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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
In the Box
Toa Electronics DA-250F - 4-Channel Digital Amplifier (4 x 250W @ 4 Ohms)
3-Pin Removable Terminal Plugs
Volume Control Caps
5-Year Limited Warranty
Table of Contents
4 x 250W (4 Ohms)
4 x 170W (8 Ohms)
2 x 500W (8 Ohms Bridged)
20Hz - 20kHz (±1dB)
Total Harmonic Distortion (THD)
0.3% (20Hz - 20kHz)
+4dB (1.23V) or -10dB (0.24V) (Selectable with Inner Jumper)
10 kOhms, Electronically Balanced
Signal to Noise Ratio
1 x AC Power Input
4 x 3-Pin Removable Terminal Block Input Connectors
1 x Screw Terminal Strip Output (4 Channels)
1 x Power Switch
4 x Input Volume Control Knobs
2 x Bridge On/Off Buttons
1 x Ch1 Mode On/Off Button
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