สนใจติดต่อ ฝ่ายขาย 02 981 0944 มือถือ 080 614 4774
แฟ็กซ์ : 02 981 0744 E-mail : lsb@lsbthai.com
Digital Power Amplifiers Digital Quad Ampifier
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).
• FEATURES :
• DA-500FH
• 4x 500 Watts (100V)
• 2x 1000W bridged mode (100V)
• Limiter and High pass filter
• DA-550F
• 4x 550W (8 ohms)
• 2x 1000W bridged mode (8 ohms)
• Limiter
• 4x 350W (8 ohms) / 4x 550W (8 ohms) /4x 700W (16 ohms) 2x 1100W bridged mode (8 ohms)
• Limiter
• Class D design – 85% efficient!
• 30% lower power consumption than conventional amplifiers
• Compact, 2U rack-space design
• Stack up to 5 units without open spaces between units
• Lightweight (9kg)
• Independent power supply for each channel
• Low heat dissipation
• Recessed stepped attenuators
• Comprehensive protection circuitry
• Removable dust filters for easy maintenance
• Optional isolation transformer, model MT-251h (DA-550FH only)
Specification
- *0 dB = 0.775 V
| 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) |
| Input |
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 ゜F) or more)
temperature rise at power supply heat sink (80 ℃ (176 ゜F) or more) |
| S/N Ratio |
100 dB (A-weighted) |
| Crosstalk |
70 dB (A-weighted) |
| Control/Monitor |
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 ゜F to 104 ゜F) |
| Operating Humidity |
90 %RH or less (no condensation) |
| Finish |
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 |
