The DA-250D is a 2-Channel Digital Power Amplifier featuring lightweight, compact, high power output, and high efficiency. It delivers 250 W × 2 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). Power Source 120 V AC, 50/60 Hz Amplification System Class D Power Consumption 120 W (based on UL/CSA standards) 650 W (rated output 4 Ω × 2) 420 W (rated output 8 Ω × 2) Input 2 circuits, +4 dB* (1.23 V) (input level control in maximum position), 10 kΩ, electronically-balanced, removable terminal block (3 pins), XLR-3-31 type connector CH 1 mode ON/OFF switch (ON: PARALLEL, OFF: STEREO) Rated Output 2 channels: 250 W × 2 (4 Ω), 170 W × 2 (8 Ω) 1 channel (BRIDGE): 500 W × 1 (8 Ω) M4 screw terminal, distance between barriers: 8.8 mm (0.35") 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 (100℃ or more (212゜F)), temperature rise inside the unit (80℃ or more (176゜F)) S/N Ratio 100 dB (A-weighted) Crosstalk 70 dB (A-weighted) LED Indicator Power (blue) × 1, Input (green) × 2, Output (yellow) × 2, Peak (red) × 2, Protect (red) × 2 Cooling Forced air cooling Operating Temperature -10℃ to +40℃ (14゜F to 104゜F) Operating Humidity 90% RH or less (no condensation) Finish Panel: Aluminum, black, alumite Case: Plated steel sheet Dimensions 482 (W) × 44 (H) × 401.8 (D) mm (18.98" × 1.73" × 15.82") Weight 5 kg (11.02 lb) Accessory Power cord (2 m (6.56 ft)) …1, Removable terminal plug (3 pins) …2, Tamper-proof cap …2
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