{"product_id":"fosi-audio-mc331-bluetooth-2-1-channel-hybrid-tube-amplifier-with-vu-meter-subwoofer-output-and-compact-hi-fi-performance","title":"Fosi Audio MC331 Bluetooth 2.1 Channel Hybrid Tube Amplifier with VU Meter, Subwoofer Output, and Compact Hi-Fi Performance","description":"\u003cp data-start=\"169\" data-end=\"398\"\u003eThe Fosi Audio MC331 is a compact \u003cstrong data-start=\"203\" data-end=\"250\"\u003e2.1 channel hybrid tube Bluetooth amplifier\u003c\/strong\u003e that blends modern Class-D power with analog tube preamplification, delivering a warm and musical sound signature along with stylish visual appeal.\u003c\/p\u003e\n\u003cp data-start=\"400\" data-end=\"736\"\u003eIt features a \u003cstrong data-start=\"414\" data-end=\"462\"\u003etube preamp stage (typically 5654\/6J1 tubes)\u003c\/strong\u003e that adds subtle warmth and harmonic richness to the audio, paired with a \u003cstrong data-start=\"537\" data-end=\"564\"\u003eClass-D power amplifier\u003c\/strong\u003e for efficient, high-output performance. This combination makes the MC331 ideal for listeners who want a more “analog” character without sacrificing power and practicality.\u003c\/p\u003e\n\u003cp data-start=\"738\" data-end=\"922\"\u003eThe amplifier supports \u003cstrong data-start=\"761\" data-end=\"797\"\u003eBluetooth 5.0 wireless streaming\u003c\/strong\u003e and includes \u003cstrong data-start=\"811\" data-end=\"840\"\u003eRCA and 3.5 mm AUX inputs\u003c\/strong\u003e, allowing flexible connection to smartphones, DACs, TVs, and other audio sources.\u003c\/p\u003e\n\u003cp data-start=\"924\" data-end=\"1262\"\u003eDesigned as a \u003cstrong data-start=\"938\" data-end=\"952\"\u003e2.1 system\u003c\/strong\u003e, it includes both \u003cstrong data-start=\"971\" data-end=\"1030\"\u003estereo speaker outputs and a dedicated subwoofer output\u003c\/strong\u003e, along with adjustable \u003cstrong data-start=\"1054\" data-end=\"1097\"\u003esubwoofer volume and crossover controls\u003c\/strong\u003e for precise bass tuning. The front panel also features \u003cstrong data-start=\"1153\" data-end=\"1186\"\u003ebass and treble tone controls\u003c\/strong\u003e and a classic \u003cstrong data-start=\"1201\" data-end=\"1220\"\u003eanalog VU meter\u003c\/strong\u003e, enhancing both usability and aesthetics.\u003c\/p\u003e\n\u003cp data-start=\"1264\" data-end=\"1449\"\u003eWith its compact aluminum chassis and exposed tubes, the MC331 is perfect for desktop Hi-Fi setups, small living rooms, or users looking for both sound performance and visual character.\u003c\/p\u003e\n\u003chr data-start=\"1451\" data-end=\"1454\"\u003e\n\u003ch2 data-section-id=\"155rk9w\" data-start=\"1456\" data-end=\"1488\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1459\" data-end=\"1486\"\u003ePerformance Highlights:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1489\" data-end=\"1701\"\u003e• Hybrid tube + Class-D amplifier design\u003cbr data-start=\"1529\" data-end=\"1532\"\u003e• 2.1 channel output with subwoofer support\u003cbr data-start=\"1575\" data-end=\"1578\"\u003e• Bluetooth 5.0 + RCA + AUX inputs\u003cbr data-start=\"1612\" data-end=\"1615\"\u003e• Warm, musical sound with tube coloration\u003cbr data-start=\"1657\" data-end=\"1660\"\u003e• VU