireless Bluetooth 5.1 and wired stereo RCA inputs. The QCC5125 Bluetooth chip supports APTX-LL, APTX-HD, and LDAC for fast and lossless transmission, ensuring compatibility with most audio devices, including MP3 players, phones, computers, tablets, TVs, and CD players. Premium Build Quality: Designed with a durable aluminum alloy chassis and high-quality components to ensure longevity and superior audio performance, making it a reliable addition to any home audio setup. User-Friendly Design: Equipped with intuitive controls for volume, treble, and bass adjustments, allowing users to customize their listening experience easily. The compact size and sleek design make it suitable for various environments, from home theaters to desktop audio systems. Overview Voltage : 24 Volts (DC) Manufacturer : Douk Audio Maximum Supply Voltage : 24 Volts (DC) Mounting Type : Freestanding Brand : Douk Audio