TOA DA-250DH Digital Power Amplifiers
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The DA-250DH is a 2-Channel Digital Power Amplifier designed for 100 V line high-impedance distribution and features lightweight, compact, high power output, and high efficiency. It delivers 250 W ? 2 channels (40 ? output) using a switching power supply. Each channel is equipped with an independent power section. It can be electrically isolated from the high-impedance speaker system by attaching the MT-251H Output Transformer (optional). It can be mounted in an EIA Standard equipment rack (1 unit size).
Product Features
- 100 V speaker outputs
- 2x 250 W rated power
- Class D design 85 % efficient
- Independent power supply for each channel
- Light weight and compact
- Stack up to 5 units without open spaces between units
- Selectable stereo or bridge operation (DA-250D)
- Forced-air cooling system
- Low heat dissipation
- Comprehensive protection circuitry
- Removable dust filters for easy maintenance
Application Examples
- Stadiums
- Gymnasiums
- Health & fitness clubs
- Auditoriums
- Multipurpose halls
- Shopping centers
- Houses of worship
- Restaurants
- Bars
Specifications
| DA-250DH | DA-250D | DA-250F | DA-250FH | |
|---|---|---|---|---|
| Power source | 220 - 240 V AC, 50 / 60 Hz | 220 - 240 V AC, 50 / 60 Hz | 220 - 240 V AC, 50 / 60 Hz | 220 - 240 V AC, 50 / 60 Hz |
| Rated output | 250 W (2 x 250 W (100 V line, 40 ?) | 250 W (2 x 250 W (4 ?) / 2 x 170 W (8 ?) | 250 W (4 x 250 W (4 ?) / 4 x 170 W (8 ?) / 2 x 500 W (8 ?, bridged) | 250 W (4 x 250 W (70 V / 100 V) |
| Frequency response | 20 Hz - 20 kHz (?1 dB) | 20 Hz - 20 kHz (?1 dB) | 20 Hz - 20 kHz (?1 dB) | 20 Hz - 20 kHz (?1 dB) |
| Distortion | < 0.1 % (at 1 kHz) | < 0.1 % (at 1 kHz) | < 0.1 % (at 1 kHz) | < 0.1 % (at 1 kHz) |
| Power consumption | 120 W (EN standard) | 120 W (EN standard) | 200 W (EN standard) | 200 W (EN standard) |
| S/N ratio | 100 dB (A-weighted) | 100 dB (A-weighted) | 100 dB (A-weighted) | 100 dB (A-weighted) |
| Number of channels | 2 | 2 | 4 | 4 |
| Indicator | Power (blue) x 1, Input (green) x 2, Output (yellow) x 2, Peak (red) x 2, Protect (red) x 2 | Power (blue) x 1, Input (green) x 2, Output (yellow) x 2, Peak (red) x 2, Protect (red) x 2 | Power (blue) x 1, Input (green) x 2, Output (yellow) x 2, Peak (red) x 2, Protect (red) x 2 | Power (blue) x 1, Input (green) x 2, Output (yellow) x 2, Peak (red) x 2, Protect (red) x 2 |
| Operating humidity | < 90% RH (no condensation) | < 90% RH (no condensation) | < 90% RH (no condensation) | < 90% RH (no condensation) |
| Operating temperature | -10?C to 40?C | -10?C to 40?C | -10?C to 40?C | -10?C to 40?C |
| Finish | Aluminium, Steel plate, alumite process, black | Aluminium, Steel plate, alumite process, black | Aluminium, Steel plate, alumite process, black | Aluminium, Steel plate, alumite process, black |
| Dimensions (W x H x D) | 482 x 44 x 401.8 mm | 482 x 44 x 401.8 mm | 482 x 44 x 401.8 mm | 482 x 44 x 401.8 mm |
| Weight | 5.3 kg | 5.3 kg | 6.8 kg | 6.8 kg |
| Accessory (included) | Power cord (2 m), Removable terminal plug (3 pins), Rack mounting screw (with plain washer/ 5 x 12), Tamper-proof cap | Power cord (2 m), Removable terminal plug (3 pins), Rack mounting screw (with plain washer/ 5 x 12), Tamper-proof cap | Power cord (2 m), Removable terminal plug (3 pins), Rack mounting screw (with plain washer/ 5 x 12), Tamper-proof cap | Power cord (2 m), Removable terminal plug (3 pins), Rack mounting screw (with plain washer/ 5 x 12), Tamper-proof cap |