| Model | DA-550F |
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| Power Source | 220 - 240 V AC, 50/60 Hz |
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| Amplification System | Class D |
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| Power Consumption | 480 W (based on EN standards) 2750 W (rated output 4 Ω x 4) 1550 W (rated output 8 Ω x 4) |
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| Input | 4 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: CH 1 to All ch, OFF: Each ch) |
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| Rated Output | 4 channels: 550 W x 4 (4 Ω), 350 W x 4 (8 Ω) 2 channels (BRIDGE): 1100 W x 2 (8 Ω) M4 screw terminal, distance between barriers: 8.8 mm (0.35) |
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| Frequency Response | 20 Hz - 20 kHz (-2 dB, +1 dB) |
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| Total Harmonic Distortion | 0.1 % (1 kHz) 0.15 % (20 Hz - 20 kHz) |
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| Signal to Noise Ratio | 100 dB (A-weighted) |
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| Crosstalk | 70 dB (A-weighted) |
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| Control/Monitor | Control input: Power ON/OFF status of the individual channels photocoupler input, drive voltage: 9 V DC (Min) - 14 V (Max), 12 V (Typ) Monitor output: Power ON/OFF status of the individual channels, Protection status of the individual channels, Fan operation status photocoupler open collector output, withstand voltage: 30 V DC, control current: 12 mA or less Connector: RJ-45 connector x 2 Connection cable: Shielded Category 5 twisted pair cable for LAN (CAT5-STP) Maximum cable distance: 600 m (656.17 yd) |
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| Protection Circuit | Protection against excessive current flow due to overload, short circuit, unusual DC voltage output, temperature rise at power amp. heat sink (100 ℃ (212 ℉) or more), temperature rise at power supply heat sink (80 ℃ (176 ℉) or more) |
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| LED Indicator | Power (blue) x 1, Input (green) x 4, Output (yellow) x 4, Peak (red) x 4, Protect (red) x 4 |
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