04-31, Skudai Parade
Shopping Complex,
Batu 10, Jalan Skudai,
81300 Skudai, Johor,

Lot 3, Block B,
Subang Light Industrial Park,
Off Jalan Subang 2, USJ 1,
47610 Subang Jaya,
Selangor, Malaysia.

14, Jalan Medan Ipoh 9,
Bandar Baru Medan,
31400 Ipoh,
Perak, Malaysia.


DA-550F.Multichannel Power Amplifier

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DA-550F.Multichannel Power Amplifier

The DA-550F is a 4-Channel Digital Power Amplifier featuring lightweight, compact, high power output, and high efficiency. It delivers 550 W × 4 channels (4 Ω output) using a switching power supply. Each channel is equipped with an independent power section. Its Control/Monitor terminals permit power ON/OFF control of the individual channels and status monitoring for the power ON/OFF on each channel, protection on each channel, and fan operation. Prepare the control panel or status monitor display panel separately. It can be mounted in an EIA Standard equipment rack (2 unit size).


Power Source
220 - 240 V AC
Amplification System Class D
Power Consumption
480 W (based on EN standards)
2750 W (rated output 4 Ω × 4)
1550 W (rated output 8 Ω × 4)
4 circuits
10 kΩ
XLR-3-31 type connector
CH 1 mode ON/OFF switch (ON: CH 1 to All ch
Rated Output
4 channels: 550 W × 4 (4 Ω)
2 channels (BRIDGE): 1100 W × 2 (8 Ω)
M4 screw terminal
Frequency Response 20 Hz - 20 kHz (-2 dB
Total Harmonic Distortion
0.1 % (1 kHz)
0.15 % (20 Hz - 20 kHz)
Protection Circuit
Protection against excessive current flow due to overload
unusual DC voltage output
temperature rise at power amp. heat sink (100 (212 bF) or more)
temperature rise at power supply heat sink (80 (176 bF) or more)
S/N Ratio 100 dB (A-weighted)
70 dB (A-weighted)
Control input: Power ON/OFF status of the individual channels
photocoupler input
Monitor output: Power ON/OFF status of the individual channels
Protection status of the individual channels
Fan operation status
photocoupler open collector output
control current: 12 mA or less
Connector: RJ-45 connector × 2
Connection cable: Shielded Category 5 twisted pair cable for LAN (CAT5-STP)
Maximum cable distance: 600 m (656.17 yd)
LED Indicator
Power (blue) × 1
Protect (red) × 4
Cooling Forced air cooling
Operating Temperature -10 to +40 (14 bF to 104 bF)
Operating Humidity 90 %RH or less (no condensation)
Panel: Aluminum
Case: Plated steel sheet
Dimensions 482 (W) × 88.4 (H) × 404.2 (D) mm (18.98 × 3.48' × 15.91)
Weight 9 kg (19.84 lb)
Accessory Power cord (2 m (6.56 ft))
Rack mounting screw (with washer) …4



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