Toa Electronics DA-250F - 4-Channel Digital Amplifier (4 x 250W @ 4 Ohms)

Toa Electronics DA-250F - 4-Channel Digital Amplifier (4 x 250W @ 4 Ohms)


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The DA-250F from Toa Electronics is a high-quality 1RU digital amplifier designed for installed applications. It offers four channels of input and output, with removable terminal block inputs and a screw terminal strip for outputs. In addition to standard four-channel operation, the unit can be set to bridge mode, giving the unit two high-power output channels. If desired, the first input channel signal can be routed to all four 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-250F 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
Four channels of I/O, perfect for multiple zones
Selectable bridge mode provides two high-power outputs
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
Output Power 4 x 250W (4 Ohms)
4 x 170W (8 Ohms)
2 x 500W (8 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
4 x 3-Pin Removable Terminal Block Input Connectors
1 x Screw Terminal Strip Output (4 Channels)
Controls 1 x Power Switch
4 x Input Volume Control Knobs
2 x Bridge On/Off Buttons
1 x Ch1 Mode On/Off Button
Indicators 1 x Blue Power LED
4 x Green Input LEDs
4 x Yellow Output LEDs
4 x Red Peak LEDs
4 x Red Protect LEDs
Power Requirements 120VAC, 50/60Hz
Power Consumption 200W (@ 1/8 Rated Output x 4 Channels)
Dimensions (WxHxD) 19 x 1.7 x 15.7" (483 x 44 x 400mm)
Weight 14.5 lbs (6.6kg)
Packaging Info
Package Weight 18.08 lb
Box Dimensions (LxWxH) 23.23 x 22.44 x 3.54"
Toa Electronics DA-250F - 4-Channel Digital Amplifier (4 x 250W @ 4 Ohms)
  • Power Cord
  • 4 x 3-Pin Removable Terminal Plugs
  • 4 x Volume Control Caps
  • User Guide
  • 5-Year Limited Warranty
  • Be the first to review this item


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