{"product_id":"cro-m-aud-0001","title":"High-Grade Condition – Crown 135MA – 3-Input Commercial Mixer-Amplifier – 35W – 8Ω\/70V\/100V Outputs – Universal 100–240V","description":"\u003cp\u003e\u003cstrong\u003eHigh-Grade Condition – Crown 135MA – 3-Input Commercial Mixer-Amplifier – 35W – 8Ω\/70V\/100V Outputs – Universal 100–240V\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003e🔹 Condition\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eUsed Equipment – Good Condition – Operational Testing Recommended\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis Crown 135MA commercial mixer-amplifier shows normal cosmetic signs of previous installation and commercial use, including surface marks, light scratches, dust, and wear around the controls.\u003c\/p\u003e\u003cp\u003eThe front control knobs, indicator lights, input controls, master volume control, bass and treble adjustments, rear RCA inputs, Phoenix-style terminal blocks, DIP configuration switches, and IEC power inlet are present.\u003c\/p\u003e\u003cp\u003eSeveral external low-voltage audio wires remain attached to the rear preamp-output terminal. These wires are remnants of the previous installation and may be removed or re-terminated during installation.\u003c\/p\u003e\u003cp\u003eThe supplied photos do not show the amplifier powered on or connected to speakers. Therefore, complete operational testing of the inputs, amplifier output, paging priority, telephone output, and controls is recommended before advertising it as fully tested and operational.\u003c\/p\u003e\u003ch3\u003e🔹 Description\u003c\/h3\u003e\u003cp\u003eThe Crown 135MA is a compact commercial mixer-amplifier engineered for paging, background music, announcements, and music-on-hold systems in restaurants, retail stores, offices, warehouses, cafés, schools, hospitality facilities, and other commercial environments.\u003c\/p\u003e\u003cp\u003eIt combines three individually controlled audio inputs with a single \u003cstrong\u003e35-watt amplifier output channel\u003c\/strong\u003e, reducing the need for separate mixing and amplification equipment.\u003c\/p\u003e\u003cp\u003eInput 1 supports a balanced microphone or line-level source through a Phoenix-style terminal connector. Inputs 2 and 3 use stereo RCA connectors that combine stereo sources into mono, making them suitable for music players, streaming devices, tuners, and other background-music sources.\u003c\/p\u003e\u003cp\u003eThe amplifier supports standard \u003cstrong\u003e8-ohm speakers\u003c\/strong\u003e as well as distributed \u003cstrong\u003e70V and 100V speaker systems\u003c\/strong\u003e. This makes it suitable for both small single-room systems and commercial installations using multiple ceiling or wall-mounted speakers.\u003c\/p\u003e\u003cp\u003ePriority muting can be activated through VOX voice detection or an external priority switch, allowing announcements from Input 1 to automatically reduce the background-music level. Crown also includes 15V phantom power for compatible microphones, plus master bass and treble controls for final system adjustment.\u003c\/p\u003e\u003ch3\u003e🔹 Electrical Specifications\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 100–240V AC\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePhase:\u003c\/strong\u003e Single Phase\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFrequency:\u003c\/strong\u003e 50\/60 Hz\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 95W\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAmplifier Output:\u003c\/strong\u003e 35W\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOutput Channels:\u003c\/strong\u003e 1\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePower Type:\u003c\/strong\u003e Electric\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePower Supply:\u003c\/strong\u003e Universal internal power supply\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePower Connection:\u003c\/strong\u003e Standard IEC inlet\u003c\/p\u003e\u003cp\u003eThe rear panel confirms a universal \u003cstrong\u003e100–240V AC, 50\/60 Hz, 95W\u003c\/strong\u003e power requirement. Crown specifies a universal power supply with a line-voltage tolerance of approximately +15% and −20%.