{"product_id":"jb-systems-1u-classd-amplifier-2x400w-4ohms","title":"JB SYSTEMS 1U classD amplifier 2x400W  4ohms","description":"\u003ch3\u003e\u003cstrong\u003eCARATTERISTICHE\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eAMP 400.2 Mk2 è la versione Mark II del noto finale di potenza professionale JB Systems AMP 400.2. È un amplificatore a 2 canali in classe-D da 2 x 250 W RMS su 8 ohm e 2 x 450 W RMS su 4 ohm. Esternamente mantiene le dimensioni particolarmente compatte del modello precedente, con una larghezza rack standard di 19\" e un’altezza 1 U (44 mm). Internamente è stato invece completamente rielaborato nel layout per migliorare l’affidabilità e la dissipazione del calore; a tal proposito, si è fatto uso di ben tre ventole per mantenere la temperatura controllata. Il progetto si basa sull’uso di un alimentatore switching soft start estremamente efficiente. Tre le modalità di lavoro: stereo, mono o bridged. Il modo stereo è quello convenzionale in cui entrambi i canali lavorano separatamente. Il modo mono è, di base, identico a quello stereo ma con gli ingressi di entrambi i canali linkati così che l’uscita sarà mono; in tal caso, si potrà usare solo l’ingresso del canale LEFT per pilotare con lo stesso segnale entrambi i canali d’uscita. Infine, il modo bridge mette a ponte gli stadi finali per una potenza di ben 900 W su 8 ohm. Un limitatore di picco previene la distorsione del segnale, mentre un filtro low cut taglia le basse frequenze a 75 Hz con un filtro molto ripido a 24 dB\/oct. La sensibilità d’ingresso è variabile secondo tra valori: 0,775 V \/ 1,0 V \/ 1,44 V per adattarsi a qualsiasi sorgente. Presente anche l’interruttore posteriore per la massa flottante.\u003c\/p\u003e\n\n\u003cp\u003ePer impedire alle persone non autorizzate di modificare i livelli d’ingresso, è possibile installare una copertura in plastica (inclusa), mediante 4 viti, davanti ai controlli frontali.\u003c\/p\u003e\n\n\u003cp\u003eGli ingressi dell’amplificatore sono XLR bilanciati, è presente un’uscita link per il collegamento di un altro finale di potenza in daisy chain, mentre le uscite sono su connettori speakON. Protezioni contro cortocircuiti, alte temperature e sovraccarichi.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSPECIFICHE\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\u003ctable border=\"1\" id=\"product-attribute-specs-table\" style=\"width: 700px;\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : Dimensions (cm)\u003c\/th\u003e\n\t\t\t\u003ctd\u003e48.3 x 24 x 4.4\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : Weight (kg)\u003c\/th\u003e\n\t\t\t\u003ctd\u003e4.5\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : Color\u003c\/th\u003e\n\t\t\t\u003ctd\u003eblack\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : Powerinput\u003c\/th\u003e\n\t\t\t\u003ctd\u003eAC 240V, 50Hz\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : Energy Label\u003c\/th\u003e\n\t\t\t\u003ctd\u003eNo\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : Display\u003c\/th\u003e\n\t\t\t\u003ctd\u003eNo\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : Fixation\u003c\/th\u003e\n\t\t\t\u003ctd\u003e19\" rack mountable\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : RU\u003c\/th\u003e\n\t\t\t\u003ctd\u003e1U\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eGeneral : IP rating\u003c\/th\u003e\n\t\t\t\u003ctd\u003eindoor\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eAudio : frequency range\u003c\/th\u003e\n\t\t\t\u003ctd\u003e20 Hz - 20000 Hz\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eAudio : S\/N ratio (\u0026gt; dB)\u003c\/th\u003e\n\t\t\t\u003ctd\u003e100\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eAudio : max. output channels\u003c\/th\u003e\n\t\t\t\u003ctd\u003e2\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eAudio : Wrms 4Ω stereo, per channel\u003c\/th\u003e\n\t\t\t\u003ctd\u003e450\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eAudio : Wrms 8Ω stereo, per channel\u003c\/th\u003e\n\t\t\t\u003ctd\u003e250\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eAudio : Wrms 8Ω bridge\u003c\/th\u003e\n\t\t\t\u003ctd\u003e900\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eAudio : functions\u003c\/th\u003e\n\t\t\t\u003ctd\u003eadjustable crossover, bridge mode, limiter\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eConnections : input\u003c\/th\u003e\n\t\t\t\u003ctd\u003e3 pin XLR, IEC\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eConnections : output\u003c\/th\u003e\n\t\t\t\u003ctd\u003e3 pin XLR, speakon\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/ul\u003e","brand":"JB SYSTEMS","offers":[{"title":"Default Title","offer_id":53993822617933,"sku":"B08129","price":334.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/0643\/6173\/files\/171758-large_default.jpg?v=1779945583","url":"https:\/\/musicdelivery.net\/products\/jb-systems-1u-classd-amplifier-2x400w-4ohms","provider":"Music Delivery","version":"1.0","type":"link"}