Rowin LEF-317B Bass EQ Pedal 5 Band Equalizer Pedals For Bass Guitar With 5 Band Graphic Mini Size True Bypass

Product OverviewRowin LEF-317B Bass EQ is a ultra-compact professional 5-band graphic equalizer specially tuned for electric bass guitar, the smallest dedicated bass graphic EQ pedal on the market, crafted for bassists of funk, metal, rock, jazz, reggae and pop genres.It adopts bass-targeted frequency points: 62.5Hz, 125Hz, 500Hz, 1kHz, 4kHz, each slider supports wide ±18dB boost/cut adjustment to precisely fix common bass tone problems: muddy low-end, hollow midrange, weak definition or harsh treble. The independent top MASTER VOLUME knob balances overall output volume after EQ sculpting, eliminating sudden volume jumps during tone switching.Solid die-cast zinc alloy mini housing takes minimal room on crowded pedalboards, perfect for bedroom practice, studio bass tone recording and long live stage tours. Built with industrial 3PDT hardwire true bypass circuit, it fully preserves your bass’s natural raw low-end response, zero signal loss, bass roll-off or artificial tone coloration when EQ is disengaged. Core Key Features5 Professional Bass-Specific Frequency BandsIndependent sliders optimized for bass frequency characteristics, each with ±18dB wide boost/cut range:62.5Hz: Deep sub-bass thickness, boost heavy rumble or cut muddy loose low end125Hz: Fundamental bass punch, fix boomy hollow boxy tone500Hz: Mid-low body & warmth, adjust thick growl for fingerstyle playing1kHz: Clarity & string definition, add articulation for pick & slap bass4kHz: Crisp treble snap, boost pop & attack for funk/slap linesIndependent Master VOLUME Control KnobSeparate overall output volume adjustment to match bass amp clean channel after EQ frequency shapingFull 3PDT Hardwire True BypassUnbroken direct instrument signal path, zero background hum, no low-frequency attenuation when pedal offClear White LED Working IndicatorBright light visible under dim stage lighting to confirm EQ active statusShockproof Silver Die-Cast Zinc Alloy HousingPalm-sized tiny footprint, scratch-resistant solid silver metal shell, anti-slip rubber bottom pad for stable pedalboard placementUltra Low Power ConsumptionOnly 5mA working current, fully compatible with standard 9V center-negative daisy-chain power suppliesFull Technical SpecificationsModel: LEF-317B BASS EQ Dedicated Bass 5-Band Graphic EqualizerBrand: RowinEffect Type: Mini Bass-Specific Graphic Equalizer PedalFrequency Bands (Bass Tuned): 62.5Hz / 125Hz / 500Hz / 1kHz / 4kHzAdjustment Range Per Band: ±18dB Boost / CutControls: 5 EQ Sliders + Top Master VOLUME KnobInput Jack: 1/4” mono audio jack, Input Impedance: 470K OhmsOutput Jack: 1/4” mono audio jack, Output Impedance: 1K OhmsWorking Current: 5mAPower Supply: DC 9V barrel adapter (center pin negative, outer barrel positive, adapter NOT included)Material: Die-Cast Zinc Alloy Metal ChassisDimensions: 95mm(D) × 45mm(W) × 53mm(H)Net Weight: 190g, Gross Weight (with gift box): 278gColor: SilverOEM/ODM Support: AvailableOperation InstructionsINPUT Jack: Connect your electric bass or output of another bass effect pedal with 6.3mm audio cableOUTPUT Jack: Connect to your bass amplifier or INPUT jack of another effect pedal via 6.3mm audio cableMASTER VOLUME Knob: Adjust overall output volume after EQ frequency correctionFive Bass EQ Sliders: Slide up (+) to boost target frequency, slide down (-) to cut unwanted frequency within ±18dB rangeTrue Bypass Footswitch: Step down the footswitch to toggle EQ ON / bypass OFF stateLED Indicator: Lights white when the bass equalizer effect is activatedPower Jack: Plug in DC 9V center-negative power adapter to supply power for the pedal1. Manufacturer & Business Entity InfoBrand Name: RowinManufacturer Factory: Rowin Audio Equipment Factory, Dongguan City, Guangdong Province, ChinaUS Selling Entity: Sole Proprietor Local Warehouse Operator (Irvine, California)Main Products: 300 series mini bass/guitar EQ, overdrive, distortion, modulation pedals, ABY signal switchers, DI Boxes, LEF multi-effect stompboxes, LFS looper & control footswitchesService Support: Retail sales, small bulk wholesale, OEM private custom logo service for global music instrument retailers worldwide2. Global Safety Compliance CertificationsFCC VOC (North American US Market): Compliant with US electromagnetic interference standards for audio electronic devicesCE Certification (EU & UK): EMC Electromagnetic Compatibility + LVD Low Voltage Safety CertificationRoHS Compliance: Restricts hazardous heavy metals inside circuit boards & metal housings3. Product Safety PrecautionsPower SafetyOnly use regulated DC 9V center-negative power adapter with minimum 500mA output. Mismatched voltage or reversed polarity will permanently damage internal analog circuit boards. Unplug power supply when unused or during thunderstorms to avoid surge voltage damage.Mechanical Operation SafetyDo not apply heavy force to footswitch, five EQ sliders, VOLUME knob and 1/4” audio jacks to prevent internal hardware failure. Unauthorized disassembly of the zinc alloy housing will void the 6-month limited warranty for pre-owned 95% like-new inventory.Cleaning & Storage RulesClean metal housing only with dry soft cloth; alcohol, chemical solvents, detergent or abrasive cleaners are strictly forbidden. Store pedals in cool dry indoor space, avoid long-term direct sunlight, humid air, violent vibration and heavy physical impact.Usage Environment WarningDo not operate this bass EQ pedal near water, rainy outdoor environments or high-power magnetic equipment to prevent audio signal distortion and short circuit risk.