DB Technologies IA504R - 280W 4-Channel at 4-Ohm 70V/100V Power Amplifier with Integrated DSP and RDNet in Black Finish

The DB Technologies IA504R is a high-performance 4-channel power amplifier designed for passive speakers, offering exceptional audio control and versatility for professional audio applications. Equipped with integrated RDNet connectivity, the IA504R allows for remote control and in-depth configuration using AURORA NET software, providing seamless integration and real-time management of connected speakers. This amplifier delivers up to 500W RMS across its 4 channels, offering a powerful Class-D amplifier section that can handle demanding audio environments, ensuring reliable performance for medium to large-scale installations.

With a full-range SMPS (Switch Mode Power Supply) and fan-forced cooling, the IA504R operates efficiently and quietly, even in high-performance environments. The amplifier supports both low-impedance (4Ω, 8Ω, 16Ω) and constant voltage (70V/100V) applications, providing 280W RMS at 4Ω per channel, or up to 619W in bridged mode at 8Ω. The unit also supports a peak power output of 425W at 4Ω and 440W in bridged mode, delivering high power for large installations. The IA504R's DSP allows for detailed customization of the speaker's output, ensuring an optimal listening experience by adjusting settings like equalization, limiter, and thermal protection. The user can easily load dBTechnologies speaker presets via AURORA NET, streamlining system setup for accurate sound reproduction.

The IA504R is designed to fit in a compact 1U half-rack size, making it easy to install in various setups, whether in a standard audio rack or placed on a flat surface with optional brackets for mounting. Its advanced processor handles 32-bit DSP processing with 24-bit/48 kHz AD/DA conversion, providing crystal-clear audio performance with a frequency response of 20Hz to 20kHz and a signal-to-noise ratio of over 103 dB(A). The amplifier's intuitive control system, including a reset button and USB B-type connector for data control, allows for easy monitoring and adjustments, while RDNet connectivity ensures centralized control of multiple amplifiers in complex installations.

Features

• 4 x 280W RMS output at 4Ω for high-performance audio delivery in passive speaker systems
• Supports 70V/100V constant voltage and low-impedance systems for versatile integration
• Peak power of 425W at 4Ω and 619W in bridged mode for powerful audio output
• Integrated 32-bit DSP for advanced audio control, including preset modes and user customization
• Full-range SMPS with power factor correction (PFC) for efficient and stable power delivery
• Fan-forced cooling system for optimal performance and heat dissipation
• RDNet connectivity for remote control and monitoring through AURORA NET software
• 24-bit/48 kHz AD/DA conversion for high-quality audio processing
• Compact 1U half-rack design (8.7 x 1.7 x 10.1 inches) for easy installation in standard audio racks
• Multiple input and output connectors, including Euroblock for balanced analog input and RDNet for networking
• USB B-type connector for data control and system integration
• Dual active peak, RMS, and thermal limiters for reliable performance and protection
• Weighs 4.01 lbs, providing a lightweight and efficient solution for large-scale installations

Specifications

Acoustical Data

• Frequency Response [±0.5dB]: 20 - 20000 Hz
• Amplifier Gain: 31 dB
• Signal to Noise Ratio: >103 dB(A)
• Input Sensitivity: +4 dBu
• Crosstalk: 100 dB
• Maximum Input Level: +18 dBu
• Input Impedance: 20 kOhm

Amplifier

• Amplifier: Class-D
• Power Supply: Full-range SMPS
• Cooling: Fan forced (front to back)
• Operating Range: 100-240V~ (50-60Hz)
• RMS Out Power single channel:
  • 280 W @ 4 Ω, 245 W @ 8 Ω
  • 135 W @ 16 Ω, 280 W @ 8 Ω (bridge)
  • 250 W @ 70V, 240 W @ 100V
• Peak Power single channel:
  • 425 W @ 4 Ω, 245 W @ 8 Ω,
  • 135 W @ 16 Ω, 619 W @ 8 Ω (bridge)
• RMS Out Power 4 channels:
  • 70 W @ 4 Ω, 70 W @ 8 Ω,
  • 70 W @ 16 Ω, 140 W @ 8 Ω (bridge),
  • 140 W @ 70V, 140 W @ 100V
• Peak Power 4 channels:
  • 225 W @ 4 Ω, 180 W @ 8 Ω,
  • 125 W @ 16 Ω, 440 W @ 8 Ω (bridge)

Processor

• Limiter: Dual Active Peak, RMS, Thermal
• Controller: 32-bit DSP
• AD/DA Converter: 24 bit/48 kHz
• Control: Reset button

Input

• Signal Input Connector: Euroblock 3.81mm
• Signal Output Connector: Euroblock 5.08mm
• RDNet connectors: Data In/Data Out
• USB connector: USB B-type (for DATA CONTROL)

Mechanics

• Width: 8.7 inches
• Height: 1.7 inches
• Depth: 10.1 inches
• Weight: 4.01 lbs