Rowin LEF-331 DI Box Pedal with Cab Simulator Gain Control Ground Lift XLR Balanced Output Mini Metal Guitar Direct Box

Product OverviewRowin LEF-331 is a compact professional micro DI box designed for electric guitar, bass and keyboard players for direct studio recording and live stage mixing board connection. It solves unbalanced high-impedance instrument signal matching issues, converts 1/4” instrument signal to balanced low-noise XLR output for long cable runs without tone loss. Built-in cabinet simulator recovers warm speaker cabinet tone when recording direct to audio interface without an amp. Equipped with adjustable gain, ground lift switch and true bypass circuit, ultra-small zinc alloy body saves pedalboard space for touring, bedroom recording and live gigs. Core Key FeaturesDual Output InterfaceUnbalanced 1/4” THRU: Pass raw signal to guitar amplifier simultaneouslyBalanced XLR Output: Send clean low-noise signal to mixing console / audio interface3-Position Gain Toggle Switch-20dB: Attenuate hot high-gain distortion signal to avoid clipping0dB: Standard clean instrument level for single-coil guitar+20dB: Boost weak passive bass/acoustic pickup signalBuilt-In Cabinet Simulator (Cab Sim ON/OFF)Activates realistic guitar cabinet frequency curve, eliminates thin flat direct-recording tone when tracking without speaker cabinetGround Lift Red ButtonEliminate hum, buzz and ground loop noise caused by different equipment grounding potentialsFull True Bypass CircuitWhen power off / bypass state, signal passes completely uncolored with no volume dropLow Distortion Analog CircuitHigh 1MΩ input impedance perfectly matches guitar/bass pickups, transparent full-frequency signal transmissionMini Shockproof Zinc Alloy HousingTiny footprint, lightweight scratch-resistant metal shell, stable for frequent stage transportationFull Technical SpecificationsModel: LEF-331 DI BoxBrand: RowinCircuit: Low-distortion analog DI circuitInput Jack: 1/4” unbalanced mono, Input Impedance: 1M OhmsTHRU Jack: 1/4” unbalanced mono parallel outputBalanced Output: 3-Pin XLR maleGain Options: -20dB / 0dB / +20dB switchableCabinet Sim: ON / OFF slide toggleGround Lift: Red push buttonPower Supply: DC 9V center-negative barrel plug (adapter NOT included)Working Current: 12mAMaterial: Zinc Alloy Metal ChassisDimensions: 93.5mm(D) × 42mm(W) × 52mm(H)Net Weight: 160gPackage Total Weight: 230gCompliance Certifications: FCC VOC, CE EMC/LVD, RoHS CertifiedPackage Includes1 × Rowin LEF-331 Mini DI Box Pedal1 × English User Manual1. 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: LEF series mini pedals, ABY switchers, DI boxes, looper, tuner, delay, reverb, modulation stompboxesService Support: Retail sales, small bulk wholesale, OEM private custom logo service for 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 DirectiveRoHS 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 circuit boards. Unplug power supply when the pedal is unused or during thunderstorms to avoid surge voltage damage.Mechanical Operation SafetyDo not apply heavy force to XLR port, 1/4” jacks, gain slider and ground lift button to prevent internal hardware failure. Unauthorized disassembly of the pedal housing will void the limited 6-month warranty for pre-owned 95% like-new inventory.Cleaning & Storage RulesClean zinc alloy 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 DI box near water, rainy outdoor environments or high-power magnetic equipment to prevent audio signal distortion and short circuit risk.