CMX PA-400PR 10-Input Multi-Function Pre-Amplifier

42,500.00৳ 

Key Features:

  • 10-input multi-function pre-amplifier for commercial PA systems
  • Standard 19-inch rack-mount design
  • 5 microphone inputs and 3 line-level audio inputs
  • Dedicated emergency and short-circuit alarm inputs
  • 4 RCA outputs for connection to up to four power amplifiers
  • Independent volume adjustment for each input channel
  • Dedicated bass and treble tone controls
  • Microphone reverb adjustment
  • MIC4 and MIC5 support 48V phantom power
  • Three-level priority control for emergency paging
  • EMC emergency input has highest priority
  • Other channels attenuate to -50dB when priority channels are active
  • Universal AC 100–240V, 50/60Hz power input
Specification Details
Brand CMX
Model PA-400PR
Product Type 10-Input Multi-Function Pre-Amplifier
Microphone Input MIC1–3 600Ω, 10mV, Unbalanced
Microphone Input MIC4/MIC5 600Ω, 10mV, Unbalanced
Phantom Power MIC4/MIC5, 48V
Line Input AUX1–3, 10kΩ, 300mV, Unbalanced
EMC Emergency Input 10kΩ, 500mV, Unbalanced
Audio Output 0.775V (0dB)
Frequency Response 20Hz–20kHz (±3dB)
Bass Adjustment 100Hz (±10dB)
Treble Adjustment 10kHz (±10dB)
THD <0.5%
Signal-to-Noise Ratio Line: >80dB; Microphone: >65dB
Priority EMC > MIC1 & ALARM > Other
Power Consumption <10W
Power Input AC 100–240V, 50/60Hz
Power Cord 3 × 0.5mm² × 1.5m
Unit Dimensions 480(W) × 200(D) × 45(H) mm
Package Dimensions 515(W) × 300(D) × 100(H) mm
Net Weight 2.2 kg
Gross Weight 2.8 kg

The CMX PA-400PR 10-Input Multi-Function Pre-Amplifier is designed for commercial PA systems that need centralized control of multiple microphones, audio sources and power amplifiers. It is a practical choice for schools, offices, factories, shopping malls, hotels, religious facilities and other Bangladesh projects where paging, announcements and background audio must be managed reliably from one rack-mounted unit.

The PA-400PR provides 10 audio inputs, including five microphone inputs, three line inputs, one emergency input and one short-circuit alarm input. Four RCA audio outputs allow the pre-amplifier to feed up to four power amplifiers simultaneously, making it suitable for larger or multi-amplifier PA installations.

Each input channel has independent volume adjustment, while dedicated bass and treble controls help optimize overall sound quality. MIC4 and MIC5 support 48V phantom power, providing additional flexibility for compatible microphones, and microphone reverb adjustment is also available.

For emergency paging, the system includes a structured priority function where the EMC emergency input receives highest priority, followed by MIC1 and alarm inputs. With universal AC 100–240V power support and standard 19-inch rack installation, the CMX PA-400PR is a flexible control solution for professional commercial PA projects.

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