Description

Constant voltage power amplifier board 100W audio amplifier module

CVA-1100

CVA-1100 is a 100W constant power amplifier board, which consists of a power supply unit and a power amplifier unit. It is specially designed for distributed speaker systems such as background music systems, alarm systems, and broadcasting systems. It can directly output 70V/100V RMS continuously without output transformer, which means you can connect the output directly to distributed speakers with transformers. In addition to the default constant voltage mode, the CVA-1100 can also be used as a constant resistance amplifier board to drive 4-8 ohm speakers for local audio playback. With high reliability and stability, the CVA-1100 is equipped with fully protected circuits, making it perfect for demanding commercial and industrial applications.

Transformerless 70V/100V RMS output

The CVA-1100 can directly output 70V/100V RMS continuously without an output transformer, greatly reducing weight and size, and improving the frequency response and distortion that may be affected by the output transformer. You can connect the CVA-1100 directly to distributed speakers, greatly simplifying installation and integration.

Support constant voltage and constant resistance mode

In addition to the default constant voltage mode of the constant voltage system, the CVA-1100 also supports driving low-impedance speakers for local audio playback, improving the flexibility and scalability of the entire system. Switching between the two modes is extremely simple. We left a switch on the CVA-1100 to toggle.

Wide power supply range from 90VAC-254VAC

The CVA-1100 supports a wide power supply range of 90VAC-254VAC. Therefore, it supports universal mains power supply of 110VAC and 220VAC. High-quality industrial terminals are installed on the CVA-1100. All you need to do is power up the CVA-1100 and wait for it to start up, nothing else is required.

Two-stage gain adjustable

The CVA-1100 provides two levels of gain for you to choose from, a high-level gain of 37.7dB (80V/V) and a low-level gain of 32dB (40V/V). There is a switch on the CVA-1100 to adjust the gain level. The output voltage is determined by the input audio voltage and gain.

Simple control functions

To help customers easily control the system, we equip the CVA-1100 with the necessary control functions. As we all know, CVA-1100 is a power amplifier composed of a power supply unit and a power amplifier board. The CVA-1100 supports half power control, that is, once the function is enabled, the output voltage of the power supply unit will be reduced from ±72V to ±56V to reduce power consumption.

External LEDs for operating status monitoring

Ports for external LEDs are provided on the CVA-1100 for better monitoring of system health. 3 kinds of LED indicators: power, signal detection and protection. With these LEDs, you can get a better understanding of the CVA-1100, even when it is integrated into the cabinet.

Comprehensive protection with high reliability

Considering the strict requirements for reliability and stability of distributed loudspeaker systems, we developed the CVA-1100 with full protection circuits (OTP, OVP, UVP, DC bias protection) to ensure that it can operate stably for a long time. In addition, all CVA-1100s need to pass a series of strict tests such as HASS and HALT before storage, and record all test data.