Ampfly Sound Amplifier is an innovative passive acoustic amplification system integrated into a protective smartphone case, designed to enhance mobile device sound output without requiring additional power sources or electronic components. This groundbreaking design, conceived and developed in the United Kingdom, employs sophisticated acoustic engineering principles to achieve up to three times volume amplification through a carefully calculated internal horn geometry. The system utilizes perceptual acoustic theory and advanced algorithmic computations to optimize sound amplification within minimal space constraints, particularly focusing on bass tone enhancement through higher order harmonic resonance. Constructed from high-grade ABS plastic, the three-part assembly features a specialized internal horn structure concealed within a slim profile, measuring 65 x 18 x 133 millimeters for the iPhone 5 model. The design represents a significant advancement in passive acoustic amplification technology, addressing the common limitation of smartphone speaker performance while maintaining practical portability. This Silver A' Design Award-winning innovation in the Idea and Conceptual Design category demonstrates exceptional achievement in sustainable design solutions, combining functional excellence with aesthetic appeal. The amplifier's unique approach to sound enhancement, developed through extensive research and computer simulations, eliminates the need for traditional large acoustic horns while delivering superior audio performance, particularly beneficial in social settings and environments with background noise. The design's implementation of human audio perception principles and verified acoustic performance through spectral analysis showcases its technical sophistication and practical utility in everyday mobile device use.
acoustic amplification, passive sound enhancement, smartphone accessories, sustainable design, audio innovation, mobile technology
CITATION : "Adam Dawson. 'Ampfly Sound Amplifier.' Design+Encyclopedia. https://design-encyclopedia.com/?E=446738 (Accessed on August 21, 2025)"
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