KOOGO LEF-317A Guitar Equalizer Pedal 5-band Parametric EQ Guitar Effect Pedal Frequency Compensator ±18dB Range for Mini Size--Shipped from Irvine Warehouse in California by USPS

Product Overview

KOOGO LEF-317A GT EQ is one of the world’s smallest compact 5-band graphic equalizer pedals, tailor-made for electric guitar players of every musical genre including blues, rock, metal, country, funk and indie. It features five independent frequency sliders covering core guitar frequency bands: 100Hz, 250Hz, 630Hz, 1.6kHz, 4kHz, each slider supports wide ±18dB boost/cut adjustment to fully reshape your instrument tone. The top master VOLUME knob lets you balance overall output volume after EQ shaping, avoiding volume jumps when switching tones.

Solid die-cast zinc alloy ultra-mini housing occupies minimal space on crowded pedalboards, ideal for bedroom practice, studio tone sculpting and long live stage tours. Built with standard 3PDT hardwire true bypass circuit, it completely preserves your guitar’s raw clean tone with zero signal loss, bass roll-off or artificial tone coloration when the EQ effect is switched off.

Core Key Features

5 Professional Guitar Frequency Bands

Independent sliders for 100Hz / 250Hz / 630Hz / 1.6kHz / 4kHz, each with ±18dB wide adjustment range

100Hz: Control low-end thickness, cut muddy rumble or boost heavy warm bass

250Hz: Adjust mid-low punch, fix boxy hollow guitar tone

630Hz: Shape core body & warmth of rhythm guitar tone

1.6kHz: Add bite, clarity and definition for rhythm riffs

4kHz: Boost crisp treble, increase picking articulation for leads

Master VOLUME Control Knob

Independent overall output volume adjustment to match amp clean channel volume after EQ tweaks

Full Hardwire 3PDT True Bypass

Unbroken direct instrument signal path, zero hum, no signal attenuation when pedal disengaged

Clear White LED Working Indicator

Bright light clearly visible under dim stage lighting to confirm EQ active state

Shockproof Silver Die-Cast Zinc Alloy Housing

Palm-sized ultra-small footprint, scratch-resistant solid silver metal shell, anti-slip rubber bottom pad for stable pedalboard placement

Ultra Low Stable Power Consumption

Only 8mA working current, fully compatible with standard 9V center-negative daisy-chain power supplies

Full Technical Specifications

Model: LEF-317A GT EQ 5-Band Graphic Equalizer

Brand: KOOGO

Effect Type: Mini 5-Band Guitar Graphic Equalizer Pedal

Frequency Bands: 100Hz, 250Hz, 630Hz, 1.6kHz, 4kHz

Adjustment Range Per Band: ±18dB Boost/Cut

Controls: 5 EQ Sliders + Top Master VOLUME Knob

Input Jack: 1/4” mono, Input Impedance: 470K Ohms

Output Jack: 1/4” mono, Output Impedance: 1K Ohms

Working Current: 8mA

Power Supply: DC 9V center-negative barrel plug (adapter NOT included)

Material: Die-Cast Zinc Alloy Metal Chassis

Dimensions: 95(D) × 45(W) × 53(H) mm

Net Weight: 203g

Package Total Weight: 278g

Compliance Certifications: FCC VOC, CE EMC/LVD, RoHS Certified

Package Includes

1 × Rowin LEF-317A GT EQ 5-Band Equalizer Pedal

1 × English User Manual

1. Manufacturer & Business Entity Info

Brand Name: KOOGO

US Selling Entity: Sole Proprietor Local Warehouse Operator (Irvine, California)

Main Products: 300 series mini analog EQ/overdrive/distortion/modulation pedals, ABY signal switchers, DI Boxes, LEF series multi-effect stompboxes, LFS looper & control footswitches

Service Support: Retail sales, small bulk wholesale, OEM private custom logo service for global music instrument retailers worldwide

2. Global Safety Compliance Certifications

FCC VOC (North American US Market): Compliant with US electromagnetic interference standards for audio electronic devices

CE Certification (EU & UK): EMC Electromagnetic Compatibility + LVD Low Voltage Safety Certification

RoHS Compliance: Restricts hazardous heavy metals inside circuit boards & metal housings

3. Product Safety Precautions

Power Safety

Only 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 Safety

Do 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 Rules

Clean 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 Warning

Do not operate this EQ pedal near water, rainy outdoor environments or high-power magnetic equipment to prevent audio signal distortion and short circuit risk.