What power supply should I use?

Use DC 9V center-negative power or a fresh 6F22 9V battery. Adapter and battery are not included. Do not use a 12V adapter, as incorrect voltage may damage the pedal. For best results, use a regulated, isolated pedal power supply.

Why does battery use require the INPUT jack?

For battery power, insert a 1/4-inch instrument cable into the INPUT jack to activate the circuit. Make sure the battery polarity is correct and the input/output cables are fully inserted. The LED lights red when the effect is active.

How should I connect the JF-04?

Connect your electric guitar to INPUT, then connect OUTPUT to your amplifier or pedalboard signal chain using standard 1/4-inch mono instrument cables. If you need any help with setup or use, send us a message through the Amazon order page.

How can I reduce hum, feedback, or unwanted noise?

High-gain distortion can magnify noise from guitar pickups, cables, amps, power supplies, daisy chains, or extreme Gain/Volume settings. Test Guitar→JF-04→Amp first with quality cables, moderate knob settings, and a regulated, isolated power supply.

What tone is the JF-04 designed for?

The JF-04 is designed for electric guitar high-gain distortion, from tight crunch to heavier rhythm and lead textures. It is not a clean boost or transparent overdrive. Bass can be connected, but the tone balance may differ from expectations.

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High Gain Distortion Guitar Pedal, Analog Circuit with Full Range Equalizer for Classic Rock to Heavy Metal Tones, True Bypass (JF-04)

Product ID: 415826143

Details

Brand
JOYO
Colour
Black
Item weight
380 Grams
Product dimensions
12L x 5.5W x
Style
High Gain

⚡11mA low current draw

🎛️Full range dual-band EQ

🛡️Durable aluminum alloy housing

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Description

🎸 Unleash your inner rock god with every stomp!

BUILT TO ROCK HARD - Rugged aluminum alloy chassis with vintage varnish finish for stage-ready durability.
COMPACT STAGE READY - Lightweight 380g pedal fits seamlessly on any pedalboard without compromise.
PLUG PLAY CONFIDENCE - Stable 9V power options with LED status indicator keep your sound consistent and noise-free.
PRECISION TONE SCULPTING - Dual-band EQ lets you carve mids and bass for that perfect rock or thrash sound.
VERSATILE HIGH GAIN DISTORTION - From classic AC/DC crunch to Metallica-level metal roar, dial your signature tone.

The JOYO JF-04 High Gain Distortion Pedal delivers authentic rock and metal distortion tones with a versatile dual-band EQ for precise sound shaping. Housed in a durable aluminum alloy casing, it offers reliable performance with low power consumption (11mA) and a compact design ideal for any pedalboard. Perfect for guitarists seeking everything from crunchy blues rock to aggressive thrash metal, this pedal is a must-have for serious tone hunters.

Specifications

ASIN	B01MU24EX0
Amperage	11 Microamps
Audio Output Effects	Distortion
Brand Name	JOYO
Color	Black
Connector Type	1/4 inch audio jack
Controls Type	Knob
Customer Reviews	4.2 4.2 out of 5 stars (592)
Hardware Interface	1/4-inch Audio
Included Components	Effect Pedal (Not included power supply or battery), User's Manual
Item Dimensions	12 x 5.5 x 5.5 centimeters
Item Dimensions L x W x H	12L x 5.5W x 5.5H centimeters
Item Type Name	Electric Guitar Electronics
Item Weight	380 Grams
Manufacturer	ShenZhen JOYO Technology
Manufacturer Contact Information	JOYO TECHNOLOGY CO., LTD; 2/F, Lushi Industry Building, District 28, Baoan, Shenzhen, 518101 CN; Tel: +86 755 29765381; Fax: +86 755 29765389
Manufacturer Part Number	031-0JF04-0019
Model Name	JF-04
Model Number	Manufacturer-JOYO-0JF04-0019US
Number of Items	1
Number of Packs	1
Power Source	Corded Electric, Battery Powered
Set Name	Rock/Heavy Metal
Signal Format	Analog
Sound Profile	Mid-High Focused
Style	High Gain Distortion
Unit Count	1 Count
Voltage	9 Volts (DC)

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B/.149

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Panama.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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