{"product_id":"adastra-rm4460-zoning-100v-4-x-60w-mixer-amplifier","title":"Adastra RM4460 Zoning 100V 4 x 60W Mixer-Amplifier","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Adastra RM4460 is a 1U 19-inch rack-mountable quad amplifier built around four independent class-D amplifiers, each rated at 60W. Every output can feed either 100V line speakers or low impedance (4 or 8 ohm) speakers, chosen by connecting the upper or lower screw terminals on the rear panel. This makes it a practical option for zoned background music and announcements across shops, offices, gyms and similar venues where each area needs its own sound.\u003c\/p\u003e\n\u003cp\u003eEach of the four inputs can be routed to any or all of the four output zones, and every zone has its own level control plus a line level output for adding more amplifiers or powered speakers later. Inputs include a paging mic with switchable Vox to override other channels, two balanced mic\/line inputs with switchable phantom power, and a separate line input on RCA or screw terminals. Channels 1 to 3 have bass and treble controls for tone adjustment. An internal media player handles audio from a USB pen drive, FM radio and Bluetooth 5.0 for wireless playback from a smartphone.\u003c\/p\u003e\n\u003cp\u003eFor life safety systems, 24V EMG contacts on screw terminals mute inputs 2 to 4 when triggered by a fire alarm. If area-specific paging is needed, the optional CS4 call station (953.146UK) connects over RJ45 and gives you a fully independent zoning setup. The RM4460 measures 482 x 283 x 43mm, weighs 6.85kg and runs from a 100\/240Vac IEC supply. Protection covers short circuit, overload and overheating, so the unit stays reliable in continuous background music use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e100\/240Vac, 50\/60Hz (IEC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse rating\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003ePaging mic, 2 x mic\/line, 1 x line\/media player\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput connections\u003c\/td\u003e\n\u003ctd\u003e3 x XLR, 1 x RCA\/screw terminal, RJ45 (CS4), 3.5mm Aux\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput connections\u003c\/td\u003e\n\u003ctd\u003e4 x 100V (+\/-), 4 x 4 Ohm (+\/-), 4 x RCA (line level)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCall station input\u003c\/td\u003e\n\u003ctd\u003eRJ45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio source\u003c\/td\u003e\n\u003ctd\u003eUSB player, FM tuner and Bluetooth receiver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFire alarm contacts\u003c\/td\u003e\n\u003ctd\u003e24V screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power : rms\u003c\/td\u003e\n\u003ctd\u003e4 x 60W (100V or 4 Ohm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput sensitivity : mic\u003c\/td\u003e\n\u003ctd\u003e-38dBV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance : mic\u003c\/td\u003e\n\u003ctd\u003e5k Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput sensitivity : line\u003c\/td\u003e\n\u003ctd\u003e-10dBV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance : line\u003c\/td\u003e\n\u003ctd\u003e10k Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput sensitivity : call station\u003c\/td\u003e\n\u003ctd\u003e0dBV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance : call station\u003c\/td\u003e\n\u003ctd\u003e10k Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEqualiser : bass\u003c\/td\u003e\n\u003ctd\u003e100Hz ±10dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEqualiser : treble\u003c\/td\u003e\n\u003ctd\u003e10kHz ±10dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhantom power\u003c\/td\u003e\n\u003ctd\u003e+20V (switchable inputs 1-3)\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\u003eTHD +N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;2% @1kHz (rated power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eShort circuit, overload, overheat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482mm x 283mm x 43mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e6.85KG\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\/953446UK_84f1e5c5-0454-4fbf-8cc1-aa0d700804fa.pdf?v=1785060193\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eCan the RM4460 drive both 100V and low impedance speakers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Each of the four outputs can deliver up to 60W to either 100V line speakers or low impedance 4 or 8 ohm speakers, selected by using the upper or lower screw terminals on the rear panel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many zones does it support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt has four independent output zones. Any of the four inputs can be sent to any or all zones, and each zone has its own level control and a line level output for expansion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat audio sources are built in?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThere is an internal media player that reads audio files from a USB pen drive, tunes FM radio stations and receives audio over Bluetooth 5.0 from a smartphone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work with a fire alarm system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. It has 24V EMG contacts on screw terminals that mute inputs 2 to 4 when the fire alarm is triggered.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a paging mic or call station included?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe amplifier has a paging mic input with switchable Vox. For area-specific paging you can add the optional CS4 call station (953.146UK), which connects via RJ45.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit in a standard rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. It is a 1U 19-inch rack-mountable unit measuring 482 x 283 x 43mm and weighing 6.85kg.\u003c\/p\u003e\n","brand":"AVSL","offers":[{"title":"Default Title","offer_id":53272141037835,"sku":"953.446UK","price":459.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/953446UK_0.jpg?v=1785060208","url":"https:\/\/niori.co.uk\/products\/adastra-rm4460-zoning-100v-4-x-60w-mixer-amplifier","provider":"Niori","version":"1.0","type":"link"}