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D43K2
Ascsonic Audio
90-260V
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The D43K2 is a professional 2 channel Class D power amplifier designed for high-output sound reinforcement systems. Delivering up to 4300W per channel at 8Ω, 7900W at 4Ω, and 8600W at 2Ω, it provides exceptional power density and stable performance under low-impedance loads. Its high-efficiency Class D topology ensures reduced heat generation, low distortion, and consistent audio quality even during long operating hours. Built for demanding live sound and installation environments, the D43K2 is an ideal solution for subwoofer systems, large PA setups, and touring sound applications requiring reliable, high-power amplification.
1. Massive 2 Channel Power Output
The D43K2 delivers outstanding output capability with 2×4300W (8Ω), 2×7900W (4Ω) and 2×8600W (2Ω) per channel. This high power headroom allows the amplifier to drive large subwoofer cabinets and high-SPL PA systems with authority, ensuring deep bass impact and dynamic sound reproduction without strain.
2. Stable Operation at 2-Ohm Loads
Designed for continuous low-impedance operation, the D43K2 remains stable at 2Ω loads for long periods. This makes it ideal for systems using multiple parallel-wired loudspeakers, where reliability and sustained output are critical in professional live sound environments.
3. High-Efficiency Class D Design
The advanced Class D amplification architecture maximizes efficiency while minimizing heat dissipation. This not only improves long-term reliability but also reduces power consumption, making the D43K2 suitable for mobile touring systems and permanent installations with high energy demands.
4. Universal Power Supply with PFC
Equipped with a wide-range power supply and active PFC, the amplifier operates reliably from 90V to 265V AC. This ensures consistent performance despite unstable mains conditions, making it well suited for international touring and global installation projects.
5. Comprehensive Protection & Monitoring
The D43K2 integrates multiple protection circuits including over-temperature, over-current, short-circuit, DC protection and soft-start control. Front-panel indicators provide clear status feedback, helping technicians monitor system performance and protect connected loudspeakers.
Professional Subwoofer Systems
Large-Scale PA Sound Reinforcement
Rental & Touring Audio Systems
Fixed Installation Projects
ITEM | DA43K2 |
8Ω Stereo Power(RMS) | 4300W×2 |
4Ω Stereo Power(RMS) | 7900W×2 |
2Ω Stereo Power(RMS) | 8600W×2 |
8Ω Bridged Power(RMS) | 15700W |
4Ω Bridged Power(RMS) | 17100W |
Frequency response | 20 Hz-20 kHz(1W@8Ω,±0.5 dB) |
Total Harmonic Distortion (THD) | <0.5% from 1W to full power (Typical value<0.05%) |
Signal-to-Noise Ratio 8Ω, 1kHz,1v Sensitivity | >110 dBA(20 Hz-20 kHz,A weighted) |
Gain.Sensitivity | 32dB,35dB,38dB,41dB |
Cross-talk( 20Hz- 1kHz, below Rated Power ) | >66 dB @1 kHz |
Slew Rate | 50 V/μs @8Ω |
Maximum Output Voltage/Current | 185V/85A(370V in the BRIDGE MODE) |
Standby | 47W and 0.8A |
Environment temperature | 0⁰-45C/32°-113F |
Cooling system | Tunnel through cooling system |
Input Connectors(per channel) | 3-pin XLR, electronically balanced |
Output Connectors (per channel) | Neutrik speakON |
Tour Class Protection | Under voltage, DC, Over temperature, Over load limiter, short protection |
Operating Voltage | 90V-260V |
Input Impedance | 10 kΩ balanced |
Damp Factor | >=5000 |
Dimensions(WXHXD) mm | 490x50x482mm |
Packing dimension (mm) | 610x560x103mm |
Net weight(kg) | 12kg |
Gross weight(kg) | 16kg |
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