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5.1.2 Simplified block diagram

The core of the LA8 is a DSP engine driving four channels of amplification. The LA8 also features two analog or digital

inputs, a flash memory for preset storage and management, high performance A/D-D/A converters for audio signals, an

auto-sensing SMPS (Switched Mode Power Supplies), a front panel user interface and a Fast Ethernet device for

network remote control. The management of the LA8 resources is performed by an embedded Operating System

(Linux).

Figure 4: LA8 simplified block diagram

5.2 Signal processing and amplification

5.2.1 Analog input

The LA8 can be fed with two balanced analog audio signals using the appropriate input ports (see Figure 3).

Each of the analog input ports is ESD protected and equipped with one XLR3 female connector.

The analog input panel also features two link ports (see Figure 3) passively connected to the input ports. It allows

transmitting the corresponding input signal to daisy-chained amplified controllers.

Each of the analog link ports is ESD protected and equipped with one XLR3 male connector.

To be processed by the DSP, the analog signal needs to be converted into a digital signal. For this purpose, the LA8

amplified controller is fitted with two cascaded 24 bit Analog/Digital converters with a sampling rate of 96 kHz allowing

an exceptional encoding dynamic range of 130 dB.