{"product_id":"adastra-um90-ultra-compact-100v-mixer-amplifier","title":"Adastra UM90 Ultra Compact 100V Mixer-Amplifier","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Adastra UM90 is a 100V mixer-amplifier built into a very small housing, aimed at small to medium PA installations where space is tight. It uses a class D amplifier design with a transformer output, so you can run it into either a 100V line system or an 8 Ohm speaker load. The mono output connects through screw terminals on the rear panel, and the unit ships with hardware for mounting two amplifiers side by side in a single 1U 19-inch rack space.\u003c\/p\u003e\n\u003cp\u003eAudio sources are handled by a built-in USB\/FM\/BT player, so you can play files from a USB stick, tune the FM radio, or stream over Bluetooth 5.0. The Bluetooth section supports a programmable ID, which helps when you are running more than one unit in the same building. Physical inputs cover a 6.3mm microphone socket, a stereo RCA line input and a 3.5mm aux input. Each source, the microphone, line and the USB\/FM\/BT section, has its own front panel volume control, with a master volume governing the overall level.\u003c\/p\u003e\n\u003cp\u003ePower comes from either 170-264Vac mains via an IEC connector or a 24Vdc supply through screw terminals, so the amplifier can be backed up or run from DC where needed. There are 24V relay contacts for mute, along with a stereo RCA line output (mono signal) for feeding a further amplifier or recording device. Rated THD is under 0.4% at 1kHz, with a frequency response of 100Hz to 18kHz, an input impedance of 1k Ohms on mic and line, and a signal-to-noise ratio of 80dB on line and 75dB on mic.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.02KG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e300mm x 210mm x 44mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm output\u003c\/td\u003e\n\u003ctd\u003eFog, siren \u0026amp; alert generator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power : rms\u003c\/td\u003e\n\u003ctd\u003e90W (80W @ 24Vdc power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e170-264Vac, 50Hz (IEC) or 24Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier : construction\u003c\/td\u003e\n\u003ctd\u003eClass D + transformer output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio source\u003c\/td\u003e\n\u003ctd\u003eInternal USB\/FM\/BT player\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth version\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e1 x mic (6.3mm), 1 x line (2 x RCA), 1 x aux (3.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine output\u003c\/td\u003e\n\u003ctd\u003e2 x RCA (mono)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker outputs\u003c\/td\u003e\n\u003ctd\u003eScrew terminals - 100V \/ 8 Ohm \/ Com\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC power\u003c\/td\u003e\n\u003ctd\u003e24Vdc screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMute\u003c\/td\u003e\n\u003ctd\u003e24V relay contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.4% @ 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance\u003c\/td\u003e\n\u003ctd\u003e1k Ohm (mic\/line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput sensitivity\u003c\/td\u003e\n\u003ctd\u003e-10dB (line), -45dB (mic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e80dB (line), 75dB (mic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e100Hz - 18kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/953179UK_ac4f2c38-444b-481d-88c1-c6b8e9b33735.pdf?v=1785058868\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eCan the UM90 drive both 100V line and low impedance speakers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The mono output connects via rear screw terminals and works with either a 100V line system or an 8 Ohm speaker load, so you can match it to most small PA setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat audio sources are built in?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt has an internal player covering USB, FM radio and Bluetooth 5.0 streaming. Each is controlled from the front panel alongside the mic and line inputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the UM90 powered?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou can run it from 170-264Vac mains at 50Hz through the IEC input, or from a 24Vdc supply via screw terminals for battery backup or DC installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I rack mount two units together?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Because of its ultra compact size, the UM90 ships with hardware to mount two units side by side in a single 1U 19-inch rack space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat inputs does it have for microphones and external sources?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThere is one 6.3mm microphone input, one stereo RCA line input and one 3.5mm aux input. A mono RCA line output is also provided for feeding another device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the programmable Bluetooth ID for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt lets you give each unit a unique Bluetooth name, which is useful when you have several amplifiers in the same space and need to pair with the right one.\u003c\/p\u003e\n","brand":"AVSL","offers":[{"title":"Default Title","offer_id":53272133075211,"sku":"953.179UK","price":229.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/953179UK_0.jpg?v=1785058883","url":"https:\/\/niori.co.uk\/products\/adastra-um90-ultra-compact-100v-mixer-amplifier","provider":"Niori","version":"1.0","type":"link"}