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Dynacord U240:1M: Compact Single-Channel 240W Mixer Amplifier
Dynacord U240:1M: Compact Single-Channel 240W Mixer Amplifier
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Dynacord U240:1M: Compact Single-Channel 240W Mixer Amplifier
The Dynacord U240:1M is a commercial-grade single-channel mixer amplifier engineered for small-to-medium installations where speech intelligibility and clear background music are paramount. Part of Dynacord's compact U Series, it packs a robust 240-watt Class D amplifier into a space-saving half-rack, 1 RU chassis. This small footprint makes it an exceptional utility choice for bars, restaurants, retail outlets, houses of worship, and corporate training rooms where equipment space is restricted.
Flexible Audio I/O and Advanced Voice Prioritisation
The U240:1M features a flexible four-input mixing matrix tailored for paging and media playback. Inputs 1 and 2 are balanced mic/line channels selectable via rear-panel DIP switches, complete with switchable plus 48V phantom power to accommodate high-quality condenser boundary or paging mics. Channel 1 features a contact-override trigger that initiates a built-in two-tone chime, serving as an attention-grabbing alert before announcements.
Channel 2 incorporates an adjustable VOX Ducking circuit. When an announcer speaks into the priority microphone, the mixer automatically attenuates the background music (routed through the line-level RCA Input 3 or Input 4) by a user-defined level between 0 dB and minus 45 dB. Once the speech finishes, the background audio smoothly ramps back up to its original level, providing a hands-free solution for venue staff.
Output Options and Dedicated Emergency Handling
The energy-efficient Class D topology delivers its full 240-watt capacity across multiple operational profiles. Installers can easily configure the output stage via DIP switches to match low-impedance configurations (4 Ohms or 8 Ohms) or constant-voltage distributed speaker systems (70V or 100V lines). For system safety and audio clarity, the amplifier includes a switchable 120 Hz high-pass filter to prevent transformer saturation in budget ceiling speakers, alongside a permanent 20 Hz low-cut filter to protect drivers from low-end rumble.
For public safety compliance, the unit includes a high-priority EMG emergency override input that accepts line-level or high-impedance 100V signals. When triggered by a fire alarm or central voice-evacuation system, all local media inputs are overridden to ensure critical instructions are delivered clearly across the zone. A Remote Power Off contact port is also provided, allowing the unit to be placed into a low-power standby mode (consuming just 1.25 watts) when the facility is locked up.
Installation and Rack Configuration Options
The physical format of the U Series is built around system modularity. The mixer amplifier is supplied with a comprehensive hardware accessory pack containing single rack-mounting ears, dual rack-mounting joiners, and under-counter brackets. Because it sits at exactly half a rack width, two units can be bolted side-by-side inside a standard 19-inch equipment rack, allowing contractors to effectively deliver a 480-watt or dual-zone footprint within a single rack unit slot.
Technical Specification Data
| Feature | Detail |
| Product Category | Commercial Single-Zone Mixer Amplifier |
| Amplifier Topology | Class D |
| Rated Output Power | 240 Watts RMS |
| Output Load Supported | 4 Ohms, 8 Ohms, 70V Line, 100V Line |
| Total Input Channels | 4 Input Channels + 1 EMG Emergency Override |
| Inputs 1 and 2 | Balanced Mic/Line (3-pin XLR / 5-pin Eurostyle) with plus 48V Phantom |
| Inputs 3 and 4 | Unbalanced Line Level (Stereo RCA summed to Mono) |
| Emergency Input (EMG) | Balanced Line Level / 100V Page Input (2-pin Eurostyle) |
| Audio Processing | VOX Ducking, Two-Tone Paging Chime, 120 Hz High-Pass Filter |
| Tone Adjustment | Bass shelving (plus or minus 12 dB at 100 Hz), Treble shelving (plus or minus 12 dB at 10 kHz) |
| Protection Systems | Audio limiter, high temperature, DC detection, short circuit, over current |
| Dimensions (W x H x D) | 218 mm x 44.2 mm x 217.7 mm (1 RU, half-rack width) |
| Net Weight | 1.85 kg |
See manufacturer website for specific product warranty information.
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Warranty
For the best performance and to ensure your new product works perfectly with your existing setup, we strongly recommend having a professional audiovisual technician install and configure your equipment.
Professional installation provides several key benefits:
Optimal Performance: An experienced technician will properly calibrate and fine-tune your new component to achieve the highest possible audio and video quality. They can also ensure seamless integration with your current system.
Trouble-Free Setup: AV equipment can be complex. A professional will handle the setup efficiently and safely, preventing any potential damage to the product or your space.
Peace of Mind: Knowing your equipment is installed correctly gives you confidence that it will function reliably for years to come.
Understanding Product Warranties
Your product is covered by a manufacturer's warranty.
This means that any warranty claims, service requests, or repairs must be handled directly through the manufacturer.
To ensure your warranty remains valid, it is crucial that you follow the manufacturer's warranty guidelines and instructions.
These guidelines often specify requirements for installation, use, and maintenance. Failure to follow them could void your warranty.
You can find the specific warranty information and contact details for your product in the documentation on the manufacturer's website.
It is always a good idea to register your product with the manufacturer after purchase, as this can simplify the process if you ever need to make a warranty claim.
If you have any questions about your new equipment or need a recommendation for a professional installer, please don't hesitate to contact us. We're here to help you get the most out of your purchase.
