{"product_id":"jbl-csma-280-commercial-mixer-amplifier-8-input-dual-80w-output-with-70v-100v-direct-drive-and-drivecore™-technology","title":"JBL CSMA 280 Commercial Mixer Amplifier – 8 Input \/ Dual 80W Output with 70V\/100V Direct Drive and DriveCore™ Technology","description":"\u003cp data-start=\"200\" data-end=\"528\"\u003eThe \u003cstrong data-start=\"204\" data-end=\"220\"\u003eJBL CSMA 280\u003c\/strong\u003e is the most powerful dual-channel model in JBL’s CSMA Commercial Series, designed for multi-zone background music and paging systems in retail, hospitality, corporate, and education environments. It combines flexible input routing, dual-zone amplification, and high efficiency into a compact 1U rack design.\u003c\/p\u003e\n\u003cp data-start=\"530\" data-end=\"861\"\u003ePowered by \u003cstrong data-start=\"541\" data-end=\"580\"\u003eCrown DriveCore™ Class-D technology\u003c\/strong\u003e, the CSMA 280 delivers \u003cstrong data-start=\"604\" data-end=\"622\"\u003e2 × 80W output\u003c\/strong\u003e, offering higher headroom and better coverage for medium to large commercial spaces. Its \u003cstrong data-start=\"712\" data-end=\"729\"\u003e8-input mixer\u003c\/strong\u003e supports multiple microphones and music sources, making it ideal for complex installations. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"863\" data-end=\"1102\"\u003eThe amplifier supports both \u003cstrong data-start=\"891\" data-end=\"916\"\u003elow-impedance (4Ω\/8Ω)\u003c\/strong\u003e and \u003cstrong data-start=\"921\" data-end=\"1001\"\u003e70V\/100V distributed audio systems without requiring an external transformer\u003c\/strong\u003e, providing excellent flexibility for large speaker networks. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1104\" data-end=\"1331\"\u003eA key advantage is its \u003cstrong data-start=\"1127\" data-end=\"1151\"\u003edual-zone capability\u003c\/strong\u003e, allowing independent control of two speaker areas with separate volume and tone adjustments—perfect for environments with different zones like indoor\/outdoor or front\/back areas.\u003c\/p\u003e\n\u003chr data-start=\"1333\" data-end=\"1336\"\u003e\n\u003ch2 data-section-id=\"m1vap0\" data-start=\"1338\" data-end=\"1364\"\u003ePerformance Highlights:\u003c\/h2\u003e\n\u003cp data-start=\"1365\" data-end=\"1665\"\u003e• Dual-channel output: 80W × 2 for higher power applications \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1463\" data-end=\"1466\"\u003e• 8-input mixer for multiple audio sources\u003cbr data-start=\"1508\" data-end=\"1511\"\u003e• DriveCore™ Class-D amplification – efficient and fanless\u003cbr data-start=\"1569\" data-end=\"1572\"\u003e• Direct 70V \/ 100V support (no transformer required)\u003cbr data-start=\"1625\" data-end=\"1628\"\u003e• Independent control for two zones\u003c\/p\u003e\n\u003chr data-start=\"1667\" data-end=\"1670\"\u003e\n\u003ch2 data-section-id=\"1071k5m\" data-start=\"1672\" data-end=\"1706\"\u003eWhy You Should Buy This Product\u003c\/h2\u003e\n\u003cp data-start=\"1708\" data-end=\"1999\"\u003e• ⭐ Highest power in CSMA dual-zone lineup\u003cbr data-start=\"1750\" data-end=\"1753\"\u003e• ⭐ Dual-zone control – manage two areas independently\u003cbr data-start=\"1807\" data-end=\"1810\"\u003e• ⭐ No external transformer needed for 70V\/100V systems\u003cbr data-start=\"1865\" data-end=\"1868\"\u003e• ⭐ Silent operation (fanless) – ideal for commercial spaces\u003cbr data-start=\"1928\" data-end=\"1931\"\u003e• ⭐ Compact yet powerful – perfect balance of size and performance\u003c\/p\u003e\n\u003chr data-start=\"2001\" data-end=\"2004\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"2006\" data-end=\"2021\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"2023\" data-end=\"2435\"\u003e• 8-input \/ 2-output commercial mixer amplifier\u003cbr data-start=\"2070\" data-end=\"2073\"\u003e• Dual 80W output channels\u003cbr data-start=\"2099\" data-end=\"2102\"\u003e• Crown DriveCore™ Class-D technology\u003cbr data-start=\"2139\" data-end=\"2142\"\u003e• Balanced mic\/line inputs + RCA inputs\u003cbr data-start=\"2181\" data-end=\"2184\"\u003e• Independent bass and treble controls per zone\u003cbr data-start=\"2231\" data-end=\"2234\"\u003e• Priority muting and voice-activated ducking\u003cbr data-start=\"2279\" data-end=\"2282\"\u003e• Built-in 70V \/ 100V output (Hi-Z support)\u003cbr data-start=\"2325\" data-end=\"2328\"\u003e• Remote volume control via JBL CSR-V (RJ45)\u003cbr data-start=\"2372\" data-end=\"2375\"\u003e• Illuminated