Features
Output Topology structure | Half-bridged |
|
Modulation method | Analogue input ,PWM | |
Output power | 250W@8Ω 500W@4Ω | 1kHz,THD+N=1%@8Ω 1kHz,THD+N=1%@4Ω 1kHz,THD+N=1%@8Ω |
THD+N | 0.01% | 1kHz,1w |
Efficiency | 80% | 1kHz,500w |
S/N | >110dB(full power) | A-weighty |
Frequency Response | <+/-1.5dB | 20~20kHz@8Ω |
Minimum Load Impedance | 2Ω 4Ω | Stereo,Mono Bridge mode |
Power supply | 110V/220V AC 50/60Hz | ±20% |
Quiescent power dissipation | <20w | |
External dimension | 132 x 135 x 60mm | |
General Description
Powered Digital Amplifier Module Series of Shenzhen Bao Ye Heng Co., Ltd are mainly designed for the competitive audio power amplifier market and the powered speaker market. It features with low cost, good sound, high effeciency and reliability. Perfect protection functions and favorable EMC help your products in quick occupation into the market.
Applications include:
1. Powered speakers and Subwoofers
2. Professional Audio
3. Public Address systems
4. High-end stereo and multi-channel amplifiers
Brief Theory Introduction
The Powered Digital Amplifier Module of Shenzhen Bao Ye Heng Industrial Development Co., Ltd is composed of digital amplifier module in high efficiency and excellent sound, and switch power supply with high peak power, low electromagnetic interference. The module provides various protecting functions for itself and speakers.
The amplifier adopts patented digital audio processing technology, it has the below advantages:
Self-adaptive erasing noise and distortion
High stability and reliability
Favorable electromagnetic compatibility
Low idle current, high efficiency
Half bridge structure, imbalance output, can be bridged
Second-order Butterworth low pass filter
Power supply is high efficiency switch mode power supply, it has the below advantages:
Soft switch technology
Peak output power vs continuous output power is up to 3:1
Low EMI frequency modulated oscillator
Perfect protection features and automatic restart
110VAC and 220VAC selectable
Other features
Over heat protection
Thermal output power control
Long term output power control
Output short-circuit, overload protection
Output DC protection
Amplifier under-voltage protection
Temperature controlled fan interface
Mute
Faulty indicate
Mains power selectable