Multimedia teaching amplifier WRS-2150-LBT - a product supplier providing customized audio and video system solutions

Multimedia Classroom

A recording classroom is a classroom equipped with a recording system, or a classroom used for on-site recording and broadcasting of classroom teaching or lecture materials. A recorded classroom is a place where everything in the classroom can be recorded, including the actions of both learners and instructors. With the development of the national "boutique curriculum" construction project and the continuous updating and development of new technologies such as computer multimedia techn

PRODUCT

1. Output power stereo 8 Ω 150W+150W

2. Output power stereo 4 Ω 200W+200W

3. Frequency response: 10Hz-50KHz-1.5dB

4. Input sensitivity 0.775V

5. Maximum input level 21dBV/9V

6. Input impedance 20K

7. Signal to noise ratio>85dB

8. Channel separation degree>70dB

9. Damping coefficient>150

10. Conversion rate 30V/S

11. Short circuit protection, overvoltage and overcurrent protection, soft start, amplitude limiting, amplifier tube overheating protection

12. Display power light (100) protection light (yellow) limit light (red) bridge light (green) single tone parallel channel output (green)

13. Cooling continuously variable speed

14. Panel control for left and right channel volume control, power switch control

15. Rear panel control stereo/bridge/parallel mono/conversion switch input sensitivity conversion switch suspension/ground switch

16. Input and output connections: XLR balanced input 6.35 balanced input 5 bound outputs: Nl4 professional speaker socket output

17. 8 ohm power consumption power<200W

18. Power supply AC 115V/230V/50-60Hz

1. Unique DCP/MOVE digital processing and transmission technology, no matter how many devices are undisturbed, all digital transmission overcomes the attenuation problem of long-distance transmission. The transmission distance of six core wire can reach 250 meters, and the transmission distance of network cable can reach 150 meters;

2. Long distance transmission has no impact on sound quality and can achieve CD level sound quality;

3. Built in environmental noise canceller (AEC), which can effectively eliminate local noise;

4. Built in digital equalization circuit, which can significantly improve the sound pressure level of the venue;

5. Built in adaptive feedback suppressor (AFC), which can effectively prevent whistling;

6. The wireless conference host interacts with voice and data through wireless transceivers, using 2.4G all digital frequency hopping (DSSS) modulation communication technology and ISM frequency band to ensure that the audio delay is less than 5.5ms;

7. The connection method adopts a 6-core DIN shielded cable or a 2-meter Category 6 Ethernet cable, which can effectively prevent electromagnetic interference to the line;

8. Optional functions (the system host supports dual machine hot backup, with strong system stability, suitable for large conference center applications);

9. Adopting ID addressing, customizable numbering, automatically detecting the online list of hosts and units upon startup, and real-time monitoring of system operation;

10. Pioneering a 4.3-inch full-color touch screen with bilingual information display in Chinese and English, with dual functions of system navigation display and centralized control; (At the request of the bidder, samples can be provided for on-site demonstration during bidding)

11. Built in voting motherboard with data management functions for check-in, voting, election, scoring, and response;