{"product_id":"mxr-mini-iso-brick-power-supply-guitar-effects-pedal-compact","title":"MXR Mini Iso-Brick Power Supply Guitar Effects Pedal - Compact","description":"\u003cp\u003eIn this review of the MXR Mini Iso-Brick Power Supply, the bottom line is simple: it is a compact, fully isolated power box built for players who need quiet, reliable power on small pedalboards. The reviewer found it ideal for guitarists who run a handful of pedals and want to eliminate ground-loop hum without sacrificing board real estate. Its claim to fame is the combination of five fully isolated outputs and a small footprint, making it a practical choice for travel rigs and tight setups while still offering a high-current option for power-hungry pedals.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully isolated outputs:\u003c\/strong\u003e Each of the five outputs is isolated to reduce ground-loop noise and preserve the integrity of the guitar signal during performances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour 9V outputs at 300mA:\u003c\/strong\u003e The four dedicated 9 volt outputs provide ample current for most compact analog and digital pedals used in small boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToggleable high-current output:\u003c\/strong\u003e The fifth output switches between 9V and 18V at 800mA, giving the flexibility to run higher-voltage or higher-current pedals without a separate supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace-saving footprint:\u003c\/strong\u003e The Mini Iso-Brick occupies less board area than a candy-bar style supply, making it a good fit for travel and minimalist rigs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplitter cable included:\u003c\/strong\u003e The supplied splitter cable lets you power two pedals that share the same voltage from a single output when needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe MXR Mini Iso-Brick is best for gigging guitarists and home players who maintain a small to medium pedalboard and prioritize noise-free power. If you run a curated set of four or five pedals and need an isolated solution that fits into a compact rig, this unit covers most typical stompbox combinations.\u003c\/p\u003e\n\u003cp\u003ePlayers who should look elsewhere include those with very large boards full of multi-ampers and rack units, or users who require many more outputs or specialized connectors beyond the five available. Also, musicians very sensitive to connection stability should verify fit with their pedal DC jacks since some users have reported occasional loose connections.\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\u003eQuiet, isolated outputs that effectively reduce ground-loop hum and preserve tone.\u003c\/li\u003e\n\u003cli\u003eCompact size saves pedalboard space without sacrificing useful output count.\u003c\/li\u003e\n\u003cli\u003eVersatile fifth output that switches between 9V and 18V at a high 800mA current for demanding pedals.\u003c\/li\u003e\n\u003cli\u003eIncluded splitter cable adds flexibility for powering two like-voltage pedals from one output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome customers report occasional loose connections, so check plug fit with your pedals.\u003c\/li\u003e\n\u003cli\u003eOnly five outputs may be limiting for larger boards that need many isolated feeds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMXR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eM239\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e5 fully isolated outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9V outputs\u003c\/td\u003e\n\u003ctd\u003eFour outputs at 9V, 300mA each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eToggleable output\u003c\/td\u003e\n\u003ctd\u003eOne output selectable 9V or 18V at 800mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded cable\u003c\/td\u003e\n\u003ctd\u003eSplitter cable to share one output between two like-voltage pedals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe MXR Mini Iso-Brick is a smart, value-oriented choice for players who need isolated, quiet power in a compact package. It pairs well with small touring boards and home rigs, offering flexibility with a high-current toggleable output and a useful splitter. For its size and functionality it represents good value, though users with very large pedal arrays should consider a supply with more outputs.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan the Mini Iso-Brick power vintage pedals that need 9V?\u003c\/strong\u003e\u003cbr\u003eYes, the unit provides four dedicated 9V outputs at 300mA each that are suitable for most vintage and modern 9V stompboxes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the 9\/18V output?\u003c\/strong\u003e\u003cbr\u003eThe fifth output can be toggled to 18V at 800mA for pedals that require higher voltage or more current, or set to 9V when a higher voltage is not needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it eliminate hum from pedal chains?\u003c\/strong\u003e\u003cbr\u003eThe fully isolated outputs are designed to remove ground-loop hum and significantly reduce noise compared with non-isolated supplies.\u003c\/p\u003e","brand":"MXR","offers":[{"title":"Default Title","offer_id":48612945494235,"sku":"B07KPM6QHT","price":105.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71rLkdaz-fL._AC_SL1500.jpg?v=1778588514","url":"https:\/\/gearmusthave.com\/products\/mxr-mini-iso-brick-power-supply-guitar-effects-pedal-compact","provider":"GearMustHave","version":"1.0","type":"link"}