amplifier designed for background music and voice announcement systems in small to medium commercial installations. Its compact half-rack, 1RU design, versatile input section, and support for 4-ohm, 8-ohm, 70V, and 100V speaker systems make it useful for bars, restaurants, retail spaces, schools, houses of worship, museums, galleries, transport hubs, and conference centers.
Dynacord U240:1M Competitive Differences
- 240W output supports 4-ohm, 8-ohm, 70V, and 100V speaker systems from one compact amplifier
- VOX ducking, EMG override, and contact override with 2-tone chime support clear priority announcements
Dynacord U240:1M Description
The Dynacord U240:1M combines a compact mixer section with a 240W Class D amplifier for commercial audio systems that need reliable background music and voice announcement capability. Its four-input design includes two mic/line inputs with switchable 48V phantom power, plus two stereo RCA line inputs summed to mono.
Priority and paging features make the U240:1M well suited for installed communication systems. Input 1 supports contact override with chime, Input 2 offers VOX ducking with adjustable threshold and ducking depth, and the EMG input helps ensure emergency or priority messages are heard clearly.
Output flexibility allows the amplifier to drive low-impedance 4-ohm or 8-ohm speaker loads, as well as 70V or 100V distributed systems. Switchable filtering, bass and treble EQ, status LEDs, and protection circuitry help simplify setup while supporting dependable daily operation.
The half-rack chassis saves space in tight installations and can be used stand-alone, table-top, under-table, half-rack, full rack, or side-by-side with another unit in a single rack space using the included mounting accessories.
U240:1M Features
- 240W single-channel mixer amplifier
- Compact 1RU, half-rack design
- Four inputs: 2 mic/line inputs and 2 auxiliary line inputs
- Switchable 48V phantom power on mic/line inputs
- Supports 4-ohm, 8-ohm, 70V, and 100V speaker outputs
- Class D output stage topology
- EMG override input for priority messaging
- Contact override with 2-tone chime
- VOX ducking with adjustable threshold and ducking depth
- Switchable 120 Hz high-pass filter
- Permanent 20 Hz low-cut filter
- Bass and treble shelving EQ
- Remote OFF standby activation via contact closure
- Front panel status LEDs for protect, peak, signal, call, and power
- Stand-alone, rack, side-by-side rack, table-top, and under-table mounting options
U240:1M Specifications
- Amplifier Type: 1-Channel Mixer Amplifier
- Rated Output Power: 240W
- Output Support: 4 Ohms / 8 Ohms / 70V / 100V
- Output Stage Topology: Class D
- Mains Power Supply: 100–240 VAC, 50/60 Hz
- Power Requirement: 800 VA
- Standby Consumption: 1.25W with Remote OFF Active
- Idle Consumption: 11W / 12W
- Frequency Response, Input to Output: <10 Hz – 22 kHz (-3 dB ref. 1 kHz)
- Frequency Response, Input to Line Output: <10 Hz – 65 kHz (-3 dB ref. 1 kHz)
- Distortion: <1% at Rated Output Power, 1 kHz
- Bass EQ: ±12 dB at 150 Hz
- Treble EQ: ±12 dB at 5 kHz
- Permanent Low-Cut Filter: 20 Hz, 12 dB/octave
- Switchable High-Pass Filter: 120 Hz, 12 dB/octave
- Inputs: 2 Mic/Line, 2 Aux, EMG
- Input 1 Connector: 3-Pin XLR Balanced / 5-Pin Eurostyle Balanced with Trigger
- Input 2 Connector: 3-Pin XLR Balanced
- Aux Inputs: RCA Stereo Summed to Mono
- EMG Input Connector: 2-Pin Balanced
- Loudspeaker Output Connector: 4-Pin Eurostyle
- Phantom Power: 48V DC, Switchable
- VOX Ducking Range: 0 dB to -45 dB
- VOX Threshold: -60 dBu to +8 dBu, Adjustable
- Remote Power: 2-Pin Eurostyle Contact Closure
- Protection: Audio Limiters, High Temperature, DC, HF, Short Circuit, Overcurrent, Mains Over/Under Voltage, Inrush Current Limiter
- Dimensions: 1.74 x 8.6 x 8.57 in (44.2 x 218 x 217.7 mm)
- Color: RAL 9017 Traffic Black
- Net Weight Without Accessories: 4.07 lb (1.85 kg)
- Net Weight With Accessories: 5.09 lb (2.31 kg)
- Shipping Weight: 5.88 lb (2.67 kg)
- Operating Temperature: 23°F – 113°F (-5°C – 45°C)
- Storage Temperature: -40°F – 158°F (-40°C – 70°C)
What's In The Box
- Dynacord U240:1M Mixer Amplifier
- Mounting Brackets
