TOA 4-Channel Digital Power Amplifier - DA500FHLCU

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The DA-500F-HL is a 4-Channel Digital Power Amplifier featuring lightweight, compact, high power output, and high efficiency. It delivers 500 W x 4 channels (70 V or 550 W into 8 ohm or 100 W into 4 ohm) 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).


It can be mounted in an EIA Standard equipment rack (2 unit size).

Power Source120 V AC, 50/60 Hz
Amplification SystemClass D
Power Consumption480 W (based on UL/CSA standards), 2600 W (rated output 8 Ω × 4)
Input4 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), HPF ON/OFF switch (-6 dB/oct, cut off frequency 50 Hz)
Rated Output4 channels: 500 W × 4 (9.8 Ω, 70 V line), 550 W × 4 (8 Ω), 100 W × 4 (4 Ω), 2 channels (BRIDGE): 1000 W × 2 (19.6 Ω, 140 V line), 1100 W × 2 (16 Ω), M4 screw terminal, distance between barriers: 8.8 mm (0.35")
Frequency Response20 - 20,000 Hz (-2 dB, +1 dB): HPF OFF, 50 - 20,000 Hz (-3 dB, +1 dB): HPF ON
Total Harmonic Distortion0.1% (1 kHz), 0.3% (20 - 20,000 Hz): HPF OFF, 0.3% (100 - 20,000 Hz): HPF ON
Protection CircuitProtection 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 at power supply heat sink (80℃ or more (176゜F))
S/N Ratio100 dB (A-weighted)
Crosstalk70 dB (A-weighted)
Control/MonitorControl 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: Under 12 mA, Connector: RJ-45 connector × 2, Connection cable: Category 5 twisted pair cable for LAN (CAT5-UTP), Maximum cable distance: 600 m (656.17 yd)
LED IndicatorPower (blue) × 1, Input (green) × 4, Output (yellow) × 4, Peak (red) × 4, Protect (red) × 4
CoolingForced air cooling
Operating Temperature-10℃ to +40℃ (14゜F to 104゜F)
Operating Humidity90% RH or less (no condensation)
FinishPanel: Aluminum, black, alumite Case: Plated steel sheet
Dimensions482 (W) × 88.4 (H) × 404.2 (D) mm (18.98" × 3.48" × 15.91")
Weight8.8 kg (19.4 lb)
AccessoryRemovable terminal plug (3 pins) …4, Tamper-proof cap …4
OptionMatching transformer: MT-251H

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