Background Music System DPA2500

Class D 2-channel power amplifier

Description

1U digital power amplifier series is widely used in government buildings, stadiums, stations, airports, rail subway and other large public places of conference broadcast sound reinforcement system equipment. This power amplifier is specially developed for public broadcasting field. Ultra-thin body structure design, a variety of power, multiple channels for the actual needs of the project flexible choice, with small size, high output power, low heat, easy to use, high cost performance and other characteristics. Using our company's latest CLASS-D power amplifier technology, the sound is sweet and the protection function is perfect, the stability is high thus this leads power amplifier to adapt to a variety of complex, extreme environment. Rich interfaces including balanced/unbalanced connection, working status indicator, energy saving mode, high pass mode, constant voltage/constant resistance output, etc. provides users with a more natural, clearer, more realistic sound experience effect and the best choice of products in the real use of background music and amplified voice.

Features

High inverter energy saving switching mode power supply, super performance Class D low power amplifier;

1U chassis, 19 inch cabinet space, small consumption, less heat;

Front panel with signal, protection, peaking, output signal independent green/orange LED light and power input with blue light.

Complete short circuit, overload, high temperature, peak clipping and DC protection;

Built-in low cut pressure limiter effectively filters out unnecessary frequency response 20Hz-20K Hz music signals; More stable and reliable, clearer sound;

With double balanced/unbalanced signal input, double channel rated power 2*500W;

Amplitude adjustment and compensation with independent input gain control signal (-3dB-0db range adjustable VOL LEVEL);

High/low impedance, dual switching impedance balanced voltage output 4Ω/8Ω/70V/100V low impedance speaker;

With high resistance filter and sleeping mode dip switch, it can make the full frequency of the sound amplification output has no lower limit, and the broadcast intermediate frequency is clearer and brighter;

With automatic temperature control cooling fan, forced air cooling. The cooling fan draws air from the side and exits it from the back. Don’t block the air in/out ports;

This power amplifier can be with or without DC 24V version. If with DC 24V power input port, 100V to 240V AC input can be switchable and voltage adaptation range protection is at 20~27.5V. This way can avoid long-term exhaustion of the standby battery;

The output load can be set via the DIP switch;

Built-in automatic standby function saves power consumption. When there is no audio signal input, the power amplifier circuit stops working and the power supply circuit continues to work, so as to save power, reduce temperature rise and improve product life. Automatically exits the energy saving mode when there is a signal input;

MONO button, can achieve the function of 1 in 2 out.

Technical Data