{"product_id":"jbl-csma-1120-mixer-amplifier-120w-4-input","title":"JBL Commercial CSMA 1120 Mixer-Amplifier - 120W RMS, 4 Inputs, 70V\/100V, Fanless 1U (NCSMA1120-U-US)","description":"\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eOne Rack Unit Instead of a Mixer, an Amp, and a Transformer\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003ePicture a cafe with ceiling speakers overhead, a paging mic behind the counter, and a music player in the back office. The usual answer is a small mixer, a separate amplifier, and a 70V transformer stacked in a closet. The JBL Commercial CSMA 1120 collapses all three into one fanless rack unit, mixing four inputs down to 120 watts of output. Explore more \u003ca href=\"\/collections\/harman\"\u003eHarman\u003c\/a\u003e audio or other \u003ca href=\"\/collections\/audio-video\"\u003eaudio video\u003c\/a\u003e gear.\u003c\/p\u003e\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eFour inputs, balanced mic and line plus unbalanced RCA, mix down to a single amplified output. Crown DriveCore amplification does the heavy lifting, which is what keeps the chassis fanless and down to a single rack space while drawing only 40 watts in operation. On the output side it drives 8 ohm and 4 ohm loads directly and feeds 70V and 100V distributed speaker lines without a separate transformer in the signal path. Everything an operator touches sits on the front panel: a volume control per input, master volume, bass and treble, and a power switch, each ring illuminated so levels stay readable in a dim room. RJ45 connectors on the rear accept JBL CSR-V in-wall volume controls when a room needs its own local level adjustment.\u003c\/p\u003e\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e120 W RMS from four mixed inputs:\u003c\/strong\u003e balanced mic and line sources alongside unbalanced RCA, feeding one amplified output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70V and 100V distributed audio plus 8 and 4 ohm loads:\u003c\/strong\u003e no separate transformer required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFanless single rack unit:\u003c\/strong\u003e Crown DriveCore runs up to 80 percent more efficient than previous designs, at 40 W operating draw.\u003c\/li\u003e\n\u003cli\u003eRJ45 connectors accept JBL CSR-V in-wall volume controls for local level adjustment.\u003c\/li\u003e\n\u003cli\u003eA universal 100 to 240 VAC supply, Energy Star qualification, and a three-year no-fault transferable warranty.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Harman International Industries, Inc","offers":[{"title":"Default Title","offer_id":52336336502968,"sku":"NCSMA1120-U-US","price":815.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/9110\/4952\/files\/1027179178_ae53ff82-ac89-4e60-9e88-7251fe37542f.jpg?v=1764405565","url":"https:\/\/islandelectricalsupply.com\/products\/jbl-csma-1120-mixer-amplifier-120w-4-input","provider":"Island Electrical Supply","version":"1.0","type":"link"}