Class D Power Amplifier 4 x 250W 100V line 1RU High and 6.8kg weight

$3,519.00 $3,167.10

In Stock
SKU: DA250FH Categories: , Tag:


TOA DA250FH is a 4-Channel Digital Power Amplifier designed for 100 V line high-impedance distribution and features lightweight, compact, high power output, and high efficiency. It delivers 250 W x 4 channels (19.6 Ohm 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). TOA DA250FH can be mounted in an EIA Standard equipment rack (1 unit size).

Equipped with an independent power supply for each channel, the new multi-channel amplifiers offer unmatched reliability and performance. Other features include recessed stepped attenuators for precise gain calibration, removable dust filters for easy maintenance, and optional isolation transformer.


  • Class D amplifier
  • Four channels
  • 4x 250W into 100V line
  • 1RU


Power Source 220 – 240 V AC
Amplification System Class D
Power Consumption 120 W (based on EN standards)
580 W (rated output 100 V line
Input 2 circuits
10 kΩ
XLR-3-31 type connector
CH 1 mode ON/OFF switch (ON: PARALLEL
Rated Output 2 channels: 250 W × 2 (100 V line)
M4 screw terminal
Frequency Response 50 Hz – 20 kHz (-3 dB
Total Harmonic Distortion 0.1 % (1 kHz)
0.3 % (100 Hz – 20 kHz)
Protection Circuit Protection against excessive current flow due to overload
short circuit
temperature rise at power amp. heat sink (100 °C (212 °F) or more)
temperature rise inside the unit (80 °C (176 °F) or more)
S/N Ratio 100 dB (A-weighted)
Crosstalk 70 dB (A-weighted)
LED Indicator Power (blue) × 1
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
Case: Plated steel sheet
Dimensions 482 (W) × 44 (H) × 401.8 (D) mm (18.98 × 1.73″ × 15.82)
Weight 5.3 kg (11.68 lb)
Accessory Power cord (2 m (6.56 ft)) …1
Tamper-proof cap …2
Option Matching transformer: MT-251H