61A
AV Multimedia Commercial Amplifier (with feedback suppression)
EU244HDP



High-definition HDMI input and output, supporting 3D video format, with more realistic and delicate images, and more stunning effects. Independently extract HDMI audio signals as local sound amplification;

• Recording output interface, convenient for organizing meeting records and saving important meeting content;

Efficient digital amplifier, adopting IR design scheme, high efficiency, clear sound quality, and strong penetration power;

Built in DSP algorithm based adaptive feedback suppression function (AFC), perfectly solves the problem of microphone whistling, no need for debugging, one click solution;

Can be connected to an external wall control touch screen for remote control and management, convenient and fast;

Exquisite craftsmanship, using SMT surface mount technology, with neat and beautiful circuit layout, minimizing electromagnetic interference caused by unreasonable circuit design and bringing noise to the system;

Professional function operation keys and concealed knob design, which can be easily operated by dismantling the magnetic high-end organic glass panel to set the required curing functions; This hidden design improves the safety, stability, and specificity of system operation, which can avoid damage to equipment or systems caused by nonprofessionals or non-trained users due to mis operation;

Optional U244DMH U-band wireless microphone, suitable for mid to high end electronic education equipment, multimedia classrooms, speech conferences, etc; The product operates in the globally recognized license free ISM green frequency band in the U-band, with a sampling rate of 32K/16bit, meeting the requirements for high-quality vocal transmission. In addition, dedicated RF technology and digital encoding methods give it market advantages such as low noise, no crosstalk, stable communication, and long transmission distance.



• 1 6.3 microphone input interface on the front panel;

• 2 balanced microphone signal inputs on the rear panel, each with a separate 48V phantom power supply;

• 4 HDMI high-definition inputs and 1 output, support 3D video format, resolution up to 1080p/60Hz, use standard AWG25 cable input transmission distance up to 25 meters, output transmission distance up to 15 meters, and extract high-definition audio signals for local sound reinforcement;

• 5 types of audio input signal switching: HDMI high-definition audio, 1 stereo input can be connected to an external CD player or other audio input, USB interface can directly read U disk audio signals, Bluetooth playback can transmit audio signals through mobile phones or tablets, SD card insertion can directly read audio signals;

• With 2-channel audio main output and independent recording output port;

• Microphone signal breakpoint processing interface, external equalizer, effector, etc., to expand larger space or meet entertainment needs;

• Built-in dual-channel digital amplifier 2×200W 8Ω (1KHZ, THD≤0.05%);

• It can be connected to the QK-244 wall control touch screen to achieve remote control and management via RS-485, with a maximum distance of 1 km;

• It has an RS232 interface for external connection to various brands of smart central control;

• It can be used with a 2.4G wireless microphone, which has a wider range of applications.

Audio input

Interface

Interface name

Number of channels

Standard input level

Maximum input level

Input impedance

MIC IN

Rear panel

XLR-3-31

2

-54dBu

-30d Bu

2.7kΩ

MIC IN

Front panel

PHONO

1

-54dBu

-30d Bu

2.7kΩ

USB

USB

1

Bluetooth

BLUETOOTH

1

CD IN

1

-10dBu

+10dBu

10kΩ

INSER

PHONO

1


Audio output

Interface

Interface name

Number of channels

Standard output level

Maximum output level

Load impedance

REC OUT

RCA

2

-5dBu

MAIN OUT

2

-10dBu

MIXER

XLR

2

-20dBu

+10dBu

10kΩ

USB front panel

USB

1

-10dBu

+20dBu

10kΩ

Speaker output

Screw type connection port

4

200W+200W (8Ω, 1KHZ, THD0.05%)


Video input/output

Interface

Model

Number of channels

HD input

HDMI 700P/60Hz 1080p/60Hz

4

HD output

HDMI 700P/60Hz 1080p/60Hz

1


Physical specifications

Power requirement:

450W

Dimensions:

430×89×385 (width/height/depth) mm

Net weight:

14.3kg

Operating temperature:

0 to 40