The dBTechnologies IA504R is a professional-grade, class-D half-rack power amplifier built for seamless integration into constant voltage systems (70V/100V) as well as low impedance audio applications. Delivering versatility and compact performance, it features four output channels with up to 125 W per channel at 4 ohms, and flexible configurations for stereo or bridge modes.
Designed for permanent installation and professional sound environments, the IA504R is equipped with advanced DSP, a full-range PSU, and power factor correction for reliable and consistent power handling. The amplifier supports both flat and customized presets, as well as specific presets tailored for dBTechnologies speakers. The onboard processor includes 24-bit AD/DA conversion at 48 kHz, with compression and peak limiting for secure audio output and speaker protection.
The IA504R distinguishes itself through its network control capabilities, featuring dual RJ45 RDNet ports for complete system monitoring, configuration, and audio routing through AuroraNet. The amplifier also offers frontal USB connectivity for easy setup and control.
With a wide input voltage range (90-264 Vac) and support for EuroBlock analog inputs and outputs, the IA504R integrates effortlessly into diverse installations. The compact form factor (half-rack size) and lightweight design (only 1.82 kg) make it ideal for installations with limited space, yet demanding high performance.
Whether used in commercial, hospitality, corporate, or entertainment environments, the IA504R offers reliable amplification with intelligent control in a space-saving chassis.
Features:
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Class-D half-rack amplifier
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4 x 125 W at 4 ohms
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Compatible with 70V / 100V constant voltage systems
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Stereo and bridge mode support
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Onboard DSP with limiter and compression
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Power factor correction (PFC)
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24-bit / 48kHz AD/DA conversion
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Frontal USB and RDNet ports for remote control
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Lightweight and compact form factor
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EuroBlock input/output connectors
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) |
| Outputs | 4 Output Channels (EuroBlock 5.08 mm) |
| USB Interface | Frontal USB (AuroraNet setup & control) |
| Networking | 2 x RJ45 RDNet ports |
| 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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