{"product_id":"4-channel-in-line-microphone-preamp-mic-gain-booster-25db-clear","title":"4 Channel In Line Microphone Preamp Mic Gain Booster - +25db Clear","description":"\u003cp\u003eIn this review of the 4 Channel In Line Microphone Preamp, the bottom line is simple: it is a compact, budget-friendly way to add +25db of clean gain to quiet dynamic and passive ribbon microphones for podcasting, streaming, and home studio work. The reviewer found the unit effective at rescuing low-output mics like the SM7b without introducing noticeable hiss or coloration, thanks to a claimed distortion below 0.02% and a 90db signal-to-noise ratio. It requires +48V phantom to power the unit itself but does not pass phantom on to the connected mics, so it is not suitable for condenser microphones.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e+25db clear gain:\u003c\/strong\u003e Raises low-output dynamic and ribbon microphones to usable levels for interfaces and mixers without obvious distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow distortion:\u003c\/strong\u003e Claims less than 0.02% distortion, which helps preserve the natural tone of voices and instruments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh signal-to-noise:\u003c\/strong\u003e The 90db SNR design keeps background noise low so boosted signals remain clean for recording and streaming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour XLR inputs:\u003c\/strong\u003e Multi-channel capability allows four mics to be boosted at once for small roundtable podcasts or multi-mic streams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not pass phantom power:\u003c\/strong\u003e Requires +48V to operate but protects passive mics and ribbons by not sending phantom to the mic outputs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe preamp is best for podcasters, live streamers, and home studio owners who use low-output dynamic microphones such as the SM7b or SM58 and need an affordable inline gain solution before an audio interface or mixer. Its four-channel layout is handy for small multi-person setups where each mic needs consistent gain.\u003c\/p\u003e\u003cp\u003eIt is not designed for users who rely on condenser microphones that require phantom power at the microphone; because the unit does not pass phantom to the mic, condensers will not be powered by this device and should look elsewhere for a preamp that provides mic phantom pass-through.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProvides a useful +25db gain lift for quiet dynamic and passive ribbon mics.\u003c\/li\u003e\n\u003cli\u003eClean performance with low distortion and a high SNR for minimal added noise.\u003c\/li\u003e\n\u003cli\u003eFour XLR inputs allow simple multi-mic setups without extra boxes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRequires +48V phantom to power the unit itself but does not supply phantom to condenser microphones, limiting use with condensers.\u003c\/li\u003e\n\u003cli\u003eBasic feature set with no tone shaping or additional controls for advanced users.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain\u003c\/td\u003e\n\u003ctd\u003e+25db\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDistortion\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.02% (claimed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-noise ratio\u003c\/td\u003e\n\u003ctd\u003e90db\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e10 - 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e4 XLR inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower requirement\u003c\/td\u003e\n\u003ctd\u003e+48V phantom (unit powered, does not pass to mics)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2-year warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 4 Channel In Line Microphone Preamp is a practical, cost-effective solution for anyone needing transparent gain for low-output dynamic or passive ribbon microphones. It delivers usable +25db boost with low distortion and high SNR, making it good value for podcasters and home studio users who do not require phantom pass-through or advanced preamp features.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan I use condenser microphones with this preamp?\u003c\/strong\u003e\u003cbr\u003eNo. The unit needs +48V to operate but will not pass phantom power to connected microphones, so condenser microphones that require phantom will not be powered.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I connect the preamp in my setup?\u003c\/strong\u003e\u003cbr\u003eConnect microphone \u0026gt; mic preamp \u0026gt; audio interface or mixer using standard XLR cables so the preamp provides gain before the interface.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this suitable for SM7b and similar mics?\u003c\/strong\u003e\u003cbr\u003eYes. The +25db boost and low noise design make it well suited to SM7b and other low-output dynamic or passive ribbon mics.\u003c\/p\u003e","brand":"Rodyweil","offers":[{"title":"Default Title","offer_id":48204098339035,"sku":"B0CF9QV6VN","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61Re_svlNWL._AC_SY300_SX300.jpg?v=1770220538","url":"https:\/\/gearmusthave.com\/products\/4-channel-in-line-microphone-preamp-mic-gain-booster-25db-clear","provider":"GearMustHave","version":"1.0","type":"link"}