ATI Pro Technologies introduces the BL4500 Ver 4.0 Amplifier 4-channel professional power amplifier engineered for large venues, touring sound systems, and fixed PA installations. Designed with advanced Class-H amplification, this amplifier delivers massive power, exceptional audio clarity and rock-solid reliability for demanding professional environments.
Extreme Power Output for Large-Scale Sound Systems
The BL5500 Ver 4.0 is built to handle high-load applications with ease. It delivers 4×1200 at 8Ω, 4×1400W at 4Ω, and an incredible 4×5500W at 2Ω in stereo mode, making it ideal for driving high-power full-range speakers and subwoofers. In bridge mode, the amplifier provides 2×2400W at 8Ω and 2×2800W at 4Ω, offering flexibility for large PA stacks and bass-heavy setups in concerts and outdoor events.
High-Fidelity Audio with Maximum Speaker Control
With a wide frequency response of 10 Hz to 20 kHz, the BL5500 Ver 4.0 reproduces deep low frequencies and detailed highs with precision. A signal-to-noise ratio greater than 100 dB ensures clean, distortion-free sound even at high volumes. The exceptionally high damping factor (>3000 at 8 ohms) allows superior control over speaker cones, resulting in tight bass, improved punch, and accurate sound reproduction.
Advanced Protection for Continuous Operation
ATI Pro Technologies has equipped the BL5500 Ver 4.0 with comprehensive protection circuitry to ensure long-term reliability. Built-in safeguards include short-circuit, DC overload, overheat, ultrasonic, RF interference and voltage peak limit protection, allowing the amplifier to perform safely during extended use and under extreme load conditions.
Flexible Integration & Professional Design
The amplifier offers selectable input sensitivity options (0.775V, 1V, 1.4V) for seamless integration with mixers and signal processors. It operates on 110V or 220V power, making it suitable for global installations. Housed in a 2U rack-mount chassis (483×436×90 mm), it fits easily into touring racks and fixed equipment rooms.
Ideal Applications
The BL5500 Ver 4.0 is perfect for concerts, stadiums, auditoriums, clubs, DJ systems and large installed PA setups. With its extreme power handling, advanced protection, and trusted build quality, ATI Pro Technologies delivers a heavy-duty amplifier built to dominate large-venue sound systems.