THE DEMO UNIT IS IN PERFECT OPERATING CONDITION. SALES ON DEMO UNITS ARE FINAL AND CANNOT BE RETURNED. PACKAGING & ACCESSORIES MAY NOT BE AVAILABLE. NO WARRANTY. Emperor is a super earphone developed in collaboration with qdc and Aiuto Japan. The birth of Emperor is full of Eastern traditional culture and humanistic natural elements. The year 2024 is the Year of the Dragon in the lunar calendar. It will naturally be associated with the Nine Five Supreme, True Dragon Emperor. The name of Emperor is closely associated with the supreme emperor. The most beautiful scenic spots inspire the panel of Emperor in China, Jiuzhaigou and Huanglong. It is a colourful terrace, a flowing spring, and even a jumping note! The Emperor's logo contains the concept of the sun and moon, which also symbolise yin and yang. The sun and moon accompany each other, and yin generates and yang grows. Emperor has adopted a unique gold-plated corner coating process for the first time, showcasing the royal style and top-notch product quality. The corner coating makes the product more honourable, stronger design sense, unique craftsmanship, and rock steady. The Emperor adopts a mixed driver design of dynamic, BA, and electrostatic, each driver's effectiveness is maximised. After nearly a year of tuning, it is the culmination of qdc headphone design. Golden and Brilliant Emperor Colours A natural and melodious sound Driver composition: A total of 15 drivers 1 dynamic+10 BA+4 electrostatic 1DD: Ultra Low 4BA: Low 2BA: Mid 4BA: High 4EST: Ultra High 5-way crossover; 5 sound channels Exclusive technology: 1. Using qdc multi-tube filtering and multi-channel divider (ZL 2017 2 1217165. X) Multi-channel frequency providers based on the patented qdc multi-tube filtering technology 2. Adopting patented technology for qdc adjacent frequency band crosstalk suppression and phase compensation to achieve precise tuning. 3. Dynamic design adopts Dmagic's patented acoustic structure. 4. Customised high sensitivity ultra-low frequency driver, 10mm composite material diaphragm. 5. Ultra-wide frequency response range: 5Hz-700000Hz. Technical specifications Input sensitivity: 106dB SPL/mW Frequency response range: 5 Hz -70000 Hz Impedance: 15 ohms Drivers: 15 micro drivers Noise reduction: 26dB Earphone plug: 3-in-1 interchangeable plug Earphone cable: black