TOA Electronics DA-250F CU | 250W 4-Channel Digital Power Amplifier
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TOA Electronics DA-250F CU | 250W 4-Channel Digital Power Amplifier
Description
Description
The TOA DA-250F is a lightweight, compact 4-channel digital power amplifier featuring high power output, delivering 250 Watts per channel (4 Ohm output) using a switching power supply. Each channel is equipped with an independent power section. This amp can be mounted in an EIA standard equipment rack (1RU).
The DA Series multi-channel digital power amplifiers are ideal for multi-zone distributed speaker systems and professional sound applications. Engineered with Class D technology, the DA Series amplifiers operate at 85 percent efficiency and consume almost one-third less power than conventional analog amplifiers. The compact and lightweight design and ultra-low heat dissipation allow designers to rack-mount up to five units without open space between units.
The DA Series is comprised of high and low impedance four-channel models each equipped with an independent power supply for each channel to assure continuous operation and unmatched reliability and performance. Other features include recessed stepped attenuators for precise gain calibration, removable dust filters for easy maintenance, and optional isolation transformer.
Key Features
- 4x 250W (4?), 4x 170W (8?), 2x 500W bridged (8?), Limiter
- Class D design – 85% efficient
- 30% lower power consumption than conventional amplifiers
- Stack up to 5 units without open spaces between units
- Lightweight (14.6 to 19.4lbs.)
- Independent power supply for each channel
- Low heat dissipation
- Recessed stepped attenuators
- Comprehensive protection circuitry
- Removable dust filters for easy maintenance
- Optional transformer: 8? to 70V transformer (300W), model MT-450M
- Five-year warranty
Specifications
Specifications
Specifications
- Power Source: 120VAC, 50 / 60Hz
- Amplification System: Class D
- 200W (based on UL / CSA standards)
- 1200W (rated output 70V line, 19.6? × 4)
- Input: 4 circuits, +4dB* (1.23V) (input level control in maximum position), 10k?, electronically-balanced, removable terminal block (3 pins) - CH 1 mode ON/OFF switch (ON: CH 1 to All ch, OFF: Each ch)
- 4 channels: 250W × 4 (70V line, 19.6?)
- 2 channels (BRIDGE): 500W × 2 (140V line, 39.2?)
- M4 screw terminal, distance between barriers: 8.8mm
- 20 - 20,000Hz (± 1dB): HPF OFF / (selectable with the inner jumper)
- 50 - 20,000Hz (-3dB, +1dB): HPF ON
- Total Harmonic Distortion: 0.1% (1kHz), 0.3% (20 - 20,000Hz): HPF OFF, 0.1% (1kHz), 0.3% (100 - 20,000Hz): HPF ON
- Protection Circuit: Protection against excessive current flow due to overload, short circuit, unusual DC voltage output, temperature rise at power amp. heat sink (110? or more), temperature rise inside the unit (80? or more)
- S/N Ratio:: 100dB (A-weighted)
- Crosstalk: 70dB (A-weighted)
- LED Indicator
- Power (blue) × 1
- Input (green) × 4
- Output (yellow) × 4
- Peak (red) × 4
- Protect (red) × 4
- Cooling: Forced air cooling
- Operating Temperature: -10? to +40?
- Operating Humidity: 90% RH or less (no condensation)
- Panel: Aluminum, black, alumite
- Case: Plated steel sheet
- Dimensions: 482 (W) × 44 (H) × 401.8mm (D)
- Weight: 6.6kgs
Additional Specifications
| Type | AUDIO AMPLIFIER |
|---|---|
| UNSPSC Code | 52161600 |
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