{"product_id":"fosi-audio-mc351-2-1-channel-integrated-amplifier-with-dac-vu-meter","title":"Fosi Audio MC351 2.1-Channel Integrated Amplifier with DAC \u0026 VU Meter","description":"\u003ch3\u003eFosi Audio MC351 2.1-Channel Integrated Amplifier with DAC \u0026amp; VU Meter\u003c\/h3\u003e  \u003cp\u003eBring powerful sound and vintage-inspired style to your home audio system with the Fosi Audio MC351 2.1-Channel Integrated Amplifier with DAC \u0026amp; VU Meter. Combining two Texas Instruments TPA3255 Class-D amplifier chips, a built-in digital-to-analog converter, and flexible wired and wireless connectivity, the MC351 offers an all-in-one solution for music enthusiasts looking to build a compact stereo or 2.1-channel audio system. With a manufacturer-advertised maximum output of up to 165 watts per channel for passive stereo speakers and 350 watts for a passive subwoofer at 4 ohms, the MC351 delivers flexible amplification for a variety of listening setups. Bluetooth 5.3, USB, optical, coaxial, and RCA inputs make it easy to connect your favorite music sources, while a classic analog VU meter adds a distinctive retro touch.\u003c\/p\u003e  \u003cp\u003eAt the heart of the MC351 are two Texas Instruments TPA3255 amplifier chips that provide efficient Class-D amplification for left and right speakers and a dedicated passive subwoofer channel. Unlike traditional stereo amplifiers that require a separate powered subwoofer, the MC351 features speaker-level subwoofer terminals that can directly drive a compatible passive subwoofer. This makes it an appealing choice for building an integrated 2.1-channel system without adding a separate subwoofer amplifier. Its dual-PCB layout helps separate input and output circuitry to reduce unwanted interference, while dual 4700µF capacitors and an extensive 100-fin heatsink support stable operation and consistent audio performance. The MC351 supports compatible 4–8-ohm speakers and operates with a DC power supply ranging from 24V to 48V.\u003c\/p\u003e  \u003cp\u003eDesigned for everyday convenience, the Fosi Audio MC351 offers five selectable audio inputs to accommodate both modern digital and traditional analog music sources. Bluetooth 5.3 with SBC and AAC codec support allows wireless audio playback from compatible smartphones, tablets, and computers. The USB digital audio input supports PCM playback up to 24-bit\/96kHz, while optical and coaxial inputs support resolutions up to 32-bit\/192kHz. A stereo RCA input provides connectivity for compatible CD players, external DACs, music streamers, and turntables equipped with a built-in or external phono preamplifier. A dedicated 3.5mm preamplifier output also provides flexibility for connecting powered speakers, a powered subwoofer, or an additional amplifier.\u003c\/p\u003e  \u003cp\u003eOne of the MC351's most distinctive features is its circular analog VU meter, which brings the nostalgic appearance of classic Hi-Fi equipment to a modern integrated amplifier. The responsive needle follows changes in the audio signal, providing a visual representation of your music as it plays. Five front-panel input indicators make it easy to identify the selected audio source, while a dedicated MODE button allows quick switching between Bluetooth, RCA, USB, optical, and coaxial inputs. Independent bass and treble controls feature center detents for straightforward tone adjustment, making it easy to customize the sound to suit your speakers, listening room, and musical preferences.\u003c\/p\u003e  \u003cp\u003eBuilt for convenient everyday listening, the MC351 features an automatic standby function that activates after approximately two minutes without an input signal, helping reduce power consumption when the amplifier is not in use. Its compact CNC-machined aluminum alloy enclosure features a finely sandblasted finish, seamless construction, and a durable all-metal design that fits naturally into desktop audio setups, compact entertainment centers, and dedicated listening spaces. Available with 32V\/5A or 48V\/5A power supply configurations, the MC351 offers flexibility for different system requirements. Whether you're streaming music wirelessly, enjoying your CD collection, or building a compact stereo system with a passive subwoofer, the Fosi Audio MC351 combines versatile connectivity, efficient amplification, and classic Hi-Fi styling in one convenient component.