Toa DA-250D User manual

Human Society with
Sound & Communication
DA SERIES
MULTICHANNEL POWER AMPLIFIER
■High-efficiency amplifier topology
•Class D design — 80 – 90% efficient!
•60% lower power consumption than conventional amplifiers
■Compact and lightweight
Only 6.6 kg (14.6 lb)!
DA-250F/FH (120V AC model)
■Enhanced reliability for trouble-free operation
•Independent power supply for
each channel
•Allows uninterrupted operation
in the events a channel
should fail
■Applications
•House of Worship • Presentation Room
•Restaurant • Fitness Club
•Sports Facility • Convention Center
•Bar/Lounge/Club • Boardroom
Conventional AB-class Amplifier
DA-250 Series
Efficiency vs Output
Efficiency (%)
Output (%)
100
90
80
70
60
50
40
30
20
10
0 2040 60 80 100
Wireless Microphone System
CD Player
DVD Player
Infrared Wireless Conference System
Wired Microphone
Digital Mixer DA Series Amplifier
PC Projector
Speakers
■DA-250 Series
•DA-250F: 4 ×250W (4 ohms)/170W (8 ohms)
2 ×500W bridged mode (8 ohms)
•DA-250FH: 4 x 250W (High-Z)
2 x 500W (140V bridged)*120V AC model only
•DA-250D: 2 x 250W (4 ohms)/170W (8 ohms)
1 x 500W bridged mode (8 ohms)
•DA-250DH: 2 x 250W (High-Z)
2 x 500W (140V bridged)*120V AC model only
■DA-500 Series
•DA-550F: 4 x 550W (4 ohms)/350W (8 ohms)
2 x 1100W bridged mode (8 ohms)
•DA-500FH (220-240V AC model only)
4 x 500W (High-Z)
•DA-500F-HL (120V AC model only)
4 x 500W (High-Z)
2 x 1000W (140V bridged)
Conventional Amp.
DA-250F/FH Amp.
DA-500 Series Amp.
Total: 16,000W
41U
Total: 16,000W
21U
Total: 16,000W
19U
Power Amplifier
Power
Supply
Power supply from transformer
Conventional Amplifier
Power Amplifier
With built-in power supply
AC power supply
DA Series Amplifier
Power
Supply
Power
Supply
Power
Supply
Power
Supply