TOA DA-250F Digital Power Amplifier 4 X 250 watt 4 Ohm
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Description
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.
Features
- 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) |
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.
Features
- 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) |
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