\u003c\/p\u003e  \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Fosi Audio\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MC351\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e 2.1-channel integrated amplifier with DAC, Bluetooth, and VU meter\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmplifier Class:\u003c\/strong\u003e Class-D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAudio Channels:\u003c\/strong\u003e 2.1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpeaker Configuration:\u003c\/strong\u003e Left and right passive stereo speakers plus one passive subwoofer\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmplifier Chips:\u003c\/strong\u003e Texas Instruments TPA3255 ×2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuilt-In DAC:\u003c\/strong\u003e Yes\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer-Advertised Maximum Output Power:\u003c\/strong\u003e 165W × 2 + 350W at 4 ohms\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum Stereo Speaker Output Rating:\u003c\/strong\u003e 165 watts per channel at 4 ohms\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum Passive Subwoofer Output Rating:\u003c\/strong\u003e 350 watts at 4 ohms\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePower Rating Note:\u003c\/strong\u003e Manufacturer maximum ratings; actual sustained and simultaneous output depends on speaker impedance, power supply, and operating conditions\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSupported Speaker Impedance:\u003c\/strong\u003e 4–8 ohms\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20Hz–20kHz (±0.5dB, user manual specification)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSubwoofer Output Frequency Range:\u003c\/strong\u003e 20Hz–250Hz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e At least 100dB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDynamic Range:\u003c\/strong\u003e At least 100dB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTotal Harmonic Distortion:\u003c\/strong\u003e 0.03% or less\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInternal Circuit Design:\u003c\/strong\u003e Separate input and output circuit board sections\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFilter Capacitors:\u003c\/strong\u003e 2 × 4700µF\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCooling System:\u003c\/strong\u003e Integrated 100-fin heatsink\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTotal Selectable Audio Inputs:\u003c\/strong\u003e 5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Input:\u003c\/strong\u003e Bluetooth 5.3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAnalog RCA Input:\u003c\/strong\u003e 1 stereo RCA pair\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOptical Digital Input:\u003c\/strong\u003e 1 × TOSLINK\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCoaxial Digital Input:\u003c\/strong\u003e 1 × coaxial S\/PDIF\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUSB Audio Input:\u003c\/strong\u003e 1 × USB digital audio connection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Modes:\u003c\/strong\u003e Bluetooth, RCA, optical, coaxial, and USB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum USB Audio Resolution:\u003c\/strong\u003e PCM up to 24-bit\/96kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum Optical Audio Resolution:\u003c\/strong\u003e PCM up to 32-bit\/192kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum Coaxial Audio Resolution:\u003c\/strong\u003e PCM up to 32-bit\/192kHz\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUSB Function:\u003c\/strong\u003e Digital audio data input; does not provide power to the amplifier\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Version:\u003c\/strong\u003e 5.3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Audio Codecs:\u003c\/strong\u003e SBC and AAC\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Wireless Range:\u003c\/strong\u003e At least 10 meters (approximately 33 feet) in an unobstructed environment\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBluetooth Antenna:\u003c\/strong\u003e External antenna connection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTotal Audio Output Types:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStereo Speaker Outputs:\u003c\/strong\u003e 1 stereo pair of binding-post terminals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePassive Subwoofer Output:\u003c\/strong\u003e 1 amplified speaker-level output\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePreamplifier Output:\u003c\/strong\u003e 1 × 3.5mm analog pre-out\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePre-Out Volume Control:\u003c\/strong\u003e Adjustable using the main volume control\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePre-Out Tone Control:\u003c\/strong\u003e Bass and treble controls do not affect pre-out signal\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePre-Out Compatibility:\u003c\/strong\u003e Compatible powered speakers, powered subwoofers, or external amplifiers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePassive Subwoofer Compatibility:\u003c\/strong\u003e Supports compatible passive subwoofers through dedicated amplified terminals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpeaker Pairs Supported:\u003c\/strong\u003e 1 stereo