{"product_id":"nvx-vadm4-v2-4-channel-class-d-amplifier-compact-high-power","title":"NVX VADM4 v2 4-Channel Class D Amplifier - Compact High-Power","description":"\u003cp\u003eOur review of the NVX VADM4 v2 finds it best suited for drivers and powersports owners who want a lot of usable power in the smallest footprint possible. The single biggest reason to consider this unit is its blend of compact Micro Class D design and reliable RMS output, which delivers clear power for four channels without demanding a bulky installation space. For anyone mounting an amp in tight quarters on a car, boat, UTV, or motorcycle, this amplifier stands out for its small size and marine-rated durability.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower delivery:\u003c\/strong\u003e Provides clean RMS power for four channels from 80 watts x 4 at 4 ohms up to 125 watts x 4 at 2 ohms, giving dependable headroom for full-range systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint:\u003c\/strong\u003e The Micro Class D design measures just 6.49 in x 3.3 in x 1.48 in so it can be mounted in tight locations where larger amplifiers will not fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-grade durability:\u003c\/strong\u003e A conformal coated circuit board adds protection from moisture and corrosion for use in marine and powersports environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable crossovers:\u003c\/strong\u003e Selectable FULL, HPF or LPF modes and variable filters from 40-400 Hz let installers tailor channel duties for speakers or subs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection and reliability:\u003c\/strong\u003e Built-in 4-way protection for thermal, overload, short and DC offset plus LED power\/protect indicators helps prevent and diagnose faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible inputs:\u003c\/strong\u003e Balanced differential and low-level RCA inputs allow clean integration with a variety of head units and signal sources.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis amp is ideal for hobbyists and installers who need a compact, marine-certified 4-channel amplifier that still delivers meaningful RMS power for small to medium speaker systems. It suits cars, trucks, boats, and powersports vehicles where space is limited but sound quality and durability matter.\u003c\/p\u003e\n\u003cp\u003eThose who need extremely high continuous power per channel, large multichannel home setups, or an amp without any reports of intermittent failures should consider larger or different designs; some users have reported mixed reliability in long-term operation, so buyers who require a trouble-free, high-mileage commercial installation may prefer alternatives with longer service history.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent power-to-size ratio for installations with limited space.\u003c\/li\u003e\n\u003cli\u003eMarine-rated conformal coating increases suitability for wet or salty environments.\u003c\/li\u003e\n\u003cli\u003eAdjustable crossover and balanced inputs make system integration straightforward and precise.\u003c\/li\u003e\n\u003cli\u003eLED indicators and 4-way protection add useful fault detection and safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report mixed functionality or intermittent failures, so occasional reliability concerns have been reported.\u003c\/li\u003e\n\u003cli\u003ePeak power marketing numbers can be misleading relative to continuous RMS output needs for very demanding systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eVADM4 v2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4-channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak power\u003c\/td\u003e\n\u003ctd\u003e800 Watts peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS power\u003c\/td\u003e\n\u003ctd\u003e80 W x 4 at 4 ohm \/ 125 W x 4 at 2 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e6.49 in x 3.3 in x 1.48 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover\u003c\/td\u003e\n\u003ctd\u003eSelectable FULL\/HPF\/LPF, variable 40-400 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003eConformal coated marine-grade circuit board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe NVX VADM4 v2 is a smart choice when size, power and marine durability are priorities; it delivers respectable RMS output for four channels and useful crossover flexibility in a very compact package. It represents strong value for enthusiasts and small-vehicle installs, though buyers should be aware of some customer reports of inconsistent long-term functionality.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this amp safe for marine use?\u003c\/strong\u003e\u003cbr\u003eYes, the VADM4 v2 uses a conformal coated marine-grade circuit board to resist moisture and corrosion for marine and powersports installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much power does it actually deliver?\u003c\/strong\u003e\u003cbr\u003eIt provides RMS ratings of 80 watts x 4 at 4 ohms and 125 watts x 4 at 2 ohms, with 800 Watts listed as peak power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it drive both speakers and a subwoofer?\u003c\/strong\u003e\u003cbr\u003eYes, selectable FULL\/HPF\/LPF modes and variable 40-400 Hz filters let you assign channels for full-range speakers or low-pass sub duties depending on the system layout.\u003c\/p\u003e","brand":"NVX","offers":[{"title":"Default Title","offer_id":48632403263707,"sku":"B07NGPND2F","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/812ujEPWe7L._AC_SL1500.jpg?v=1778512703","url":"https:\/\/gearmusthave.com\/products\/nvx-vadm4-v2-4-channel-class-d-amplifier-compact-high-power","provider":"GearMustHave","version":"1.0","type":"link"}