The SD2504 is a high-performance 4-channel Class D amplifier designed for karaoke systems, home theaters, professional AV setups, and commercial installations. Delivering 4×250 W @ 8Ω or 4×450 W @ 4Ω, it provides powerful, clear, and reliable sound in a slim 1U rackmount design. Advanced Class D technology ensures high efficiency, low heat, and ultra-low distortion, making it ideal for entertainment venues, mobile AV, and fixed installations where space and reliability matter.
Key Features & Benefits
High-Efficiency Class D Design – Over 90% efficiency, minimal heat, ultra-low distortion, and crystal-clear audio, perfect for karaoke, live playback, and home theater.
4-Channel Output with Flexible Power – 4×250 W @ 8Ω, 4×450 W @ 4Ω; independent channels allow custom system balancing for multiple speakers or zones.
Compact 1U Rackmount – Slim chassis saves rack space and fits portable setups, studios, or karaoke clubs.
Full Protection Circuits – Safeguards against short circuits, DC offset, over-temperature, and voltage fluctuations for stable, long-term operation.
Dual-Voltage Compatibility – Supports AC 110 V and 220 V, suitable for international installations.
Professional Connectivity – Balanced XLR inputs and Speakon outputs ensure clean signal transmission with minimal interference.
Applications
Karaoke & Entertainment Venues – Smooth vocals, rich lows and clear highs for multi-mic environments.
Home Theater & Hi-Fi Systems – Immersive surround sound with low noise and high clarity for cinematic experiences.
Commercial & Conference Rooms – Supports multi-zone distributed speaker systems in offices, malls, or restaurants.
Rental & Mobile AV Systems – Lightweight, efficient, and portable for rental companies and touring performers.
Upgrade your audio setup with the SD2504 – a compact, reliable, and powerful 4-channel amplifier that delivers high-fidelity sound for karaoke, home theaters, commercial installations, and mobile audio systems.
Specification
ITEM/MODEL | SD2504 |
8Ω Stereo Power Output Power | 4×250W |
4Ω Stereo Power Output Power | 4×450W |
8Ω Bridged Monon Power | 2x800W |
Frequency Response | 20Hz-20KHz ±1dB |
THD+N 1KHz 1W 8Ω | <0.1% |
Signal to Noise Ratio 1KHz | >109dB |
Channel Separation 1KHz | >70dB |
Class | D |
Protection | in-Short, DCP, OVP, UVP, OCP,OTP |
Operating Voltage | 110V Version: 90V-135V / 220V Version: 180V-265V |
Input Sensitivity | 0.77V |
Input Impedance | 20KΩ |
Dimensions(W×H×D) mm | 483×44×325mm |
Packing Dimension(mm) | 550×100×450mm |
Net Weight(kg) | 4.2 |
Gross Weight(kg) | 5.2 |
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