\u003c\/p\u003e\u003ch3\u003e🔹 Audio Output Specifications\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRated Amplifier Power:\u003c\/strong\u003e 35W\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLow-Impedance Speaker Output:\u003c\/strong\u003e 8Ω\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDistributed Speaker Outputs:\u003c\/strong\u003e 70V and 100V\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOutput Configuration:\u003c\/strong\u003e Single-channel mono\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePreamp Output:\u003c\/strong\u003e Phoenix-style balanced terminal\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNominal Line Output Level:\u003c\/strong\u003e 1V into 10 kΩ\u003c\/p\u003e\u003cp\u003eThe 8-ohm, 70V, and 100V output options allow the amplifier to operate with standard low-impedance speakers or commercial distributed-audio speaker systems.\u003c\/p\u003e\u003ch3\u003e🔹 Input Configuration\u003c\/h3\u003e\u003ch3\u003eInput 1\u003c\/h3\u003e\u003cp\u003eBalanced Phoenix-style connector\u003c\/p\u003e\u003cp\u003eSelectable microphone or line-level operation\u003c\/p\u003e\u003cp\u003ePriority input capability\u003c\/p\u003e\u003cp\u003eVoice-activated VOX muting\u003c\/p\u003e\u003cp\u003eExternal priority-contact connection\u003c\/p\u003e\u003cp\u003eSelectable 15V phantom power\u003c\/p\u003e\u003ch3\u003eInput 2\u003c\/h3\u003e\u003cp\u003eDual RCA unbalanced stereo-summing input\u003c\/p\u003e\u003cp\u003eIndependent front-panel volume control\u003c\/p\u003e\u003cp\u003eSuitable for background-music sources\u003c\/p\u003e\u003ch3\u003eInput 3\u003c\/h3\u003e\u003cp\u003eDual RCA unbalanced stereo-summing input\u003c\/p\u003e\u003cp\u003eIndependent front-panel volume control\u003c\/p\u003e\u003cp\u003eSuitable for background-music sources\u003c\/p\u003e\u003ch3\u003eTelephone \/ Music-on-Hold Connection\u003c\/h3\u003e\u003cp\u003eDedicated telephone music-on-hold output\u003c\/p\u003e\u003cp\u003eSelectable 8Ω or 600Ω operation\u003c\/p\u003e\u003cp\u003eIndependent telephone-output level adjustment\u003c\/p\u003e\u003cp\u003eCrown officially specifies one balanced microphone\/line input, two dual-RCA music inputs, telephone output, priority muting, and phantom power.\u003c\/p\u003e\u003ch3\u003e🔹 Audio Performance\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFrequency Response at 1W:\u003c\/strong\u003e 50 Hz–20 kHz, ±1 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExtended Frequency Response:\u003c\/strong\u003e 19 Hz–34 kHz, +0\/−3 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTotal Harmonic Distortion plus Noise:\u003c\/strong\u003e Less than 0.5% at rated power and 1 kHz\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTHD+N at 5W:\u003c\/strong\u003e Less than 0.1% at 1 kHz\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCrosstalk:\u003c\/strong\u003e Approximately −82 dB at 1 kHz\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePhantom Power:\u003c\/strong\u003e 15V DC\u003c\/p\u003e\u003ch3\u003eSignal-to-Noise Ratio\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMicrophone Input:\u003c\/strong\u003e Greater than 58 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLine Input:\u003c\/strong\u003e Greater than 60 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTelephone Input:\u003c\/strong\u003e Greater than 60 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInputs 2 and 3:\u003c\/strong\u003e Greater than 78 dB\u003c\/p\u003e\u003ch3\u003eInput Sensitivity\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eInput 1 – Microphone:\u003c\/strong\u003e 3mV\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInput 1 – Line:\u003c\/strong\u003e 800mV\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInputs 2 and 3:\u003c\/strong\u003e 400mV\u003c\/p\u003e\u003cp\u003eThese audio-performance specifications are published by Crown for the 135MA.