meter for real-time signal display\u003c\/p\u003e\n\u003chr data-start=\"1703\" data-end=\"1706\"\u003e\n\u003ch2 data-section-id=\"7p9fey\" data-start=\"1708\" data-end=\"1746\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1711\" data-end=\"1746\"\u003eWhy You Should Buy This Product\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1748\" data-end=\"2030\"\u003e• ⭐ Adds warm, analog-style sound to digital systems\u003cbr data-start=\"1800\" data-end=\"1803\"\u003e• ⭐ Combines aesthetics (tubes + VU meter) with functionality\u003cbr data-start=\"1864\" data-end=\"1867\"\u003e• ⭐ Supports subwoofer for full-range audio experience\u003cbr data-start=\"1921\" data-end=\"1924\"\u003e• ⭐ Flexible connectivity for modern and legacy devices\u003cbr data-start=\"1979\" data-end=\"1982\"\u003e• ⭐ Ideal for desktop and compact Hi-Fi setups\u003c\/p\u003e\n\u003chr data-start=\"2032\" data-end=\"2035\"\u003e\n\u003ch2 data-section-id=\"1j5qwet\" data-start=\"2037\" data-end=\"2056\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2040\" data-end=\"2056\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2058\" data-end=\"2418\"\u003e• Hybrid tube preamp (5654 \/ 6J1 tubes)\u003cbr data-start=\"2097\" data-end=\"2100\"\u003e• Class-D power amplification\u003cbr data-start=\"2129\" data-end=\"2132\"\u003e• Bluetooth 5.0 wireless streaming\u003cbr data-start=\"2166\" data-end=\"2169\"\u003e• RCA input + 3.5 mm AUX input\u003cbr data-start=\"2199\" data-end=\"2202\"\u003e• Stereo speaker outputs (binding posts)\u003cbr data-start=\"2242\" data-end=\"2245\"\u003e• Passive subwoofer output + pre-out\u003cbr data-start=\"2281\" data-end=\"2284\"\u003e• Subwoofer frequency and volume controls\u003cbr data-start=\"2325\" data-end=\"2328\"\u003e• Bass and treble tone controls\u003cbr data-start=\"2359\" data-end=\"2362\"\u003e• Analog VU meter display\u003cbr data-start=\"2387\" data-end=\"2390\"\u003e• Compact aluminum chassis\u003c\/p\u003e\n\u003chr data-start=\"2420\" data-end=\"2423\"\u003e\n\u003ch2 data-section-id=\"id1bjs\" data-start=\"2425\" data-end=\"2456\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2428\" data-end=\"2456\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2458\" data-end=\"2574\"\u003e\u003cstrong data-start=\"2458\" data-end=\"2469\"\u003eGeneral\u003c\/strong\u003e\u003cbr data-start=\"2469\" data-end=\"2472\"\u003e• Product Type: Hybrid Tube Bluetooth Amplifier (2.1 Channel)\u003cbr data-start=\"2533\" data-end=\"2536\"\u003e• Brand: Fosi Audio\u003cbr data-start=\"2555\" data-end=\"2558\"\u003e• Model: MC331\u003c\/p\u003e\n\u003cp data-start=\"2576\" data-end=\"2833\"\u003e\u003cstrong data-start=\"2576\" data-end=\"2599\"\u003eAudio \u0026amp; Performance\u003c\/strong\u003e\u003cbr data-start=\"2599\" data-end=\"2602\"\u003e• Amplifier Type: Tube preamp + Class-D power stage\u003cbr data-start=\"2653\" data-end=\"2656\"\u003e• Output Power:\u003cbr data-start=\"2671\" data-end=\"2674\"\u003e • Up to ~100W × 2 (stereo) + ~200W (subwoofer) @ 4Ω (varies by PSU)\u003cbr data-start=\"2742\" data-end=\"2745\"\u003e• Frequency Response: 20 Hz – 20 kHz\u003cbr data-start=\"2781\" data-end=\"2784\"\u003e• THD: ≤0.03%\u003cbr data-start=\"2797\" data-end=\"2800\"\u003e• Signal-to-Noise