The A80 Bluetooth speakers are built with 18mm high-quality MDF materials. The Proprietary Aluminum Alloy Cone (PAAC) of mid-woofer was created based on a Klippel Laser Doppler Interferometer. Less power compression will be achieved thanks to the 30mm diameter voice coil. The active Bluetooth speakers offer a great combination of stylish appearance and a powerful XMOS system. The Hi-Res certification is the successor of the excellent 3D audio result with many details. The 4.5-inch Mid-woofer and the 30mm diameter voice coil all together deliver more dynamic and realistic music to listeners. Vibration can be decreased by the 8-degree elevation isolation pads, hence ensuring a better sound performance.