The Soundking AQ4450 is a professional, high-efficiency 4-channel 1U rackmount digital power amplifier engineered for high-power sound applications such as live touring performances, conferencing systems, and large installations. Manufactured by Soundking, it balances compact hardware design with powerful multi-impedance driving capabilities, including stable performance down to 2-ohm loads.

The Soundking AQ4250 is a professional 4-channel digital power amplifier designed for demanding audio setups, including conference rooms, live stages, and commercial sound systems. Part of the Soundking AQ Series, this class-D amplifier stands out for its high efficiency, compact design, and comprehensive internal protection mechanisms.

The AQ2250 relies on a highly efficient class-style digital architecture that achieves over 95% efficiency, substantially dropping operating costs and heat dissipation compared to traditional analog amplifiers. A cornerstone of its design is an Active Power Factor Correction (PFC) circuit maintaining a 0.99 power factor, ensuring the unit pulls clean, stable current even when running on volatile or harsh power grids

The Soundking AQ2150 is a professional, high-performance 2-channel digital power amplifier designed for commercial sound installations, live sound reinforcement, and touring audio systems. Built on a highly efficient Class-D amplification architecture, it delivers exceptional audio clarity and raw power while maintaining a lightweight, compact footprint.The primary design focus of the AQ Series is combining energy efficiency with stable, long-term reliability under grueling thermal and electrical conditions.