pair\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpeaker A\/B Selector:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSubwoofer Channel:\u003c\/strong\u003e Dedicated amplified mono channel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVU Meter:\u003c\/strong\u003e 1 analog circular needle-style meter\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVU Meter Function:\u003c\/strong\u003e Displays changes in audio signal level during playback\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Indicators:\u003c\/strong\u003e 5 front-panel LED indicators\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Selection:\u003c\/strong\u003e Dedicated front-panel MODE button\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVolume Control:\u003c\/strong\u003e Front-panel rotary knob\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePower Control:\u003c\/strong\u003e Combined power switch and volume knob\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBass Control:\u003c\/strong\u003e Independent adjustable rotary knob\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTreble Control:\u003c\/strong\u003e Independent adjustable rotary knob\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTone Control Center Detents:\u003c\/strong\u003e Yes\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAutomatic Standby:\u003c\/strong\u003e Activates after approximately 2 minutes without an input signal\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInput Memory:\u003c\/strong\u003e Restores the previously selected input mode after restarting\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSupported DC Input Voltage:\u003c\/strong\u003e 24–48V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStandard Power Supply Configuration:\u003c\/strong\u003e 32V\/5A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOptional Power Supply Configuration:\u003c\/strong\u003e 48V\/5A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncluded Power Supply:\u003c\/strong\u003e 32V\/5A DC power adapter for the default version\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eChassis Material:\u003c\/strong\u003e Aluminum alloy\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eChassis Construction:\u003c\/strong\u003e CNC-machined integrated enclosure\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Finely sandblasted metal finish\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 7.28 × 5.0 × 2.24 inches (W × D × H)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApple AirPlay:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWi-Fi Connectivity:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuilt-In Network Music Streaming Services:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHDMI Inputs:\u003c\/strong\u003e 0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHDMI Outputs:\u003c\/strong\u003e 0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e12V Trigger Input:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e12V Trigger Output:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeadphone Output:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBuilt-In Phono Preamplifier:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRemote Control:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApp Control:\u003c\/strong\u003e No\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer Warranty:\u003c\/strong\u003e 24-month limited warranty\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Fosi Audio MC351 integrated amplifier, 32V\/5A power adapter, Bluetooth antenna, and user manual (standard configuration)\u003c\/li\u003e \u003c\/ul\u003e  \u003ch4\u003eWhat It's Great At\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePowerful 2.1-Channel Amplification:\u003c\/strong\u003e Two Texas Instruments TPA3255 Class-D amplifier chips provide dedicated amplification for passive stereo speakers and a compatible passive subwoofer, with manufacturer-advertised maximum output ratings of 165W × 2 + 350W at 4 ohms.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eVersatile Wired and Wireless Connectivity:\u003c\/strong\u003e Bluetooth 5.3, USB, optical, coaxial, and stereo RCA inputs allow easy integration with compatible smartphones, computers, CD players, DACs, and other audio sources.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eBuilt-In High-Resolution DAC:\u003c\/strong\u003e Digital audio playback supports PCM up to 24-bit\/96kHz through USB and up to 32-bit\/192kHz through optical and coaxial inputs, making it convenient to enjoy digital music without a separate converter.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eDedicated Passive Subwoofer Amplification:\u003c\/strong\u003e An independent speaker-level subwoofer output allows direct connection to a compatible passive subwoofer, eliminating the need for a separate powered subwoofer amplifier in many 2.1-channel systems.