3
1 Introduction
This chapter introduces the KB-DA2250 High Efficiency Power Amplifier features and
functions. The KB-
DA2250 High Efficiency Power Amplifier is referred to as “DA”
throughout the remainder of this manual.
The DA amplifies audio signal power it receives from audio input devices to maintain
clarity and volume when broadcast over many speakers.
Features
The DA includes the following features:
A CLASS-D power amplifier with high efficiency and energy conservation
Contains two independent channels
The rated output power of each channel is 250W
Each channel has 100V or 70V of output
Supports balanced or unbalanced audio input
Heat radiation through forced air-cooling mode
Able to automatically limit output voltage
Functions
The DA includes the following main functions:
Power Supply Protection
Temperature Regulation
Overload and Short Circuit Protection
Fault Detection and Fault Logs
Power Supply Protection
If a power supply fault occurs, the DA automatically disconnects the main power supply.
Summary of Contents for KB-DA2250
Page 4: ......
