General Information

Manufacturer

Manufacturer Part Number

Overview

The DA-250D from Toa Electronics is a high-quality 1RU digital amplifier designed for installed applications. It offers two channels of input and output, with removable terminal block inputs and a screw terminal strip for outputs. If desired, the first input channel signal can be routed to both outputs, perfect for multi-zone paging.

The front of the unit provides large control knobs for input level control, as well as LEDs to show input, output, power, peak, and protect status. The built-in protection circuitry protects against damages from short circuits, overloads, and overheating. Class-D circuitry provides excellent audio quality and allows the DA-250D to operate at 85 percent efficiency, so it consumes almost 1/3 less power than analog amplifiers.

Sleek, 1RU unit fits into any standard audio rack
Two channels of I/O, perfect for multiple zones
Terminal block inputs and a screw terminal strip for outputs make it easy to connect equipment
The channel 1 input may be routed to all outputs, perfect for paging
Class-D circuitry for great audio quality and efficiency
Independent power supply for each channel
Simple interface with front-panel level control knobs
Protection circuitry for short circuits, overheating, and overloads
Status LEDs for power, input, output, peak, and protect
Removable dust filters for easy cleaning

Features

• One Rack Space
• Class D Circuitry
• Independent Power Supply

Specifications

• Output Power
  • 2x 250W (4 Ohms)
  • 2 x 170W (8 Ohms)
  • 1 x 500W (8 ohms) bridged
  • 1 x 340W (16 Ohms) bridged
• Frequency Response : 20Hz - 20kHz (±1dB)
• Total Harmonic Distortion (THD)
  • 0.15% (1kHz)
  • 0.3% (20Hz - 20kHz)
• Input Sensitivity +4dB (1.23V) or -10dB (0.24V) (Selectable with Inner Jumper)
• Input Impedance 10 kOhms, Electronically Balanced
• Signal to Noise Ratio 100dB
• Connectors
  • 1 x AC Power Input
  • 2 x 3-Pin Removable Terminal Block Input Connectors
  • 1 x Screw Terminal Strip Output (2 Channels)
• Controls
  • 1 x Power Switch
  • 2 x Input Volume Control Knobs
  • 2 x Bridge On/Off Buttons
  • 1 x Ch1 Mode On/Off Button
• Indicators
  • 1 x Blue Power LED
  • 2 x Green Input LEDs
  • 2 x Yellow Output LEDs
  • 2 x Red Peak LEDs
  • 2 x Red Protect LEDs
• Power Requirements 120VAC, 50/60Hz
• Power Consumption 420W, 5.9A
• Dimensions (WxHxD) 19 x 1.7 x 15.7" (482 x 44 x 401mm)
• Weight 11.02 lbs (5kg)