1.Product Introduction

SMA-OBIA (LEONIS Immersive Audio Digital Surround Power Amplifier-32 Channels) belongs to digital input CLASS-D power amplifier, digital interface access system, it adopts digital processing method in the whole process of signal processing and power amplification, in order to promote the speaker ,it uses low-pass filter to extract the analog audio signal in the CLASS. SMA-OBIA is one of immersive audio major components.

Figure 1. SMA-OBIA

Figure 2.Immersive Audio Major Components

Each digital-analog conversion will produce a loss of sound, SMA-OBIA link reduces DAC conversion link. So our structure is more rational, more integrated. The sound of the output will be direct, details better, dynamic amplitude larger, transient better, sound light and pure. It effectively overcomes defects of the traditional analog amplifier (such as big volume, big distortion, low power efficiency, etc.). Its power utilization rate can be up to 95%.

Figure 3.Typical Application OF SMA-OBIA  

2.Features

----High integration,32 channels output

----High power output, attain to cinema level

----Digital input interface

----32 channels analog output

----Have perfect protection mechanism, over-current protection, overvoltage protection, over temperature protection

----Adjust acoustic gain, status display, BTL-PBTL mode switch of per channel by network protocol