RDL EZ-MCP1 Microphone Compressor

Radio Design Labs' EZ-MCP1 is an in-line microphone compressor that produces consistent audio levels despite wide variations (up to 30 dB) from the microphone. It is installed between a dynamic or condenser microphone and a mic-level mixer or amplifier input. The only setup required is a front-panel level trimmer that is adjusted during normal speech until the compression LED just begins to flash. A rear-panel output level trimmer is provided although it is typically left in the normal default position. Phantom voltage (24 V) is automatically switched on when the EZ-MCP1 output is connected to a mic jack that provides phantom voltage. The EZ-MCP1 improves sound quality and intelligibility by producing consistent audio levels and controlling overloads that produce distortion and clipping. It is used for recording, paging and public address in houses of worship, restaurants, clubs, meeting rooms, educational facilities, conference rooms and commercial sound systems.

Radio Design Labs EZ-MCP1 Features:

• Produces Consistent Levels from Any Microphone
• Installs Between Microphone and Mixer/Amplifier
• Improves Intelligibility with Fast Automatic Level Control
• Controls Overloads that Cause Distortion and Clipping
• Front-Panel Set-Up Trimmer with LED Indicator
• Automatic Phantom Voltage Switching with LED
• XLR Input and Output
• Gold-Plated Connector Contacts
• Simple Setup using LED Indicator
• Exceptional Level Control Range (30 dB)

Radio Design Labs EZ-MCP1 Specifications:

• Input: Mic level, -60 to -30 dBu nominal
• Input Impedance: >1k Ohms balanced
• Input / Output Connectors: XLR
• Level Adjustment: Single turn audio taper (front panel)
• Minimum Input Level:
  • 60 dBu (to cross compressor threshold)@ max gain
  • 30 dBu (to cross compressor threshold) @ min gain
• Maximum Input Level: 0 dBu @ min gain
• Output: Mic level, -55 dBu to -30 dBu, adjustable; NORMAL: -45 dBu
• Output Impedance: 150 Ohm nominal, balanced
• Output Level Adjustment: Single turn audio taper (rear panel)
• Frequency Response: 50 Hz - 20 kHz (+/- 0.5 dB)
• THD+N: < 0.5% (50 Hz - 20 kHz, at compressor threshold)
• Compression: 30 dB, automatic adjusting attack and release times
• Noise: < -63 dB (below normal output level at comp. threshold, -56dBu input)
• CMRR: > 55 dB (50 Hz to 120 Hz)
• Phantom: 24 V (IEC 1938: 1996-12), present when phantom detected at module output
• Indicators:
  • Red LED: Compression - Indicates compressor activity
  • Green LED: Phantom - Indicates phantom voltage present
  • Blue LED: Power
• 24V DC power supply current: 55 mA (idle), 60 mA (max.), 70 mA (max. with phantom)
• Power Supply Input Voltage: 100 to 240V AC
• Warranty: 3 Years; contact RDL technical support department for assistance
• Case Dimensions: 2.9" W x 5" D
• Mounting Size: 1/6 rack width