VA-6504 BC1 Microphone PA System


  • * Adopt a microphone with super cardioid polar pattern, which supports 48Khz sampling rate to ensure high-quality sound;
  • * Based on 3-layer network transmission technology, compatible with standard network protocols, support 48Khz/16-bit across-network audio transmission;
  • * Support paging broadcast, support scheduling through system management software, support broadcasting calling to designated zones;
  • * Support full duplex two-way intercom function to realize hands-free call;
  • * Built-in echo cancellation function, and network echo suppression;
  • * Adopt independently developed data transmission technology, support extremely low end-to-end transmission delay, and realize zero-delay experience;
  • * Built-in 2W monitoring speaker, with clear and powerful sound.
  • * Support the power supply mode of 12V DC power adapter;
  • * Support remote firmware upgrades through the LAN without disassembling the machine, which reduces the work intensity of maintenance personnel.


Network interfaceStandard RJ45
Communication protocolCompatible with DHCP, TCP, UDP, ICMP, IGMP, ARP and other standard network protocols
Transmission rate100Mbps
MIC sensitivity-34 ± 2dB (0dB=1V/Pa, at 1KHz)
MicrophoneCardioid electret condenser microphone
Built-in speaker impedance and rated power4Ω, 2W
THDTHD + N ≤ 1%
Frequency response317Hz ~ 16KHz, +1/-3dB
SNRMicrophone: ≥ 65dB (A)
Working temperature-10 ℃ ~ + 55 ℃
Working humidity20% ~ 80% relative humidity, no condensation
Total power consumption ≤ 10 W
Standard input DC power supplyDC12V/1A
Size 100×113×36 mm
Net weight0.7 kg
Installation methodDesktop