MP3/Bluetooth 500W Constant Voltage Power Amplifier V-500D
Category ：
Key Word ：
Digital Public Broadcasting System
# Product Description
1. High-contrast 128×64 Chinese dot matrix screen; built-in audio source information can be clearly displayed; equipped with an automatic screen saver function.
2. Built-in high-quality Bluetooth decoding chip featuring excellent sound quality, long transmission distance and fast connection speed.
3. Built-in high-quality MP3 decoding chip and USB interface with premium sound quality, compatible with multiple audio formats including MP3 and WAV.
4. Built-in high-sensitivity radio receiving decoding chip delivering clear radio reception, strong anti-interference capability and wide frequency band coverage.
5. The MP3 player supports playback in four different music styles with one-touch quick switching for easy operation.
6. The MP3 player offers multiple playback modes: shuffle, single-track loop and all-track loop.
7. Five built-in sound effect modes for the MP3 player to cater to the preferences of different user groups.
8. Built-in alarm tone output with priority forced cut-in function and muting adjustment function.
9. Built-in high-quality ringtone alert tone with priority forced cut-in function and muting adjustment function.
10. 2-channel RCA line inputs.
11. 2-channel microphone inputs; Microphone 1 supports priority forced cut-in and muting adjustment function.
12. Independent volume adjustment for each input channel.
13. Treble and bass adjustment function.
14. 2-channel RCA mixed outputs.
15. 100V and 70V constant voltage outputs as well as 4Ω–16Ω constant resistance output.
16. Output protection against short circuit, overcurrent and overload with LED warning indication.
17. Built-in protection against self-excitation, overheating and inrush current during power on/off, accompanied by LED warning indication.
18. LED warning for saturation distortion.
19. LED signal level indicator.
20. Built-in intelligent temperature detection system driving air cooling with a low-noise fan.
21. Built-in infrared frequency pairing receiver with one-touch remote control function.
# Technical Specifications
Power Supply: AC 220V/50Hz
Signal-to-Noise Ratio: Microphone: >68dB; Line Input: >82dB
Total Harmonic Distortion: <0.1% at 1kHz
Frequency Response: 60Hz–18kHz (±2dB)
Tone Adjustment: Bass: ±10dB at 100Hz; Treble: ±10dB at 10kHz
Radio Frequency Band: 76MHz–108MHz
Microphone Input Sensitivity & Impedance: 8mV/600Ω unbalanced
Line Input Sensitivity & Impedance: 250mV/10kΩ unbalanced
Line Output Sensitivity & Impedance: 1V/600Ω unbalanced
Muting Adjustment Range: 0–38dB
Output Power: 500W
Power Consumption: 10W–650W
Dimensions: 482 × 352 × 90mm
Net Weight: 16.5KG
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WEISHITE Audio Technology (Guangzhou) Co., Ltd
Address: 5th Floor, No. 11, Area A5, Lixin Road, Huimei New Village, Xintang Town, Zengcheng District, Guangzhou City
E-mail ：caoyaoyu@gztsaudio.com
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