TOA DA-250DH 2-Channel 70V Amplifier

About: TOA DA-250DH 2-Channel 70V Amplifier

The DA-250DH is a 2-Channel Digital Power Amplifier designed for 70 V line high-impedance distribution and features lightweight, compact, high power output, and high efficiency. It delivers 250 W × 2 channels (19.6 Ω 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).

• Power Source 120 V AC, 50/60 Hz
• Amplification System Class D
• Power Consumption 120 W (based on UL/CSA standards)
• 580 W (rated output 70 V line, 19.6 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 (70 V line, 19.6 Ω)
• 1 channel (BRIDGE): 500 W × 1 (140 V line, 39.2 Ω)
• M4 screw terminal, distance between barriers: 8.8 mm (0.35")
• Frequency Response 20 - 20,000 Hz (±1 dB): HPF OFF/50 - 20,000 Hz (-3 dB, +1 dB): HPF ON
• (selectable with the inner jumper)
• Total Harmonic Distortion 0.1% (1 kHz), 0.3% (20 - 20,000Hz): HPF OFF
• 0.1% (1 kHz), 0.3% (100 - 20,000 Hz): 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 (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
• Option Matching transformer: MT-251H