\u003c\/p\u003e\u003ch3\u003e🔹 Dimensions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWidth:\u003c\/strong\u003e 12.6 in\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDepth:\u003c\/strong\u003e 9.6 in\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHeight:\u003c\/strong\u003e 4.2 in without feet\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApproximate Height with Feet:\u003c\/strong\u003e 4.5 in\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 8.2 lb\u003c\/p\u003e\u003cp\u003eThe Crown 135MA uses a compact half-rack-style chassis suitable for shelf, tabletop, cabinet, or rack installation with the appropriate optional mounting kit.\u003c\/p\u003e\u003ch3\u003e🔹 Construction\u003c\/h3\u003e\u003cp\u003eHeavy-duty black metal chassis\u003c\/p\u003e\u003cp\u003eBrushed black front control panel\u003c\/p\u003e\u003cp\u003eCompact commercial installation design\u003c\/p\u003e\u003cp\u003eFour individual front-panel rotary level controls\u003c\/p\u003e\u003cp\u003eThree source-level controls\u003c\/p\u003e\u003cp\u003eOne master-volume control\u003c\/p\u003e\u003cp\u003eSeparate bass and treble adjustments\u003c\/p\u003e\u003cp\u003eFront-panel signal and clip indicators\u003c\/p\u003e\u003cp\u003eFront-panel power control\u003c\/p\u003e\u003cp\u003eRear DIP-switch configuration bank\u003c\/p\u003e\u003cp\u003ePhoenix-style removable terminal connectors\u003c\/p\u003e\u003cp\u003eDual RCA audio inputs\u003c\/p\u003e\u003cp\u003eStandard IEC power inlet\u003c\/p\u003e\u003cp\u003eVentilated enclosure for heat management\u003c\/p\u003e\u003cp\u003eOptional rack-mounting compatibility\u003c\/p\u003e\u003ch3\u003e🔹 Key Features\u003c\/h3\u003e\u003cp\u003eThree independently controlled audio inputs\u003c\/p\u003e\u003cp\u003eSingle 35W commercial amplifier channel\u003c\/p\u003e\u003cp\u003eSupports 8Ω speaker systems\u003c\/p\u003e\u003cp\u003eSupports 70V distributed speaker systems\u003c\/p\u003e\u003cp\u003eSupports 100V distributed speaker systems\u003c\/p\u003e\u003cp\u003eBalanced microphone\/line input\u003c\/p\u003e\u003cp\u003eTwo dual-RCA music inputs\u003c\/p\u003e\u003cp\u003eAutomatic stereo-to-mono summing\u003c\/p\u003e\u003cp\u003ePriority muting through VOX\u003c\/p\u003e\u003cp\u003ePriority muting through an external switch\u003c\/p\u003e\u003cp\u003eSelectable 15V phantom power\u003c\/p\u003e\u003cp\u003eDedicated telephone music-on-hold output\u003c\/p\u003e\u003cp\u003eSelectable 8Ω or 600Ω telephone output\u003c\/p\u003e\u003cp\u003eIndependent telephone-output level control\u003c\/p\u003e\u003cp\u003ePreamp output for system expansion\u003c\/p\u003e\u003cp\u003eMaster bass and treble controls\u003c\/p\u003e\u003cp\u003eFront signal and clip indicators\u003c\/p\u003e\u003cp\u003eUniversal 100–240V power supply\u003c\/p\u003e\u003cp\u003eCompact commercial chassis\u003c\/p\u003e\u003cp\u003eSuitable for continuous installed-audio applications\u003c\/p\u003e\u003cp\u003eCrown recommends this model for installed sound, paging, background music, and music-on-hold applications.\u003c\/p\u003e\u003ch3\u003e🔹 Recommended Applications\u003c\/h3\u003e\u003cp\u003eRestaurants and cafés\u003c\/p\u003e\u003cp\u003eBars and lounges\u003c\/p\u003e\u003cp\u003eRetail stores\u003c\/p\u003e\u003cp\u003eOffice buildings\u003c\/p\u003e\u003cp\u003eWarehouses\u003c\/p\u003e\u003cp\u003eCommercial kitchens\u003c\/p\u003e\u003cp\u003eHotel public areas\u003c\/p\u003e\u003cp\u003eReception areas\u003c\/p\u003e\u003cp\u003eWaiting rooms\u003c\/p\u003e\u003cp\u003eSchools and training facilities\u003c\/p\u003e\u003cp\u003eMedical and dental offices\u003c\/p\u003e\u003cp\u003eHouses of worship\u003c\/p\u003e\u003cp\u003eConference rooms\u003c\/p\u003e\u003cp\u003eSmall paging systems\u003c\/p\u003e\u003cp\u003eBackground-music systems\u003c\/p\u003e\u003cp\u003eMusic-on-hold installations\u003c\/p\u003e\u003cp\u003eDistributed ceiling-speaker systems\u003c\/p\u003e\u003ch3\u003e🔹 Certifications and Compliance\u003c\/h3\u003e\u003cp\u003eCommercial installed-audio design\u003c\/p\u003e\u003cp\u003eFCC-compliant configuration\u003c\/p\u003e\u003cp\u003eUniversal power-supply design\u003c\/p\u003e\u003cp\u003eApplicable safety and conformity information should be confirmed from the complete product data label or the manufacturer’s declaration before making a specific UL, CE, or other certification claim in the final listing.