Dynacord U240:1M Single-Channel 240W Mixer Amplifier

About: Dynacord U240:1M Single-Channel 240W Mixer Amplifier

Introducing the U240:1M, a 240 W mixer amplifier designed to cater to the demands of small to mediumsized installations, where paramount considerations include quality, performance, and unwavering reliability. This mixer 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 U240:1M 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.

• 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

Single-channel mixer amplifiers for commercial installations

• Four single-channel mixer amplifiers
• Reliable, extensively tested high-quality electronics engineered by Dynacord for background music and paging, ideally suited for smaller applications in hospitality venues, retail and office spaces, and more
• Budget-friendly, Class-D amplification in an ultra-compact form factor with straightforward installation, flexible system drive and mounting options

U Series mixer amplifiers consist of four models with 30, 60, 120 and 240 watts of output power. The U Series can be deployed in standalone applications as well as being seamlessly integrated into existing installations. U Series mixer amplifiers provide comfortable front access for main gain, channel levels and tone adjustments. Two mic/line and two aux inputs are available to connect external devices such as microphones, a paging station or music players. The models can drive high-Z or low-Z speaker lines, feature phantom power for the microphone inputs and a switchable high-pass filter at 120 Hz. Also included are an emergency override input for integration with a PA/VA system, a chime when used with a paging station and VOX ducking. The configuration is performed easily with DIP switches that are located on the rear of the devices; a contact closure port for remote power on/off functionality is also available.

When combined with the EVID commercial speakers from Dynacord's sibling brand Electro-Voice, the U Series facilitates exceptionally cost-effective and high-quality audio installations ensuring enhanced ambiance and intelligibility to bring an elevated audio experience in every room.

Straightforward installation and ultra-compact design

The installation process itself is easy and does not require advanced technical skills. At just a single rack unit high and half a rack width wide, U Series require minimal space and provide various installation options, accommodating rack mount, table-top or under-table installation. The included brackets facilitate single or dual rack-mount options as well as unobtrusive installation wherever needed, such as under counters.

Uncompromising reliability

Dynacord’s world-class reputation is based on its commitment to adhering to the highest product quality standards to deliver robustness and reliability. That’s why all Dynacord electronics undergo extensive testing at Dynacord’s Reliability Test Center (RTC) in Straubing, Germany, where all electronics must endure rigorous testing to ensure the ability to withstand extreme thermal conditions, physical stress tests, and long-term heavy use when driving speakers at maximum loads. As a result, U Series amplifiers are equipped with a sophisticated protection package to ensure flawless operation -- even under challenging conditions. On board are an overload and short-circuit protection and a limiter to prevent accidental overdriving.

Dynacord’s U Series – four ultra-compact, cost-effective mixer amplifier models for smaller applications, featuring straightforward setup and flexible installation options for enhanced ambiance and communications in commercial spaces.

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.
• Phantom power - Facilitates microphone operation with power supplied to both microphone inputs.
• VOX Ducking - Prioritizes voice input, enhancing clarity during announcements or speeches.
• 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.
• Accessible front controls - Conveniently adjust output gain, input gain per channel, and bass and treble settings directly from the front panel for effortless customization.

Specifications

• Electrical
  • Mains power supply
    • Voltage: 100 VAC - 240 VAC ±10%, 50/60 Hz
  • Power consumption
    • Standby (Remote OFF active): 1.25 W
    • Idle mode LoZ amp mode (4 Ω / 8 Ω): 10 W / 12 W
    • Idle mode HiZ amp mode (70 V / 100 V): 10 W / 14 W
    • 1/8 rated output power: 55 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 — 15 kHz
    • Any input to LINE output: <10 Hz — 60 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 / priority trigger / Vox input active
    • Power (Green): Power on condition
  • DIP switches: EMG (HiZ/Line level), Two-tone Chime (ON/OFF), HPF (120 Hz), VOX (ON/OFF), Phantom power (+48 V/OFF) Output (HiZ/LoZ), 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: 2 mic/line, 2 aux, EMG (priority input)
  • Sensitivity with all level controls in max. position
    • MIC / Call station: -68 dBu (300 µV)
    • AUX (only L or R): -11.8 dBu (200 mV)
    • AUX (Stereo) (L and R): -17.8 dBu (100 mV)
  • Maximum input level
    • LINE / MIC: +7.5 dBu
    • AUX (L or R): +22 dBu
    • AUX (L and R): +16 dBu
    • EMG (EMG line): +11.5 dBu
    • EMG (HiZ 100 V): +44.5 dBu
  • Input impedances
    • MIC / Call station: 10 kΩ
    • AUX: 4.7 kΩ
    • EMG (Line): >15 kΩ
    • EMG (HiZ): >470 kΩ
  • LINE / MIC1 input
    • Type: LINE / MIC, call station, contact override with chime
    • Connector: 3-pin XLR, balanced / 5-pin Eurostyle, balanced (3 pin for input, 2 pin for trigger)
    • Dynamic range: 60 dB (Mic gain min — max)
    • Equivalent input noise: <-115 dBu
    • Phantom power supply, switchable: 48 V DC
  • LINE / MIC2 input
    • 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 via MIC2 level control
    • Dynamic range: 60 dB (Mic gain min — max)
    • Equivalent input noise: <-115 dBu
    • Phantom power supply, switchable: 48 V DC
  • AUX1 input
    • Type: Line
    • Connector: RCA (cinch), stereo converted to mono, unbalanced
  • AUX2 input
    • Type: Line
    • Connector: RCA (cinch), stereo converted to mono, unbalanced
  • EMG Input
    • Type: Line; 100 V
    • Connector: 2-pin, balanced
• 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
  • 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
  • Signal to noise ratio (A-weighted, ref. to rated output power): >100 dB
• 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 8.57 in (44.2 x 218 x 217.7 mm)
    • Weight 
      • With accessories: 5.29 lb (2.4 kg)
      • Without accessories: 4.18 lb (1.9 kg)

What's Included

• 1x Dynacord U240:1M
• 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