{"product_id":"dynacord-u240-1m-us-240w-single-channel-mixer-amplifier","title":"Dynacord U240:1M-US – 240W Single-Channel Mixer Amplifier","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Dynacord U240:1M is a 240 W mixer amplifier for medium commercial audio systems that combine background music with clear voice paging. As a 70V mixer amplifier supporting 70 V, 100 V, 4 ohm, and 8 ohm loads, it is the highest-output commercial background music amplifier in the U Series mixer line, suited to larger retail floors, houses of worship, and multi-purpose rooms. Its four-input mixer, EMG priority override, and half-rack chassis let integrators deploy a complete paging-and-music head end without a separate mixing console.\u003c\/p\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe U240:1M combines a four-input mixer with a 240 W Class-D power amplifier in a half-rack 1U enclosure, delivering source mixing and high output for distributed audio systems from a single device. Two mic\/line inputs with switchable 48 V phantom power accept microphones or line sources, and two stereo aux inputs (summed to mono) handle background music players. The EMG priority input takes line-level or 100 V signals with selectable level so all-call and emergency messages override program audio. MIC1 offers a call-station interface with contact-closure triggering and a configurable two-tone chime, while VOX ducking on MIC2 automatically lowers music under live speech for intelligible announcements. DIP-selectable output for 4 ohm, 8 ohm, 70 V, and 100 V lets the same amplifier drive longer high-Z distributed speaker runs or low-Z surface speakers, and a four-stage temperature-controlled fan keeps the unit quiet at low output and cool under sustained load. Built for continuous commercial deployment, this Dynacord U Series amplifier offers remote power standby and front-panel gain, bass, and treble adjustment for fast commissioning. Browse the full \u003ca href=\"https:\/\/creationnetworks.net\/collections\/dynacord\"\u003eDynacord collection\u003c\/a\u003e at Creation Networks, or for larger DSP-equipped install amplifiers see the \u003ca href=\"https:\/\/creationnetworks.net\/products\/dynacord-c1300fdi-dsp-power-amplifier\"\u003eDynacord C1300FDi DSP power amplifier\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Input Mixer Amplifier\u003c\/strong\u003e — Two mic\/line and two aux inputs combine microphones and music sources in one unit, removing the need for an external mixer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e240 W of Output\u003c\/strong\u003e — The highest-power U Series mixer amplifier drives larger zones and longer 70 V\/100 V speaker runs from a half-rack chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70 V \/ 100 V and Low-Z Output\u003c\/strong\u003e — Selectable 4 ohm, 8 ohm, 70 V, and 100 V operation supports both distributed high-Z and direct low-Z loudspeaker systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMG Priority Override\u003c\/strong\u003e — A dedicated emergency input accepts line-level or 100 V signals with level selection so critical messages take precedence over program audio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCall-Station Interface with Two-Tone Chime\u003c\/strong\u003e — MIC1 supports contact-closure paging with a configurable attention chime for clear all-call announcements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVOX Ducking\u003c\/strong\u003e — Automatic ducking lowers background music under live speech for intelligible voice communication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass-D Topology\u003c\/strong\u003e — Class-D amplification improves energy efficiency and reduces heat versus traditional linear and Class-AB designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Stage Cooling\u003c\/strong\u003e — A temperature-controlled four-stage fan keeps the amplifier quiet at low levels and stable under sustained load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitchable 48 V Phantom Power\u003c\/strong\u003e — Both mic inputs supply phantom power for condenser microphones and powered call stations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHalf-Rack 1U Chassis\u003c\/strong\u003e — Included brackets allow single, side-by-side rack, table-top, or under-counter mounting, with two units fitting one rack space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Power Standby\u003c\/strong\u003e — Contact-closure remote power off reduces standby consumption to 1.25 W for energy-conscious installations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAuditorium\u003c\/li\u003e\n\u003cli\u003eHouse of worship\u003c\/li\u003e\n\u003cli\u003eMulti-purpose rooms\u003c\/li\u003e\n\u003cli\u003eCommercial meeting spaces\u003c\/li\u003e\n\u003cli\u003eAll-hands rooms\u003c\/li\u003e\n\u003cli\u003eTraining rooms\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;min-width:520px;\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated output power (IHF-A-202)\u003c\/td\u003e\n\u003ctd\u003e240 