Denon DN-474A 2x2-Channel 70V/100V Dual-Impedance Amplifier Installed Speaker

The Denon DN-474A 2x2-Channel Dual-Impedance Amplifier is designed for contractor/install market applications which specify installed speaker systems requiring 70V/100V inputs, and has the added flexibility of handling lo-impedance loads (4O/8O). The amplifier is split so that two channels handle the lo-impedance speakers, while two channels take care of the 70V/100V speaker runs.

This very versatile, one rack space amplifier has built-in short circuit protection - and LED indicators for signal present, clipping status and thermal interruption on the front panel. Engineered for the distribution of multiple 70V/100V speaker systems over long cable runs - such as in-ceiling speakers, surface-mount speakers and paging horns, and also for shorter runs to lo-impedance speakers.

Features:

• 4-Channel Class-D amplifier
• 2 X 120 Watts with 70V/100V outputs
• 2 X 150/90 Watts with 4/8-ohm loads
• Euroblock inputs and outputs
• Separate gain controls for each channel
• Signal, clipping and thermal interruption indicators
• Short-circuit and open-circuit protection

Specifications:

• Total Harmonic Distortion
• 
  Frequency Response
• 100 Hz - 15 kHz (0 +/-1 dBv)
  
  Signal to Noise Ratio
• > 95 dB
  
  Channel Separation
• > 70 dB
  
  Input Sensitivity
• 0.9 - 1.1 V (0 +/-1 dBv)
  
  Input Impedance
• 20 kΩ balanced or 10 kΩ unbalanced
  
  Connectors
• (8) Euroblock channel outputs - (2) per channel (70V, 100V, 4Ω, 8Ω)
• (4) Euroblock channel inputs (ground, -, +)
• (1) IEC AC power inlet
  
  Power
• Connection: IEC
  
  Input Voltage
• 100 - 240 VAC, 50/60 Hz
  
  Dimensions
• 19.0"w x 11.1"d x 1.7"h (483 x 281 x 44mm)
  
  Weight
• 10.4 lbs (4.7 kg)

Item Includes:

• DN-474A
• (2) 6-Pin Euroblock Connectors
• (4) 4-Pin Euroblock Connectors
• Power Cable
• Rack Ears with Screws
• User Guide
• Safety & Warranty Manual