Powerful Low-Frequency Performance for Demanding Audio Systems
The ASCSONIC AUDIO DS43K2 is a high-output, two-channel professional power amplifier engineered for demanding sound reinforcement and low-frequency applications.
Built around SiC MOSFET power devices and Class D amplification technology, the DS43K2 is designed to deliver substantial power for compatible professional subwoofers. Its high-current output capability makes it suitable for sound systems that require strong bass reproduction and reliable amplifier performance.
A front-panel LED display adds practical monitoring functionality, showing the amplifier's internal temperature and current operating mode. This allows technicians to check key operating information quickly during setup, sound checks and live performances.
Highlights of the DS43K2
SiC MOSFET Power Stage: Silicon carbide switching technology for high-power amplifier applications.
Up to 17,200W Combined Output: Designed for demanding professional audio and subwoofer systems.
Dual-Channel Architecture: Supports flexible amplifier allocation in high-power speaker configurations.
LED Operating Status Display: Displays internal temperature and current operating mode for convenient system monitoring.
Rack-Friendly Construction: A compact 1U chassis helps simplify equipment rack planning.
PFC Power Management: Supports power conversion across the specified input-voltage range.
Integrated Safety Protection: Designed to protect the amplifier and connected equipment against abnormal operating conditions.
Specifications:
ITEM | DS43K2 |
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 |
Built for Professional Subwoofer Applications
From touring bass systems to high-output concert PA setups, the DS43K2 is designed for professional audio applications where substantial amplifier power and convenient operating-status monitoring are important.
It can be integrated into compatible passive subwoofer systems, rental sound inventories and large-scale sound reinforcement projects, subject to the speakers' impedance, power handling and system requirements.
ASCSONIC AUDIO works with professional audio distributors, rental companies and system integrators to provide amplification solutions for commercial sound applications. Contact us for technical documentation, product details and OEM/ODM cooperation.
