LD Systems DP4950 – 4 Channel Amplifier 810 W 4 Ω

LD Systems DP4950 – 4-Channel Class-H Power Amplifier

Tour-Grade Power, Installation-Ready Flexibility

The LD Systems DP4950, part of the acclaimed Deep² amplifier series, is a high-performance 4-channel Class-H power amplifier designed for professional audio applications. Whether in live sound reinforcement, fixed installations, or demanding subwoofer-driven setups, the DP4950 delivers reliable, efficient power with rock-solid performance and extensive protection features. Its compact 2U rack format, robust steel housing, and clean signal output make it a go-to amplifier for audio professionals who expect durability and clarity.

With four channels of clean amplification, the DP4950 is ideal for powering multiple full-range speakers, floor monitors, or high-output subwoofers. Each channel delivers 810 watts into 4 ohms and 490 watts into 8 ohms, while paired channels can be bridged to provide 1,600 watts at 8 ohms—making this unit a flexible workhorse for multi-zone setups, bi-amped systems, and scalable power configurations.

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⚙️ High Power Meets High Efficiency

The DP4950 utilizes Class-H amplifier topology, which operates efficiently by modulating internal voltage rails depending on signal demand. This improves thermal performance and reduces energy consumption while preserving high output power. The result is a powerful yet cool-running amplifier that offers reliable performance even under continuous heavy loads.

Its wide frequency response from 20 Hz to 20 kHz ensures accurate reproduction of both full-range audio and low-end content when used with subwoofers. With a signal-to-noise ratio of 105 dB and distortion under 0.1% THD, the DP4950 delivers clean, punchy sound that holds up under scrutiny in critical listening environments.

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🔧 Built for the Real World

The LD Systems DP4950 is built with toroidal transformers for robust current delivery, ensuring stable operation even with fluctuating power demands. Its high-strength steel enclosure is designed to withstand road abuse, vibration, and constant transport—yet it’s equally suited to fixed installations in clubs, theaters, houses of worship, and sports facilities.

Weighing approximately 21 kg (46 lbs), it strikes the perfect balance between solid construction and manageable portability. The 2U rackmount chassis allows for easy integration into standard equipment racks and mobile flight cases.

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🔒 Comprehensive Protection System

To safeguard your system and investment, the DP4950 includes a full suite of professional protection features, including:

• Overheating protection

• Short circuit protection

• DC fault protection

• Clip limiting with automatic limiting circuitry

• Soft-start to prevent inrush current

The amplifier uses a temperature-sensitive, dual-speed fan to maintain ideal operating temperature without unnecessary noise. Status LEDs on the front panel display signal presence, clip warning, protection activation, and power status for quick at-a-glance diagnostics.

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🎚️ Pro-Grade I/O and Control

Each of the four input channels is equipped with a balanced XLR input and a link output for daisy-chaining multiple amplifiers or routing signals to active speakers. Output connections are made via Speakon-compatible connectors and binding posts, ensuring compatibility with a wide range of professional speaker cabling.

Independent gain controls are provided for each channel on the front panel, along with recessed bridge/stereo switches and ground lift switches, allowing installers or touring engineers to adapt the amplifier to different venues, setups, and troubleshooting needs.

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🏢 Ideal Use Cases

• Touring and rental sound systems

• Passive subwoofer and full-range speaker setups

• Multi-zone fixed installations

• Theater and stage monitoring

• Churches, conference halls, and event venues

• DJ setups and live music stages

Whether you’re a system integrator, a live sound engineer, or a venue technician, the DP4950 offers the flexibility, muscle, and reliability you need to deliver high-quality sound consistently.

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✅ Why Choose the LD Systems DP4950?

• Four high-powered channels in a single 2U amplifier

• Class-H topology for efficient thermal performance

• High-output ratings for demanding subwoofer and full-range applications

• Durable steel chassis for long-term reliability

• Professional I/O and control flexibility

• Full protection against electrical and thermal faults

• Bridgeable outputs for subwoofer applications

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🏁 Conclusion

The LD Systems DP4950 is a professional-grade, multi-channel amplifier designed to deliver exceptional power, efficiency, and durability. Built for the rigors of the road and the demands of fixed installations, it stands out for its powerful output, smart protection, and clear, controlled sound.

Whether you’re designing a performance venue, building a mobile rack for gigs, or installing an audio system in a large-scale commercial space, the DP4950 offers a future-ready solution that doesn’t compromise. Its balanced mix of power, performance, and protection makes it one of the most versatile and trusted amplifiers in its class.

 

 

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