Ratio: ≥95 dB\u003c\/p\u003e\n\u003cp data-start=\"2835\" data-end=\"2930\"\u003e\u003cstrong data-start=\"2835\" data-end=\"2851\"\u003eConnectivity\u003c\/strong\u003e\u003cbr data-start=\"2851\" data-end=\"2854\"\u003e• Bluetooth: Yes (Bluetooth 5.0)\u003cbr data-start=\"2886\" data-end=\"2889\"\u003e• Wired Inputs: RCA stereo + 3.5 mm AUX\u003c\/p\u003e\n\u003cp data-start=\"2932\" data-end=\"3046\"\u003e\u003cstrong data-start=\"2932\" data-end=\"2943\"\u003eOutputs\u003c\/strong\u003e\u003cbr data-start=\"2943\" data-end=\"2946\"\u003e• Speaker Output: Binding posts\u003cbr data-start=\"2977\" data-end=\"2980\"\u003e• Subwoofer Output: Passive subwoofer terminals\u003cbr data-start=\"3027\" data-end=\"3030\"\u003e• Pre-Out: Yes\u003c\/p\u003e\n\u003cp data-start=\"3048\" data-end=\"3174\"\u003e\u003cstrong data-start=\"3048\" data-end=\"3060\"\u003eControls\u003c\/strong\u003e\u003cbr data-start=\"3060\" data-end=\"3063\"\u003e• Volume: Yes\u003cbr data-start=\"3076\" data-end=\"3079\"\u003e• Bass \/ Treble: Yes\u003cbr data-start=\"3099\" data-end=\"3102\"\u003e• Subwoofer Frequency: Yes\u003cbr data-start=\"3128\" data-end=\"3131\"\u003e• Subwoofer Volume: Yes\u003cbr data-start=\"3154\" data-end=\"3157\"\u003e• VU Meter: Yes\u003c\/p\u003e\n\u003cp data-start=\"3176\" data-end=\"3245\"\u003e\u003cstrong data-start=\"3176\" data-end=\"3185\"\u003ePower\u003c\/strong\u003e\u003cbr data-start=\"3185\" data-end=\"3188\"\u003e• Power Supply: External DC adapter (typically 24V–32V)\u003c\/p\u003e\n\u003cp data-start=\"3247\" data-end=\"3431\"\u003e\u003cstrong data-start=\"3247\" data-end=\"3268\"\u003ePhysical \u0026amp; Design\u003c\/strong\u003e\u003cbr data-start=\"3268\" data-end=\"3271\"\u003e• Chassis Material: Aluminum\u003cbr data-start=\"3299\" data-end=\"3302\"\u003e• Cooling: Passive (fanless)\u003cbr data-start=\"3330\" data-end=\"3333\"\u003e• Design: Exposed vacuum tubes + VU meter\u003cbr data-start=\"3374\" data-end=\"3377\"\u003e• Dimensions: Compact desktop size\u003cbr data-start=\"3411\" data-end=\"3414\"\u003e• Finish: Black\u003c\/p\u003e\n\u003chr data-start=\"3433\" data-end=\"3436\"\u003e\n\u003ch2 data-section-id=\"rizf6l\" data-start=\"3438\" data-end=\"3453\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3441\" data-end=\"3453\"\u003eIncluded\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3455\" data-end=\"3613\"\u003e• 1 × Fosi Audio MC331 Amplifier\u003cbr data-start=\"3487\" data-end=\"3490\"\u003e• 2 × Vacuum Tubes (pre-installed)\u003cbr data-start=\"3524\" data-end=\"3527\"\u003e• 1 × Power Adapter\u003cbr data-start=\"3546\" data-end=\"3549\"\u003e• 1 × Bluetooth Antenna\u003cbr data-start=\"3572\" data-end=\"3575\"\u003e• 1 × AC Power Cable\u003cbr data-start=\"3595\" data-end=\"3598\"\u003e• User Manual\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":52892760179007,"sku":"MC331","price":15999.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/5942\/1272\/files\/611aJMzhSPL._SL1500.jpg?v=1777727781","url":"https:\/\/audiomaxx.in\/products\/fosi-audio-mc331-bluetooth-2-1-channel-hybrid-tube-amplifier-with-vu-meter-subwoofer-output-and-compact-hi-fi-performance","provider":"Audiomaxx India","version":"1.0","type":"link"}