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eClassic Analog VU Meter and Customizable Sound:\u003c\/strong\u003e A responsive circular VU meter, five input indicators, and independent bass and treble controls combine vintage-inspired styling with convenient sound adjustments.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003ePremium Construction and Efficient Operation:\u003c\/strong\u003e A CNC-machined aluminum enclosure, dual 4700µF capacitors, 100-fin heatsink, and automatic standby after approximately two minutes of inactivity support reliable everyday performance.\u003c\/li\u003e \u003c\/ul\u003e  \u003ch4\u003eFAQ Section\u003c\/h4\u003e  \u003cp\u003e\u003cstrong\u003eQ: What is the Fosi Audio MC351 Integrated Amplifier?\u003c\/strong\u003e\u003cbr\u003e A: The Fosi Audio MC351 is a 2.1-channel integrated amplifier with a built-in DAC, Bluetooth 5.3, and analog VU meter. It is designed to power two passive stereo speakers and one compatible passive subwoofer while providing USB, optical, coaxial, RCA, and Bluetooth audio inputs for a variety of digital and analog music sources.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: How much power does the Fosi Audio MC351 deliver?\u003c\/strong\u003e\u003cbr\u003e A: Fosi Audio advertises maximum output ratings of 165 watts per channel for the stereo speakers and 350 watts for the passive subwoofer channel at 4 ohms. The amplifier supports 24–48V DC power supplies, with 32V\/5A and 48V\/5A configurations available. Actual output depends on the power supply, speaker impedance, and operating conditions, and the maximum ratings should not be interpreted as continuous simultaneous RMS output with the standard 32V\/5A supply.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Can I connect a passive subwoofer to the Fosi Audio MC351?\u003c\/strong\u003e\u003cbr\u003e A: Yes. Unlike many integrated amplifiers that only provide a line-level output for a powered subwoofer, the MC351 includes a dedicated amplified subwoofer channel with speaker-level binding posts. This allows it to directly drive a compatible passive subwoofer without requiring a separate subwoofer amplifier.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: What audio inputs does the Fosi Audio MC351 have?\u003c\/strong\u003e\u003cbr\u003e A: The MC351 includes five selectable input types: Bluetooth 5.3, USB digital audio, optical digital, coaxial digital, and stereo RCA analog. The front-panel MODE button allows you to switch between sources, while five LED indicators identify the currently selected input.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio MC351 support Bluetooth music streaming?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The MC351 features Bluetooth 5.3 with SBC and AAC codec support for wireless music playback from compatible smartphones, tablets, and computers. However, it does not include Wi-Fi, Apple AirPlay, Spotify Connect, TIDAL Connect, or other built-in network music streaming services.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Can I connect a powered subwoofer or an additional amplifier to the Fosi Audio MC351?\u003c\/strong\u003e\u003cbr\u003e A: Yes. In addition to its dedicated amplified passive subwoofer output, the MC351 includes a 3.5mm analog preamplifier output for compatible powered speakers, powered subwoofers, or external amplifiers. The pre-out level follows the main volume control but is not affected by the MC351's bass and treble adjustments.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio MC351 include a DAC and support high-resolution audio?\u003c\/strong\u003e\u003cbr\u003e A: Yes. The MC351 features an integrated digital-to-analog converter supporting PCM playback up to 24-bit\/96kHz through its USB input and up to 32-bit\/192kHz through its optical and coaxial inputs. This allows compatible computers, digital music sources, and CD transports to connect directly without requiring a separate external DAC.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eQ: Does the Fosi Audio MC351 have a remote control, 12V trigger, or HDMI connection?\u003c\/strong\u003e\u003cbr\u003e A: No. The MC351 does not include an infrared remote, dedicated 12V trigger input or output, or HDMI connectivity. Input switching, volume adjustment, and bass and treble settings are controlled directly through the front-panel controls. The amplifier also includes an automatic standby feature that activates after approximately two minutes without an input signal.\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":62887305969823,"sku":"FOS-MC351-32-BLK","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0495\/6910\/4031\/files\/f44a4db9-552f-48cf-981e-ff4a6f1d6d32.jpg?v=1791573545","url":"https:\/\/listenup.com\/products\/fosi-audio-mc351-2-1-channel-integrated-amplifier-with-dac-vu-meter","provider":"ListenUp","version":"1.0","type":"link"}