What does the JF-14 do, and does it replace a guitar amplifier?

JF-14 is an amp-simulation and tone-shaping pedal for electric guitar, covering clean to driven responses. It still needs a compatible amplifier, powered speaker, or interface; it has no built-in speaker, headphone, XLR, or USB output.

Why will the pedal not power on with a battery or adapter?

Insert a fully seated 1/4-inch mono plug into INPUT; this activates the power circuit, including battery mode. Use a fresh 6F22 9V battery or regulated DC 9V center-negative adapter, confirm polarity, and check whether the LED lights when engaged.

How do VOICE and DRIVE differ from the 3-band EQ?

DRIVE controls gain. VOICE changes the frequency and gain response and should be adjusted together with DRIVE. LOW, MID, and HIGH then refine the tonal balance, while LEVEL sets the final output. Start near noon and make small changes.

What should I check if there is no sound, hiss, buzz, or feedback?

Test JF-14 alone with one guitar, one amplifier, and two known-working cables. Confirm Guitar → INPUT and OUTPUT → Amplifier, fully inserted plugs, correct 9V center-negative power, and moderate settings. Also separate audio cables from power wiring.

Can I use JF-14 with bass, acoustic-electric instruments, microphones, or harmonicas?

JF-14 is voiced for electric guitar and accepts mono 1/4-inch instrument-level connections. Other sources may give different levels, tone, or feedback behavior. It is not a microphone preamp, DI box, headphone amp, or dedicated bass pedal.

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American Sound

Product ID: 498884409

Details

Brand
JOYO
Colour
Golden-orange
Item weight
390 Grams
Product dimensions
12L x 9.7W x
Style
Overdrive

🔊Built-in analog cab sim for direct PA/mixer hookup

🎛️6 precision knobs for ultimate tone control

🛡️Rugged aluminum alloy housing for road-ready durability

£56.62

Duties & taxes included

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Description

🎸 Own the stage with iconic American tube tones—no amp required!

BUILT TO ENDURE - Lightweight yet tough aluminum casing stands up to heavy pedalboard use and aggressive stomping.
TOTAL TONE SCULPTING - Level, Drive, 3-band EQ & Voice knob let you dial in your signature sound with surgical precision.
PLUG PLAY PRO SETUP - Integrated cab sim means no amp or mic needed—perfect for silent practice, studio, or gig backup.
TRUSTED QUALITY SUPPORT - Backed by JOYO’s decade of expertise and a dedicated support team to keep you playing worry-free.
LEGENDARY AMERICAN TUBE TONE - Authentically recreates iconic Blackface cleans & Tweed overdrive for that classic rock vibe.

The JOYO American Tube Amp Simulator & Preamp (JF-14) is a compact, road-ready guitar pedal that faithfully reproduces classic American tube amp sounds. Featuring 6 precision knobs including a versatile Voice control and a built-in analog cabinet simulator, it enables direct connection to PA systems or recording gear without an amp or mic. Housed in a durable aluminum alloy chassis, this pedal is designed for both studio and live performance, backed by JOYO’s trusted quality and support.

Specifications

ASIN	B085QJT4CT
Amperage	6 Microamps
Audio Output Effects	Overdrive
Best Sellers Rank	339 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 3 in Guitar Effect Pedals
Brand Name	JOYO
Colour	Golden-orange
Connector Type	1/4-Inch Right Angle, 1/4-Inch Right Angle to Straight, 1/4-Inch Straight
Controls Type	Knob
Country of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (955)
Hardware Interface	1/4-inch Audio
Included Components	Effect Pedal (Not included power supply or battery), User's Manual
Item Dimensions	12 x 9.8 x 5.5 centimetres
Item Dimensions L x W x H	12L x 9.7W x 5.5H centimetres
Item Type Name	Electric Guitar Effects
Item Weight	390 Grams
Manufacturer	ShenZhen JOYO Technology
Manufacturer Part Number	031-0JF14-0019
Model Name	JOYO American Sound
Model Number	Manufacturer-JOYO-0JF14-0019US
Number of Items	1
Number of Packs	1
Power Source	Corded Electric, Battery Powered
Product Warranty	1-year manufacturer warranty we stand behind the quality of our product. This warranty covers any manufacturing defects in materials or workmanship for one year from the date of purchase. If you encounter any issue, please contact us directly. We will provide a replacement, repair, or refund after we receive and verify the returned item.
Signal Format	Analog
Style	Overdrive,American
Unit Count	1 count
Voltage	9 Volts (DC)

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