{"product_id":"rotel-rmb-1504-4-channel-power-amplifier","title":"Rotel RMB-1504 4-Channel CI Power Amplifier (70W x4) | RMB-1504","description":"\u003ch2\u003eRotel RMB-1504 4-Channel Distribution Power Amplifier\u003c\/h2\u003e\n\n\u003cp\u003e\n  The Rotel RMB-1504 is a 4-channel Class AB amplifier designed for custom installation: two stereo zones, theater expansion (heights\/wides),\n  or dedicated amplification for distributed audio where you need rack-friendly control features. It delivers \u003cstrong\u003e70 W\/ch into 8 Ω\u003c\/strong\u003e or\n  \u003cstrong\u003e115 W\/ch into 4 Ω\u003c\/strong\u003e (all channels driven) and adds front-panel attenuation controls, signal-sensing auto power, 12V trigger in\/out,\n  and RCA loop outputs for clean system scaling.\n\u003c\/p\u003e\n\n\u003ch3\u003eDealer Quick Fit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBest for\u003c\/strong\u003e: 2-zone stereo distribution (4 channels) or adding surround\/height channels in rack-based theaters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e: 4 × 70 W\/ch (8 Ω, all channels driven) • 4 × 115 W\/ch (4 Ω, all channels driven)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInputs\u003c\/strong\u003e: 2 × stereo RCA pairs (feeds 4 channels)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstaller controls\u003c\/strong\u003e: front-panel attenuation controls (per channel)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomation\u003c\/strong\u003e: signal sensing + 12V trigger in\/out\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpansion\u003c\/strong\u003e: RCA loop outputs for daisy-chaining additional amplifiers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRack\u003c\/strong\u003e: 3U front-panel height; rack ears included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Dealers Care\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistribution-ready\u003c\/strong\u003e: purpose-built for two stereo zones with level matching at the amp—no DSP required for basic balancing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePredictable automation\u003c\/strong\u003e: choose signal-sense for simple installs or 12V trigger for deterministic control-system behavior.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy scaling\u003c\/strong\u003e: loop outputs simplify expansion when one chassis isn’t enough for the channel count.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 Ω capability\u003c\/strong\u003e: supports typical in-wall\/in-ceiling speaker loads and many distributed-audio layouts when wired correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow the Inputs Work (CI-Friendly)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput pairs\u003c\/strong\u003e: two stereo RCA inputs are intended to feed two amplifier channel pairs (4 channels total).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFront attenuation\u003c\/strong\u003e: trim each channel to match zone SPL targets and speaker sensitivity differences.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoop outputs\u003c\/strong\u003e: pass the incoming analog signal to another amplifier for system expansion (use short runs to minimize noise pickup).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs at a Glance\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\n  \u003ctable\u003e\n    \u003ccaption style=\"text-align:left; font-weight:600; padding:6px 0;\"\u003eCore performance \u0026amp; electrical specifications\u003c\/caption\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"col\" style=\"text-align:left;\"\u003eCategory\u003c\/th\u003e\n        \u003cth scope=\"col\" style=\"text-align:left;\"\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eContinuous Power Output\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e70 W\/ch (8 Ω, all channels driven) • 115 W\/ch (4 Ω, all channels driven)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eAmplifier Type\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eClass AB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eTHD (20 Hz–20 kHz)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u0026lt; 0.03%\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e10 Hz–100 kHz (±1 dB)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eS\/N Ratio (IHF “A”)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e115 dB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e26 dB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eDamping Factor\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u0026gt; 200\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eSpeaker Impedance\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e4 Ω minimum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e450 W\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eStandby Power\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u0026lt; 0.5 W (Signal Sense: 1 W)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eBTU (4 Ω, 1\/8 power)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e810 BTU\/h\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eDimensions (W×H×D)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e17.0 × 5.7 × 17.4 in (431 × 144 × 443 mm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eFront Panel Height\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e3U \/ 5.25 in (132.6 mm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003e32.8 lb (14.9 kg)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnectivity \u0026amp; Control\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalog Inputs\u003c\/strong\u003e: 2 × stereo RCA pairs (4-channel total feed)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCA Loop Outputs\u003c\/strong\u003e: 2 × stereo loop outputs for daisy-chaining\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeaker Outputs\u003c\/strong\u003e: 4 channels of binding-post outputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto Power\u003c\/strong\u003e: signal sensing turn-on\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrigger\u003c\/strong\u003e: 12V trigger IN\/OUT (3.5 mm mono)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFront Controls\u003c\/strong\u003e: per-channel input attenuation knobs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e: detachable IEC power cord\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes (What Dealers Need to Know)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo-zone planning\u003c\/strong\u003e: map each stereo input to a zone, then use front attenuation to balance room loudness and speaker efficiency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal-sense commissioning\u003c\/strong\u003e: verify the source\/preamp output level is sufficient for reliable wake\/sleep behavior.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrigger sequencing\u003c\/strong\u003e: use 12V trigger where deterministic automation is required; use trigger out to cascade additional amps.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoop-out hygiene\u003c\/strong\u003e: keep loop-out cables short and well-dressed; avoid running unbalanced analog alongside AC mains to reduce hum risk.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal strategy\u003c\/strong\u003e: provide rack ventilation and avoid blocking airflow paths for long-term reliability under sustained loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFinish Options\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBlack\u003c\/li\u003e\n  \u003cli\u003eSilver\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommercial \u0026amp; Logistics (No Dealer Pricing)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMSRP\u003c\/strong\u003e: $1,499.00\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: 5 Years\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStatus\u003c\/strong\u003e: Active\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"overflow-x:auto\"\u003e\n  \u003ctable\u003e\n    \u003ccaption style=\"text-align:left; font-weight:600; padding:6px 0;\"\u003eIdentifiers \u0026amp; shipping carton\u003c\/caption\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth scope=\"col\" style=\"text-align:left;\"\u003eFinish\u003c\/th\u003e\n        \u003cth scope=\"col\" style=\"text-align:left;\"\u003eModel\u003c\/th\u003e\n        \u003cth scope=\"col\" style=\"text-align:left;\"\u003eUPC\u003c\/th\u003e\n        \u003cth scope=\"col\" style=\"text-align:left;\"\u003eShip Wt\u003c\/th\u003e\n        \u003cth scope=\"col\" style=\"text-align:left;\"\u003eCarton (L×W×H)\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eBlack\u003c\/td\u003e\n        \u003ctd\u003eRMB1504B\u003c\/td\u003e\n        \u003ctd\u003e672563132117\u003c\/td\u003e\n        \u003ctd\u003e45 lb\u003c\/td\u003e\n        \u003ctd\u003e22 × 22 × 11 in\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSilver\u003c\/td\u003e\n        \u003ctd\u003eRMB1504S\u003c\/td\u003e\n        \u003ctd\u003e672563632112\u003c\/td\u003e\n        \u003ctd\u003e45 lb\u003c\/td\u003e\n        \u003ctd\u003e22 × 22 × 11 in\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRack ears\u003c\/li\u003e\n  \u003cli\u003eDetachable IEC power cord\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIs it rack-mountable?\u003c\/strong\u003e Yes — rack ears are included.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes it turn on automatically?\u003c\/strong\u003e Yes — signal-sensing auto power is supported.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes it support 12V trigger control?\u003c\/strong\u003e Yes — 12V trigger input and output are provided.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCan I daisy-chain signal to another amp?\u003c\/strong\u003e Yes — stereo RCA loop outputs are included for expansion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes it have level controls?\u003c\/strong\u003e Yes — per-channel front input attenuation controls support zone balancing.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Rotel","offers":[{"title":"Default Title","offer_id":45106036506815,"sku":"RMB-1504","price":1066.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0410\/6262\/9541\/files\/Rotel_RMB1504_black_20Front_Shadow.jpg?v=1769664607","url":"https:\/\/www.simplycontrolled.ca\/products\/rotel-rmb-1504-4-channel-power-amplifier","provider":"Simply Controlled","version":"1.0","type":"link"}