The dBTechnologies IA504D is a high-performance, class-D half-rack amplifier designed to deliver precision and flexibility in both constant voltage systems (70V/100V) and low impedance professional audio applications. With four channels providing up to 125 W each at 4 ohms, the IA504D is perfect for stereo, bridged, or distributed speaker configurations in installation and commercial sound environments.
This model features advanced onboard DSP with configurable presets including flat, user-defined, and dBTechnologies speaker presets. It offers 24-bit AD/DA conversion at 48kHz, providing high-fidelity signal processing with integrated limiters for system protection. A full-range power supply with Power Factor Correction ensures stable operation across a wide voltage range, making it suitable for global use.
What sets the IA504D apart is its networking capability. It includes Dante Primary and Secondary ports, enabling seamless integration into digital audio networks with both audio input and remote control functionality. In addition, it supports setup and monitoring through AuroraNet software via RJ45 and USB ports.
EuroBlock balanced inputs and outputs allow for straightforward integration, and its compact half-rack format is ideal for installations with limited space. Despite its small footprint, the IA504D delivers a total rated power of 280 W RMS at 230Vac and remains lightweight at just 1.82 kg.
Whether deployed in conference halls, retail environments, hotels, or houses of worship, the IA504D combines professional audio quality with digital control and a compact design for modern installation needs.
Features:
Half-rack class-D amplifier
4 x 125 W at 4 ohms
Compatible with 70V / 100V systems
Onboard DSP with multiple presets
24-bit / 48kHz AD/DA conversion
Compressor and peak output limiters
Full-range PSU with power factor correction
Dante networking with dual RJ45 ports
USB and Ethernet control via AuroraNet
EuroBlock balanced inputs and outputs
Specifications:
| Category | Specification |
|---|---|
| Type | Class-D Half-rack Amplifier |
| Input Impedance | 20 kOhm balanced |
| Frequency Response | 20 Hz – 20,000 Hz |
| Total Rated Power | 280 W RMS @ 230Vac / 250 W RMS @ 120Vac |
| Single Channel Output | 4Ω: 425W Peak / 280W RMS 8Ω: 245W Peak / 245W RMS 16Ω: 135W Peak / 135W RMS 8Ω (Bridge): 619W Peak / 280W RMS 70V: 250W RMS 100V: 240W RMS |
| All Channels Driven | 4Ω: 225W Peak / 70W RMS 8Ω: 180W Peak / 70W RMS 16Ω: 125W Peak / 70W RMS 8Ω (Bridge): 440W Peak / 140W RMS 70V / 100V: 140W RMS |
| Preset Options | Flat, dBTechnologies speaker, User preset |
| Mains Connection | IEC 10A connector |
| PFC (Power Factor Correction) | Yes |
| Nominal Voltage | 115Vac – 240Vac @ 50/60Hz |
| Operating Voltage | 90Vac – 264Vac @ 50/60Hz |
| AD/DA Conversion | 24 Bit @ 48kHz (AD & DA) |
| Limiters | Compressor on processing channels Peak limiter on output channels |
| Inputs | 4 Analog Balanced (EuroBlock 3.81 mm), 4 Dante Channels |
| Outputs | 4 Output Channels (EuroBlock 5.08 mm) |
| USB Interface | Frontal USB (AuroraNet setup & control) |
| Networking | 2 x RJ45 Ethernet (Dante Primary/Secondary, AuroraNet) |
| Width | 222 mm (8.7 in) |
| Height | 44 mm (1.7 in) |
| Depth | 256 mm (10.1 in) |
| Weight | 1.82 kg (4.01 lbs) |
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