Combined MP3/Bluetooth/Radio Amplifier FT-B2807PM

This 70W power amplifier features five input channels (three microphones, two lines) and built-in Bluetooth 5.0, USB flash drive socket, and FM radio. It offers multiple output options (100V, 70V constant voltage, and 4-16Ω constant resistance) and independent volume and tone control. The amplifier includes a temperature-controlled cooling fan, protection features, and a sleek aluminum design.
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Description
  • High-grade aluminum 2U black oxidized brushed panel, beautiful and elegant
  • The internal PCB adopts double-sided SMT patch circuit, and the performance is more stable and reliable
  • Five-way signal input (three-way microphone, two-way line.
  • Built-in Bluetooth 5.0 wireless audio reception, the receiving distance can reach 10 meters in an open space
  • With built-in USB flash drive socket and remote control, automatic playback function when powered on
  • Built-in FM radio and remote control function
  • Seven-digit fluorescent display, full-function touch button
  • With 100V, 70V constant voltage output and 4~16Ω constant resistance output
  • Total volume adjustment function, each input channel volume is adjusted independently
  • Treble and bass are adjusted independently
  • MIC1 automatic mute is equipped with an adjustment switch, the adjustable range is:0 to -30dB
  • Five-unit LED level display, dynamic and clear
  • With perfect output short circuit protection and over-temperature protection function
  • Cooling fan temperature control start
Parameter
Rated output power 70W
Output mode 4-16 ohms(Ω) fixed impedance output 70V(70 ohms(Ω)) 100V(143 ohms(Ω)) constant voltage output
Microphone input MIC1/MIC2/MIC3:600 ohms(Ω) 5-8 mV, unbalanced
Line input AUX1/AUX2:10k ohms(Ω) 150-470 mV, unbalanced
Auxiliary output 0.775V (0 dB)
Frequency response 60 Hz~ 15k Hz (± 3 dB)
Non-linear distortion THD <0.5% at 1kHz, 1/3 rated output power
Signal-to-noise ratio S/N Line:85 dB, MIC:>72 dB
Tone adjustment range BASS:100 Hz (± 10 dB), TREBLE:12k Hz (± 10 dB)
Silent suppression capability When MIC1 is input, MIC2, MIC3, AUX1, AUX2 signals are attenuated by 0~30 dB
Output adjustment rate < 3 dB, from no-signal static working state to full-load working state
Function control five volume adjustments, one high and low frequency adjustment, one silent adjustment, and one power switch
Cooling method DC 12V FAN forced air cooling method
Indicator light power supply:‘POWER’, level display:‘2, 4, 6, 8, 10’
Protection AC FUSE×4A AC FUSE×1, load short circuit, over temperature
Power cord (3×0.75 mm2)×1.5M (standard)
Power supply AC 220V ± 10% 50-60Hz
Power consumption 95W
Machine size 89(H)×483(W)×366(D)mm
Net weight 10.04kg
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FT-B2807PM
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