{"product_id":"adastra-a8300-8-zone-commercial-mixer-amplifier","title":"Adastra A8300 8-Zone Commercial Mixer-Amplifier","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Adastra A8300 is a commercial mixer-amplifier built to drive eight stereo output zones at 300W each. Every zone has switchable stereo or dual mono speaker outputs, so you can run a true stereo pair or split the zone into two mono lines depending on the room. Each output carries its own 2-band EQ with Bass, Treble and Master Volume, giving you independent control over the sound in each area from background music up to higher sound pressure levels.\u003c\/p\u003e\n\u003cp\u003eSource options are broad. Each speaker output can take its audio from the internal media player or from three external stereo line inputs, plus a digital optical input (TOSLink S\/PDIF) for AV applications. The built-in player handles mp3 playback from USB drive or microSD card, and includes a Bluetooth wireless receiver and an FM radio tuner with an external aerial (US: antenna) connection via an F-type socket. Two microphone inputs each have their own level control and can be set to override the line input for voice announcements across the system.\u003c\/p\u003e\n\u003cp\u003eFor installed and commercial use, the A8300 fits a 2U rack and puts its controls on an accessible front panel. Amplification is Class D with a frequency response of 20Hz to 20kHz (±0.5dB), dynamic range of 92dB and THD+N below 0.1%. Emergency muting can be triggered from an alarm panel through the 24V EMG MUTE contacts on the rear. Protection covers thermal, over-current, over-voltage and short-circuit conditions. It runs from a 230Vac mains supply and suits a range of system layouts across different sized installations.\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\u003e230Vac, 50Hz (IEC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier : construction\u003c\/td\u003e\n\u003ctd\u003eClass D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e20Hz - 20kHz ±0.5dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicrophone inputs\u003c\/td\u003e\n\u003ctd\u003e2 x 6.3mm jack (mono) front or rear panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine inputs\u003c\/td\u003e\n\u003ctd\u003eLine 1 (L+R RCA), Line 2 (L+R RCA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital audio input\u003c\/td\u003e\n\u003ctd\u003eTOSLink optical (S\/PDIF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput sensitivity : line\u003c\/td\u003e\n\u003ctd\u003e0.775Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput sensitivity : aux\u003c\/td\u003e\n\u003ctd\u003e0.480Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary input\u003c\/td\u003e\n\u003ctd\u003e3.5mm stereo jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance\u003c\/td\u003e\n\u003ctd\u003e10k Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio source\u003c\/td\u003e\n\u003ctd\u003eUSB\/microSD mp3 playback, FM tuner, B\/T receiver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB\/T wireless version\u003c\/td\u003e\n\u003ctd\u003e2.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput controls\u003c\/td\u003e\n\u003ctd\u003eAux, Media, Line1, Line2, Mic1, Mic2, Talkover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput controls\u003c\/td\u003e\n\u003ctd\u003eMode, Stereo\/Mono, Treble, Bass, Channel Volumes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna connection\u003c\/td\u003e\n\u003ctd\u003eF type (FM tuner)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic range\u003c\/td\u003e\n\u003ctd\u003e92dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD +N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThermal, over-current, over-voltage, short-circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmergency control\u003c\/td\u003e\n\u003ctd\u003e24V mute terminals\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\/953483UK.pdf?v=1785060237\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eCan each zone run stereo or mono?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Every output zone is switchable between stereo and dual mono, so you can drive a stereo pair or split the zone into two independent mono speaker lines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat audio sources does the A8300 support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt has an internal media player for mp3 playback from USB or microSD, plus Bluetooth, an FM tuner, three stereo line inputs, an aux input and a digital optical (TOSLink S\/PDIF) input.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the emergency muting work?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear panel has 24V EMG MUTE contacts that can be actuated from an alarm panel, allowing the amplifier to mute for emergency announcements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I make live voice announcements?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. There are two microphone inputs, each with its own level control, and they can be set to override the stereo line input for voice announcements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much rack space does it need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe A8300 fits a standard 2U rack space and runs from a 230Vac, 50Hz IEC mains supply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat connection does the FM tuner need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe FM tuner uses an external aerial (US: antenna) connected via an F-type socket on the rear panel.\u003c\/p\u003e\n","brand":"AVSL","offers":[{"title":"Default Title","offer_id":53272141136139,"sku":"953.483UK","price":499.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/953483UK_0.jpg?v=1785060260","url":"https:\/\/niori.co.uk\/products\/adastra-a8300-8-zone-commercial-mixer-amplifier","provider":"Niori","version":"1.0","type":"link"}