\u003c\/p\u003e\u003ch3\u003e🔹 Manufacturing Information\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Crown Audio\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eParent Company:\u003c\/strong\u003e Harman International\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Crown\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e 135MA\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e Commercial Audio Series\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEquipment Type:\u003c\/strong\u003e Three-Input Commercial Mixer-Amplifier\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e China\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Tabletop, shelf, cabinet, or optional rack mounting\u003c\/p\u003e\u003cp\u003eThe rear panel identifies the unit as manufactured in China for Crown, a Harman International company.\u003c\/p\u003e\u003ch3\u003e🔹 Included\u003c\/h3\u003e\u003cp\u003eCrown 135MA commercial mixer-amplifier\u003c\/p\u003e\u003cp\u003eInstalled front control knobs\u003c\/p\u003e\u003cp\u003eInstalled rear Phoenix-style terminal connectors shown in the photos\u003c\/p\u003e\u003cp\u003eAttached low-voltage wires shown at the preamp-output connector\u003c\/p\u003e\u003cp\u003eUnit sold exactly as photographed\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIEC power cord is not shown and should be considered not included unless separately confirmed.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMicrophone, audio-source cables, speakers, and rack-mounting hardware are not included.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003e🔹 Testing Recommended Before Listing\u003c\/h3\u003e\u003cp\u003eConnect the amplifier to the correct AC power cable\u003c\/p\u003e\u003cp\u003eConfirm that the power indicator illuminates\u003c\/p\u003e\u003cp\u003eTest Input 1 in microphone mode\u003c\/p\u003e\u003cp\u003eTest Input 1 in line-level mode\u003c\/p\u003e\u003cp\u003eTest Inputs 2 and 3 through the RCA connectors\u003c\/p\u003e\u003cp\u003eTest all front input-level controls\u003c\/p\u003e\u003cp\u003eTest the master-volume control\u003c\/p\u003e\u003cp\u003eTest the bass and treble controls\u003c\/p\u003e\u003cp\u003eTest the 8Ω speaker output\u003c\/p\u003e\u003cp\u003eTest the 70V speaker output with a compatible speaker system\u003c\/p\u003e\u003cp\u003eTest the 100V output only with compatible equipment\u003c\/p\u003e\u003cp\u003eVerify the signal and clip indicators\u003c\/p\u003e\u003cp\u003eTest VOX priority muting\u003c\/p\u003e\u003cp\u003eTest external priority muting\u003c\/p\u003e\u003cp\u003eTest phantom-power operation\u003c\/p\u003e\u003cp\u003eTest the preamp output\u003c\/p\u003e\u003cp\u003eTest the telephone music-on-hold output\u003c\/p\u003e\u003cp\u003eInspect and properly terminate all rear wiring\u003c\/p\u003e\u003ch3\u003e🔹 Important Notes\u003c\/h3\u003e\u003cp\u003eUsed commercial audio equipment\u003c\/p\u003e\u003cp\u003eNormal cosmetic wear is visible\u003c\/p\u003e\u003cp\u003eExternal installation wires remain attached to one terminal\u003c\/p\u003e\u003cp\u003ePower cord is not visible in the supplied photos\u003c\/p\u003e\u003cp\u003eComplete operational testing is recommended\u003c\/p\u003e\u003cp\u003eRequires compatible speakers and proper output wiring\u003c\/p\u003e\u003cp\u003eDo not connect standard 8Ω speakers to the 70V or 100V terminals\u003c\/p\u003e\u003cp\u003eInstallation by an experienced commercial-audio technician is recommended\u003c\/p\u003e\u003cp\u003eSold as-is, where-is\u003c\/p\u003e\u003cp\u003eNo manufacturer warranty included\u003c\/p\u003e\u003cp\u003eShipping calculated at checkout\u003c\/p\u003e\u003cp\u003eLocal pickup available\u003c\/p\u003e","brand":"Crown Audio","offers":[{"title":"Default Title","offer_id":47835385528498,"sku":"CRO-S-AUD-1445","price":166.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/0326\/6226\/files\/6f3f3a2d-7599-442d-8aaf-a0ec817533322.jpg?v=1785930393","url":"https:\/\/oasis-restaurant-equipment.myshopify.com\/products\/cro-m-aud-0001","provider":"Oasis Restaurant Equipment","version":"1.0","type":"link"}