DSP DIGITALBOARD

 

80477

CHANNEL A

NRS 90208

INPUT

A

 

D

SRAM

CLOCK

512k x 8

12.288 MHz

D

A

AMPLIFIER

INTERFACE

AMP INPUT CH. A (SIGNALA / SENSINA)

BLOCK

 

MONITOR

A

PARALLEL

IN A

 

D

LPF

+15V

ANALOG POWER

 

 

D

 

 

GAINRANGING

 

 

24 BIT ADC

CHANNEL B

NRS 90208

 

INPUT

 

A

 

 

D

 

MONITOR

A

PARALLEL

IN B

 

 

 

D

 

 

GAINRANGING

 

 

24 BIT ADC

24BIT

DSP

CONTROL / SUPERVISION: INPUT / OUTPUT LEVEL METER PILOT SIGNAL GENERATOR PILOT SIGNAL DETECTION IMPEDANCE MEASUREMENT

SIGNAL PROCESSING:

FILTERS, X-OVER

DELAY

COMPRESSOR, LIMITER ROUTING, LEVEL, POLARITY

A

DUAL

24 BIT DAC

LPF

D

A

DUAL ADC

D

A

DUAL ADC

-15V

SUPPLY

AMP INPUT CH. B (SIGNALB / SENSINB)

OUTPUT CURRENT CH.A (OUTCURA+/-) OUTPUT CURRENT CH.B (OUTCURB+/-)

OUTPUT VOLTAGE CH.A (OUTVOLA+/-) OUTPUT VOLTAGE CH.B (OUTVOLB+/-)

DIAGRAM RCM-

32

SLAVE OUT A

 

SLAVE OUT B

MONITOR

 

 

OUT A

 

MONITOR

 

OUT B

4

STATUS

VU INPUT A

VU INPUT B

RESET

WATCHDOG

EEPROM

SPI

D

+5V

+3.3V

INPUT LEVEL CH. B

INPUT LEVEL CH. A

POWER SUPPLY

CHASSIS

+5V

STANDBY POWER SOURCE

GND

 

24

GPIO CONTROL PORT

I/O

A

LIMITER CH. A (LIMOUTA) LIMITER CH. B (LIMOUTB) AMP TEMPERATURE (TEMP)

DEVICE

8

ADDRESS

NRS 90227

CAN / RS-485

TRANSCEIVER

MONITOR BUS

CAN / RS-485

RJ-45

DC

+5V

DC

CLOCK

CPU +

FLASH

RAM

I/O

CAN

UART

8

GROUND

FAULT

DETECTION

AMP TYPE CODE (AMP_ID1-8)

STANDBY/ON SIGNAL (STANDBY) AMP PROTECT (PROTECT)

GROUND FAULT CH. A (GNDFLTA)

GROUND FAULT CH. B (GNDFLTB)

AMP OUTPUT RELAYS (TIMER)

MAINS POWER ON/OFF (POWER_ON)

Page 32
Image 32
Electro-Voice P900RL, P1200RL owner manual Block

P1200RL, P900RL specifications

Electro-Voice P900RL and P1200RL are high-performance power amplifiers designed for various audio applications, including live sound reinforcement, installations, and studio settings. These amplifiers stand out in the market due to their innovative technologies and robust features, making them suitable for both professional audio engineers and audio enthusiasts.

The P900RL model delivers a powerful 900 watts per channel at 4 ohms, while the P1200RL offers an even more impressive output of 1200 watts per channel at the same impedance. This significant power enables these amplifiers to drive a wide range of loudspeakers proficiently, ensuring clean and dynamic sound reproduction with minimal distortion.

One of the key features of the P900RL and P1200RL is their efficient Class H topology. This technology improves energy efficiency by maintaining high power output with less heat. Class H amplifiers dynamically adjust their power supply voltage according to the input signal, resulting in reduced power consumption and increased longevity of the components. This makes the P series amplifiers not only powerful but also environmentally friendly.

Both models come equipped with a built-in limiter and comprehensive protection circuitry to prevent damage from overheating, short circuits, and overloading, ensuring safety and reliability in demanding environments. Additionally, the amplifiers feature a tri-mode operation, enabling them to be configured for stereo, parallel, or bridged mono setups, providing versatility for various audio applications.

The P900RL and P1200RL also include advanced signal processing capabilities, including a variable low pass filter for enhanced sound control and clarity. The integrated cooling system maintains optimal operating temperatures, allowing for extended use without the risk of thermal issues.

Audio connectivity is straightforward with both XLR and ΒΌ-inch TRS inputs, allowing the amplifiers to interface with a variety of audio sources. The professional-grade output connectors ensure secure and reliable connections to speakers, critical for live sound applications.

In conclusion, the Electro-Voice P900RL and P1200RL amplifiers offer a compelling combination of power, efficiency, and versatility. With their advanced technologies and protective features, they cater to the demanding needs of sound professionals while delivering high-quality audio performance suitable for any occasion.