{"product_id":"enhance-sound-jiayouy-4-band-eq-7545r-for-acoustic-guitars","title":"Jiayouy Guitar Pickup 4 Band EQ-7545R Preamp Equalizer - Natural","description":"\u003cp\u003eIn this review the Jiayouy Guitar Pickup 4 Band EQ-7545R is assessed as a practical, budget-friendly preamp for acoustic players who want more control over their amplified tone. The review finds it especially useful for players using piezo saddle pickups on standard acoustic and cigar box guitars, because its \u003cstrong\u003e4-band equalizer\u003c\/strong\u003e plus volume offers quick, surgery-free shaping of bass, middle and treble while the built-in battery box and included end pin jack make installation straightforward.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Band Equalizer:\u003c\/strong\u003e Four frequency bands let you push bass, middle and treble independently so you can dial in fuller low end or clearer highs without changing your guitar setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-wired Assembly:\u003c\/strong\u003e The unit comes pre-wired with a 2.5mm connecting plug and parts included, which shortens the installation time and reduces the need for soldering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Battery Holder:\u003c\/strong\u003e The supplied battery box accepts a 9V cell so the preamp is self-contained and can be mounted inside the guitar cavity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnder Saddle Pickup Compatibility:\u003c\/strong\u003e Designed for an under the saddle piezo pickup, it works well for standard acoustic and cigar box guitars to deliver responsive string-to-string dynamics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Indicator LED:\u003c\/strong\u003e The LED battery check warns when the cell needs replacing, helping avoid tone loss during a performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis preamp is a good match for acoustic players who need a simple, effective onboard EQ to shape their amplified tone without a complex external rig. It suits DIY installers and local giggers who value quick setup, a clear frequency response and the ability to boost presence or warmth on stage.\u003c\/p\u003e\n\u003cp\u003ePlayers who need advanced onboard features like feedback suppression, mid-shift shelving, or a built-in tuner should look elsewhere; similarly, those seeking boutique branded electronics with premium components may prefer higher-cost preamps. For straightforward tone control on a budget, this unit is well suited.\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\u003eVery easy to install thanks to pre-wired connections and a supplied end pin jack and mounting hardware.\u003c\/li\u003e\n\u003cli\u003eEffective tonal shaping from the \u003cstrong\u003ebass, middle and treble\u003c\/strong\u003e controls with clear string response noted by users.\u003c\/li\u003e\n\u003cli\u003eGood value: customers report it sounds great for the price and works well with small practice amps and CUBE-style speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDoes not include the 9V battery, so you must provide one; replacement is straightforward but worth noting.\u003c\/li\u003e\n\u003cli\u003eConstruction and components are functional rather than high-end, so players seeking boutique tone may prefer a premium unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePresence Control\u003c\/td\u003e\n\u003ctd\u003e12dB at 8KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass \/ Middle \/ Treble\u003c\/td\u003e\n\u003ctd\u003e12dB: Bass 600Hz, Mid 600Hz, Treble 2.2KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e10MOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20Hz - 20KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e9V cell (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Jiayouy 4 Band EQ-7545R is a practical, affordable preamp that gives acoustic players reliable onboard tone control and easy installation. It is best for gigging or practicing musicians who want to shape their piezo signal simply and affordably, offering strong value for those who do not require boutique features.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with a battery?\u003c\/strong\u003e\u003cbr\u003eNo, the unit requires a 9V battery which is not included; the supplied battery holder makes installation easy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit a cigar box guitar?\u003c\/strong\u003e\u003cbr\u003eYes, it is suitable for standard acoustic and cigar box guitars and works with under saddle piezo pickups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs installation difficult?\u003c\/strong\u003e\u003cbr\u003eInstallation is straightforward because the unit is pre-wired and includes an end pin jack, mounting screws and a sticky plate for mounting.\u003c\/p\u003e","brand":"Jiayouy","offers":[{"title":"Default Title","offer_id":46787515023579,"sku":"B095JNQ4K3","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51iCt-fhqjS._AC_SL1000.jpg?v=1747558071","url":"https:\/\/gearmusthave.com\/products\/enhance-sound-jiayouy-4-band-eq-7545r-for-acoustic-guitars","provider":"GearMustHave","version":"1.0","type":"link"}