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput modes\u003c\/td\u003e\n\u003ctd\u003e4 ohm, 8 ohm, 70 V, 100 V (DIP selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput stage topology\u003c\/td\u003e\n\u003ctd\u003eClass D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax output voltage (1 kHz, THD 0.5%, no load)\u003c\/td\u003e\n\u003ctd\u003e31 VRMS (4 ohm) \/ 45 VRMS (8 ohm) \/ 71 VRMS (70 V) \/ 102 VRMS (100 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e2 mic\/line, 2 aux, EMG priority input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhantom power\u003c\/td\u003e\n\u003ctd\u003e48 V DC, switchable (both mic inputs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response (any input to output, -3 dB)\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;20 Hz - 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDistortion\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.5% at rated output power, 1 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-noise ratio (A-weighted)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;100 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEqualization\u003c\/td\u003e\n\u003ctd\u003eBass +\/-12 dB \/ 100 Hz; Treble +\/-12 dB \/ 10 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-pass filter\u003c\/td\u003e\n\u003ctd\u003eSwitchable 120 Hz, 12 dB\/oct (permanent 20 Hz lo-cut)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoudspeaker connector\u003c\/td\u003e\n\u003ctd\u003e4-pin Eurostyle (2-pin LoZ, 2-pin HiZ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMains power supply\u003c\/td\u003e\n\u003ctd\u003e100 - 240 VAC +\/-10%, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby power consumption\u003c\/td\u003e\n\u003ctd\u003e1.25 W (remote off active)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eFour-stage fan (Off \/ Slow \/ Medium \/ Fast)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e44.2 x 218 x 217.7 mm (1.74 x 8.6 x 8.57 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e1.9 kg (4.18 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-5 C to 45 C (23 F to 113 F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIEC protection class\u003c\/td\u003e\n\u003ctd\u003eClass I (grounded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp style=\"font-size:0.85em;\"\u003eSpecifications sourced from the Dynacord U240:1M datasheet. Data subject to change without notice.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoes the U240:1M support both 70 V and 100 V distributed speaker systems?\u003c\/strong\u003e\u003cbr\u003eYes. The output is DIP-switch selectable for 4 ohm, 8 ohm, 70 V, and 100 V, so it works with high-Z distributed ceiling and pendant systems as well as low-Z surface speakers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many speakers can 240 W drive on a 70 V\/100 V line?\u003c\/strong\u003e\u003cbr\u003eTotal connected speaker tap wattage should stay within the 240 W rating with headroom for line losses. Sum the tap settings of all speakers in the zone and confirm the total fits within the amplifier rating during system design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it page over background music automatically?\u003c\/strong\u003e\u003cbr\u003eYes. VOX ducking on the MIC2 input lowers music when speech is detected, and the EMG priority input overrides all program audio for emergency or all-call messages.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it integrate with a call station?\u003c\/strong\u003e\u003cbr\u003eThe MIC1 input provides a call-station interface on a 5-pin Eurostyle connector with contact-closure triggering and a configurable two-tone chime. It is compatible with the Dynacord PLE-1CS all-call station.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the amplifier mounted in an equipment rack?\u003c\/strong\u003e\u003cbr\u003eThe half-rack 1U chassis ships with brackets for single rack-mount, side-by-side mounting (two units per rack space), table-top, or under-counter installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat warranty and support are available?\u003c\/strong\u003e\u003cbr\u003eDynacord products carry the manufacturer's standard warranty. Creation Networks provides pre-sale system design guidance and post-sale support for commercial AV deployments. Contact our team through the Creation Networks site for documentation and assistance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this model suitable for 24\/7 operation?\u003c\/strong\u003e\u003cbr\u003eYes. The Class-D design, four-stage cooling, protection circuitry, and remote standby make it appropriate for continuous fixed-install commercial use.\u003c\/p\u003e","brand":"Dynacord","offers":[{"title":"Default Title","offer_id":47741652795628,"sku":"U240:1M-US","price":512.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/DYN-U240-1M-US_21fb3194-7f35-4fb1-a6f3-10b15dccdf07.jpg?v=1781711964","url":"https:\/\/creationnetworks.net\/products\/dynacord-u240-1m-us-240w-single-channel-mixer-amplifier","provider":"Creation Networks","version":"1.0","type":"link"}