½RU Power Amplifier with DSP. 4 x125W @ 4/8 Ohms, 70/100V. RDNet Interface

IA504 is a half rack sized class-D power amplifier that can work both for constant voltage systems (70 or 100 Volts) as well as professional audio applications with 4 time 125 W 4 ohms, fit for stereo or bridge configuration. Two versions are available: both are equipped with onboard DSP, full range PSU with Power factor correction and a GPIO interface, but they differ on the networking side.

In facts, IA504R version comes with RDNet ports, and IA504D with Dante ports, able to embed remote control and digital audio-in.

Specifications

• Type: CLASS D Half-rack Amplifier

• Single channel mode: 4 Ohm / 8 Ohm / 16 Ohm (no 70V / 100V)
• Bridged mode: 8 Ohm / 16 Ohm
• Preset: Flat, dBTechnologies speaker, User preset
• Input Impedance: 20 kOhm balanced
• Frequency Response: 20 - 20.000 Hz

• Total rated power: 280 W RMS @ 230Vac / 250 W RMS @ 120Vac
• Single channel drive:
  4 Ohm: 425W Peak / 280W RMS
  8 Ohm: 245W Peak / 245W RMS
  16 Ohm: 135W Peak / 135W RMS
  8 Ohm (Bridge): 619W Peak / 280W RMS
  70V: 250W RMS
  100V: 240W RMS
• All channels driven:
  4 Ohm: 225W Peak / 70w RMS
  8 Ohm: 180W Peak /70 W RMS
  16 Ohm: 125W Peak / 70W RMS
  8 Ohm (Bridge): 440W Peak / 140W RMS
  70V: 140W RMS
  100V: 140W RMS
• Mains connections: IEC 10A connector
• PFC: Yes
• Nominal Voltage: 115Vac - 240Vac @50/60Hz
• Operating Voltage: 90Vac - 264Vac @50/60Hz

• AD: 24 Bit @48kHz
• DA: 24 Bit @48kHz
• Limiters:
  Compressor on processing channels
  Peak limiter on output channel (also used in dBTechnologies preset)

• Input Channel: 4 Analog Balanced (EuroBlock 3.81mm)
• Output Channel: 4 (EuroBlock 5.08mm)
• Service Data: Frontal USB (AuroraNet setup & control)
• Networking: 2 x RJ45 RDNet (AuroraNet setup & control)

• 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)