Dynacord U240:1 Single-Channel 120W Power Amplifier

About: Dynacord U240:1 Single-Channel 120W Power Amplifier

Introducing the U240:1, a 240 W power amplifier designed to cater to the demands of small to mediumsized installations, where paramount considerations include quality, performance, and unwavering reliability. This amplifier is ideal for background music and crystal-clear voice announcement applications, making it a perfect fit for diverse environments such as bars, restaurants, retail outlets, educational institutions, houses of worship, museums, galleries, transport hubs, and conference centers. Thanks to its compact size, standing just one rack unit high and half rack wide, the U240:1 presents numerous installation possibilities, even in spaceconstrained settings. Included brackets facilitate both single and dual rack-mount configurations, while desktop and under-counter installations are equally viable. When rack-mounted side by side, two amplifiers can seamlessly inhabit a single rack unit, optimizing space utilization and effectively doubling both channel count and output power.

• 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
• 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
• Remote activation of standby mode with Remote OFF (Stand by), enhancing energy efficiency

Functions

• Advanced amplification technology: Incorporates class-D amplification topology for superior energy efficiency, product quality, and reliability compared to traditional linear power supply and class-AB amplification.
• Compact form factor: Half rack, 1U enclosure ensures space-saving installation without compromising performance.
• Full power at low and high impedance: Supports 70V, 100V, 4Ω, and 8Ω speaker systems, offering versatility in system design.
• Remote power: Enables remote power ON/OFF functionality via contact closure, enhancing operational convenience.
• Bass and treble adjustment: Allows fine-tuning of audio output with dedicated bass and treble adjustment controls.
• High-pass filter: Available 120 Hz high-pass filters to tailor audio output according to application requirements.
• Flexible mounting options: Offers versatile mounting possibilities including rack mount, side-by-side rack mount, table-top, or under-table mounting, facilitated by included brackets and accessories.
• Emergency input: Features 100 V and Line In emergency input with level selection, ensuring critical messages are delivered clearly.
• Protection: Equipped with overload and short circuit protection, along with a limiter to safeguard both the amplifier and loudspeaker against accidental overdriving. A temperature-controlled fan ensures optimal cooling without generating acoustic noise at lower output levels.
• Protected control: Front panel devoid of controls; set it and forget it with gain, bass, and treble controls conveniently located on the rear panel for added security and ease of use.

Specifications

• Electrical
  • Mains power supply
    • Voltage: 100 VAC - 240 VAC, 50/60 Hz
  • Power consumption
    • Standby (Remote OFF active): 1.25 W
    • Idle mode LoZ amp mode (4 Ω / 8 Ω): 10 W / 11 W
    • Idle mode HiZ amp mode (70 V / 100 V): 10 W / 13 W
    • 1/8 rated output power: 50 W
  • Remote power (ON/OFF Standby): 2-pin, Eurostyle, contact closure
• Performance
  • Frequency response, -3 dB ref. 1 kHz
    • Any input to output: <20 Hz — 20 kHz
    • EMG input to output: <20 Hz — 18 kHz
  • Distortion: <0.5% @rated output power, 1 kHz
  • Output stage topology: Class D
  • Equalization
    • Bass shelving: ±12 dB / 100 Hz
    • Treble shelving: ±12 dB / 10 kHz
  • Filter
    • LO-CUT permanently: f=20 Hz, 12 dB/oct.
    • HI-PASS (HPF) switchable, can be activated: f=120 Hz, 12 dB/oct.
• General
  • Front status LEDs
    • Protect (Red): Protection
    • Peak (Red): 1 dB before clip (input and output)
    • Signal (Green): Input and output signal
    • Call (Green): EMG
    • Power (Green): Power on condition
  • DIP switches: EMG (HiZ/Line level), HPF (120 Hz), 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: Mains over/under voltage protection, inrush current limiter, mains over current, high temperature
    • Remote power OFF: Contact closure
• Inputs
  • Number of inputs: 1 mic/line, 1 aux, EMG (priority input)
  • Input 1
    • Type: Balanced line
    • Connector: 3-pin Eurostyle
    • Sensitivity: 500 mV
    • Impedance: 10 kΩ
    • Maximum input level: +12 dBu
  • Input 2
    • Type: Unbalanced line
    • Connector: RCA (chinch), stereo converted to mono
    • Sensitivity: 250 mV (R and L)
    • Impedance: 4.7 kΩ
    • Maximum input level: +16 dBu (R and L)
  • EMG Input
    • Type: Line; 100 V
    • Connector: 2-pin, balanced
    • Impedance
      • EMG (line): >15 kΩ
      • EMG (HiZ): >470 kΩ
    • Maximum input level
      • EMG (line): +11.5 dBu
      • EMG (HiZ): +44.5 dBu
• Loudspeaker output
  • Connector: 4-pin Eurostyle (2 pin for LoZ, 2 pin for HiZ)
  • Output power according IHF-A-202 (Dynamic-Headroom, burst 1 kHz / 20 ms on / 480 ms off / low level -20 dB): 240 W
  • Signal to noise ratio (A-weighted, ref. to rated output power): >100 dB
  • Max output voltage, 1 kHz, THD=0.5%, no load
    • 4 Ω, 8 Ω, 70 V, 100 V
    • 31 VRMS, 45 VRMS, 71 VRMS, 102 VRMS
• Mechanical
  • ​Environmental
    • Cooling concept: Four-stage-fans (Off / Slow / Medium / Fast)
    • Operating temperature: -5°C — 45°C (23°F — 113°F)
    • Storage temperature: -40°C — 70°C (-40°F —158°F)
  • ​Enclosure
    • IEC protection class: Class I (grounded)
    • Color: RAL 9017 Traffic black
    • Mounting
      • Stand-alone
      • 19" rack
      • Rack side-by-side
      • Half 19" rack
      • Table-top
      • Under-table
    • Dimensions (HxWxD, without accessories): 1.74 x 8.6 x 8.26 in (44.2 x 218 x 210 mm)
    • Weight 
      • With accessories: 5.07 lb (2.3 kg)
      • Without accessories: 3.96 lb (1.8 kg)

What's Included

• 1x Dynacord U240:1
• 1x IEC Power Cord
• 1x Euroblock connector 2-pole for Remote power OFF
• 1x Euroblock connector 2-pole for EMG input
• 1x Euroblock connector 4-pole for outputs LoZ and HiZ
• 1x Euroblock connector 5-pole for MIC1 / PTT input
• 4x Rubber feet
• 1x M3 screw
• 2x Short rack ears
• 1x Long rack ear
• 1x Connection plate
• 1x Quick installation guide
• 1 Safety information