Amply 4 kênh TOA DA-250F

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Amply 4 kênh TOA DA-250F

Amply 4 kênh TOA DA-250F
The DA-250F is a 4-channel Digital Power Amplifier featuring lightweight, compact, high power output, and high efficiency. It delivers 250 W x 4 channels (4 Ω output) using a switching power supply. Each channel is equipped with an independent power section. It can be mounted in an EIA Standard equipment rack (1 unit size).
Đặc tính kỹ thuật

Power Source 120VAC, 50/60 Hz
Amplification System Class D
Power Consumption 200W (based on UL/CSA standards)
1300W (rated output 4 Ω x 4)
850W (rated output 8 Ω x 4)
Input 4 circuits, +4 dB (1.23V) (input level control in maximum position),
10 kΩ, electronically-balanced, removable terminal block (3 pins)
CH 1 mode ON/OFF switch (ON: CH 1 to All ch, OFF: Each ch)
Rated Output 4 channels: 250 W x 4 (4 Ω), 170 W x 4 (8 Ω)
2 channels (BRIDGE): 500 W x 2 (8 Ω)
M4 screw terminal, distance between barriers: 8.8 mm
Frequency Response 20 - 20,000 Hz (±1 dB)
Total Harmonic Distortion 0.1% (1 kHz)
0.3% (20 - 20,000 Hz)
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 100 dB (A-weighted)
Crosstalk 70 dB (A-weighted)
LED Indicator Power (blue) x 1, Input (green) x 4, Output (yellow) x 4, Peak (red) x 4, Protect (red) x 4
Cooling Forced air cooling
Operating Temperature -10℃ to +40℃
Operating Humidity 90% RH or less (no condensation)
Finish Panel: Aluminum, black, alumite Case: Plated steel sheet
Dimensions 482 (W) x 44 (H) x 401.8 (D) mm
Weight 6.6 kg
Accessory Power cord (2 m) …1, Removable terminal plug (3 pins) …4,
Tamper-proof cap …4

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