Dynacord U240:1M 240W 1-Channel Mixer Amplifier for Small or Medium Sized Installations

U240:1M-US - Overview

• Features:

  • Versatile inputs: 4 inputs, 2 mic/line options with phantom power support
  • Full power output supporting 4Ω, 8Ω, 70 V and 100 V
  • EMG override input, ensuring critical messages are heard clearly
  • Contact override with 2-tone chime for attention-grabbing alerts
  • 70 Hz and 120 Hz high-pass filters to customize audio output and eliminate unwanted low-frequency noise
  • Space-saving compact ½ rack design, providing versatility without compromising performance
  • VOX Ducking that automatically adjusts background music volume for clear voice communication
  • Remote activation of standby mode with Remote OFF (Stand by), enhancing energy efficiency
   

• Specifications:

  • Electrical - Main Power Supply
  • Voltage: 100 VAC - 240 VAC, 50/60 Hz
  • Power: 800 VA
  • Consumption:
    - Standby (Remote OFF active) 1.25 W
    - Idle Mode 11W/12W
  • Remote Power (ON/OFF Stand by): 2-pin, Eurostyle, contact closure
    
    Performance
  • Frequency Response (-3dB ref. 1kHz):
    - Any Input to Output: <10 Hz - 22 kHz
    - Any Input to LINE Output: <10 Hz - 65 kHz
    - Distortion: <1% @rated output power, 1 kHz
    - Output Stage Topology: Class D
  • Equalization:
    - Bass Shelving: ±12 dB/150 Hz - 3 dB (100 Hz)
    - Treble Shelving: ±12 dB/5 kHz - 3 dB (10 kHz)
  • Filter:
    - LO-CUT Permanently: f=20 Hz, 12 dB/oct
    - LO-CUT Switchable, can be activated: f=120 Hz, 12 dB/oct
    
    General
  • Front Status LEDs:
    - Protect (Red): Protection, short circuit
    - Peak (Red): 1 dB before clip (input and output)
    - Signal (Green): Input and output signal
    - Call (Green): EMG / priority trigger / Vox input active
    - Power (Green): Power on condition
    - DIP Switches: EMG (HiZ/LowZ), Two-tone Chime (ON/OFF), HPF (120 Hz), VOX (ON/OFF), Phantom power (+48 V/OFF) Output (HiZ/LowZ), Amp mode (70 V/100 V; 4Ω/8Ω)
  • Protections:
    - Amplifier: Audio limiters, high temperature, DC, HF, short circuit, over current protection
    - Switching Mode Power Supply (μPC controlled): Mains over/under voltage protection, inrush current limiter, mains over current, high temperature
    - Remote Power OFF: Contact closure
    
    Inputs
  • Number of Inputs:
    - 2x MIC/Line
    - 2x AUX (+EMG)
  • Sentitivity with All Level Controls in Max Position:
    - MIC/Call Station: -68 dBu (300 μV)
    - AUX (only L or R): -22 dBu (60 mV)
    - AUX (Stereo) (L and R): -28 dBu (30 mV)
  • Maximum Input Level:
    - MIC/Call Station: +8 dBu
  • Input Impedances:
    - MIC/Call Station: 10 kΩ
    - AUX: 4.7 kΩ
    - EMG (Line): >15 kΩ
    - EMG (HiZ): >470 kΩ
    - LINE (L and R): 75Ω
    - Noise, MIC input to output, Aweighted, (HiZ 100 V): -60 dBu
  • Input 1:
    - Type: Mic/Line, contact override with chime
    - Connector: 3-pin XLR, balanced/5-pin Eurostyle, balanced (3-pin for input, 2-pin for trigger)
    - Dynamic Range: 61 dB (Mic gain min - max)
    - S/N (A-weighted): ≥98 dB
    - Phantom Power Supply, Switchable: 48 V DC
  • Input 2:
    - Type: MIC/Line, VOX ducker override
    - Connector: 3-pin XLR, balanced
    - VOX Ducking: Ducking control 0 dB - -45 dB
    - VOX Threshold: -60dBu - +8 dBu, adjustable
    - Dynamic Range: 61 dB (Mic gain min - max)
    - S/N (A-weighted): ≥98 dB
    - Phantom Power Supply, Switchable: 48 V DC
  • Input 3:
    - Type: Line
    - Connector: RCA (chinch), stereo converted to mono, unbalanced
    - S/N (A-weighted): ≥98 dB
  • Input 4:
    - Type: Line
    - Connector: RCA (chinch), stereo converted to mono, unbalanced
    - S/N (A-weighted): ≥98 dB
  • EMG Input:
    - Type: Line; 100 V
    - Connector: 2-pin, balanced
    - S/N (A-weighted): ≥98 dB
    
    Loudspeaker Output:
  • Connector: 4-pin Eurostyle (2-pin for LowZ, 2-pin for HiZ)
  • Rated Output Power: 240 W
  • Max Output Voltage, 1 kHz: 4Ω 8Ω 70 V 100 V
  • THD=0.5%, no load: 31 V_RMS 45 V_RMS
    
    Mechanical - Enclosure
  • IEC Protection Class: Class I (grounded)
  • Dimensions (HxWxD), without acessories: 1.74" x 8.6" x 8.57" (44.2mm x 218mm x 217.7mm)
  • Color in RAL: RAL 9017 Traffic black
  • Net Weight (without accessories): 4.07lbs (1.85kg)
  • Net Weight (with accessories): 5.09lbs (2.31kg)
  • Shipping Weight: 5.88lbs (2.67kg)
  • Mounting: Stand-alone; 19" rack; rack side-byside; half 19" rack; table-top; undertable
    
    Environmental
  • Cooling Concept: Four-stage-fans (Off/Slow/Medium/Fast)
  • Operating Temperature: 23°F - 113°F (-5°C - 45°C)
  • Storage Temperature: -40°F - 158°F (-40°C - 70°C)