front-panel controls\u003cbr data-start=\"2409\" data-end=\"2412\"\u003e• Rack-mountable (1U)\u003c\/p\u003e\n\u003chr data-start=\"2437\" data-end=\"2440\"\u003e\n\u003ch2 data-section-id=\"58xi60\" data-start=\"2442\" data-end=\"2471\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1b952b4\" data-start=\"2473\" data-end=\"2484\"\u003eGeneral\u003c\/h3\u003e\n\u003cp data-start=\"2486\" data-end=\"2565\"\u003e• Product Type: Commercial Mixer Amplifier\u003cbr data-start=\"2528\" data-end=\"2531\"\u003e• Brand: JBL\u003cbr data-start=\"2543\" data-end=\"2546\"\u003e• Model: CSMA 280\u003c\/p\u003e\n\u003chr data-start=\"2567\" data-end=\"2570\"\u003e\n\u003ch3 data-section-id=\"jt44pa\" data-start=\"2572\" data-end=\"2595\"\u003eAudio \u0026amp; Performance\u003c\/h3\u003e\n\u003cp data-start=\"2597\" data-end=\"2726\"\u003e• Output Power: 80W × 2 \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2658\" data-end=\"2661\"\u003e• Frequency Response: —\u003cbr data-start=\"2684\" data-end=\"2687\"\u003e• Signal-to-Noise Ratio: —\u003cbr data-start=\"2713\" data-end=\"2716\"\u003e• THD: —\u003c\/p\u003e\n\u003chr data-start=\"2728\" data-end=\"2731\"\u003e\n\u003ch3 data-section-id=\"bbkx2b\" data-start=\"2733\" data-end=\"2749\"\u003eConnectivity\u003c\/h3\u003e\n\u003cp data-start=\"2751\" data-end=\"3042\"\u003e• Inputs: 8 (Mic \/ Line \/ RCA) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2819\" data-end=\"2822\"\u003e• Outputs: 2 (independent zones) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2892\" data-end=\"2895\"\u003e• Speaker Output: 70V \/ 100V \/ 4Ω \/ 8Ω\u003cbr data-start=\"2933\" data-end=\"2936\"\u003e• Phantom Power: 27VDC \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2996\" data-end=\"2999\"\u003e• Remote Control: RJ45 (CSR-V compatible)\u003c\/p\u003e\n\u003chr data-start=\"3044\" data-end=\"3047\"\u003e\n\u003ch3 data-section-id=\"1gvm73g\" data-start=\"3049\" data-end=\"3069\"\u003eDSP \u0026amp; Processing\u003c\/h3\u003e\n\u003cp data-start=\"3071\" data-end=\"3196\"\u003e• DSP: No\u003cbr data-start=\"3080\" data-end=\"3083\"\u003e• Equalization: Bass \u0026amp; Treble (per output channel)\u003cbr data-start=\"3133\" data-end=\"3136\"\u003e• Priority Muting: Yes\u003cbr data-start=\"3158\" data-end=\"3161\"\u003e• Ducking: Yes (VOX)\u003cbr data-start=\"3181\" data-end=\"3184\"\u003e• Chime: —\u003c\/p\u003e\n\u003chr data-start=\"3198\" data-end=\"3201\"\u003e\n\u003ch3 data-section-id=\"v033e1\" data-start=\"3203\" data-end=\"3230\"\u003ePhysical \u0026amp; Installation\u003c\/h3\u003e\n\u003cp data-start=\"3232\" data-end=\"3610\"\u003e• Form Factor: Rack-mount (1U) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"3300\" data-end=\"3303\"\u003e• Cooling: Fanless (convection cooling) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"3380\" data-end=\"3383\"\u003e• Dimensions (H × W × D): 43 × 437 × 303 mm \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"3466\" data-end=\"3469\"\u003e• Weight: ~6.9 kg \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"3526\" data-end=\"3529\"\u003e• Power Supply: Universal AC (100–240V) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3612\" data-end=\"3615\"\u003e\n\u003ch3 data-section-id=\"k34kmu\" data-start=\"3617\" data-end=\"3634\"\u003eConfiguration\u003c\/h3\u003e\n\u003cp data-start=\"3636\" data-end=\"3756\"\u003e• Amplifier Type: Class-D (DriveCore™)\u003cbr data-start=\"3674\" data-end=\"3677\"\u003e• Channels: 2-channel (dual-zone)\u003cbr data-start=\"3710\" data-end=\"3713\"\u003e• Mixer Inputs: 8\u003cbr data-start=\"3730\" data-end=\"3733\"\u003e• Network Control: No\u003c\/p\u003e\n\u003chr data-start=\"3758\" data-end=\"3761\"\u003e\n\u003ch3 data-section-id=\"v6ee9q\" data-start=\"3763\" data-end=\"3775\"\u003eIncluded\u003c\/h3\u003e\n\u003cp data-start=\"3777\" data-end=\"3870\"\u003e• 1 × Mixer Amplifier\u003cbr data-start=\"3798\" data-end=\"3801\"\u003e• 1 × Rack Mount Kit\u003cbr data-start=\"3821\" data-end=\"3824\"\u003e• 1 × Power Cable\u003cbr data-start=\"3841\" data-end=\"3844\"\u003e• 1 × User Documentation\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":52850452300095,"sku":null,"price":87600.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/5942\/1272\/files\/CSMA_Front_Stack_8CH_vert_medium_1.jpg?v=1777044315","url":"https:\/\/audiomaxx.in\/products\/jbl-csma-280-commercial-mixer-amplifier-8-input-dual-80w-output-with-70v-100v-direct-drive-and-drivecore%e2%84%a2-technology","provider":"Audiomaxx India","version":"1.0","type":"link"}