AC and DC are terms referring to power sources. Piezo refers to materials that produce an electrical current when disturbed by vibrations. In that respect, all sound reproductions are alternating but are not considered power sources. The most common of the piezo crystals are the fire-starters that create a spark when a trigger is pulled. The pickups shown in this question are discs that are glued or clamped onto soundboards or bridges of guitars to produce an acoustic guitar or drum amplification.

TIMESETL 15pcs Piezo Pickup 27mm Piezo Amplifiers Discs with 13" Leads for Acoustic Guitar Drum

TIMESETL 15pcs Piezo Pickup 27mm Piezo Amplifiers Discs with 13" Leads for Acoustic Guitar Drum

Q: Was wondering if these would be ok to be used on the underside of tap shoes between the tap and the shoe to pick up the sound?

It will pick up the the sound of almost anything but it has to be connected to an amplifier. Not sure how you would do that with shoes unless maybe using a wireless jack connection.

Q: how do you mount them?

I use double-sided tape. Use the thinnest tape you can find to minimize any cushioning effect that would degrade the response.

Q: do these generate electricity by pressure and mechanical stress?

I believe we need more information on the question. Either pressure applied to the sensor, either sound or mechanical causes internal stress on the piezo material inside creating the electrical output. If you are asking about external force being applied, it can be either air pressure or mechanical. The output voltage is a response level to the force applied, so the sound or air pressure response will be at much lower output level that if you physically impact the sensor. I hope this helps

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Product ID: 388011343

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Details

Colour
Brass
Brand
TIMESETL
Material
Alloy Steel
Model name
TIMESETL
Item dimensions L x W x H
18 x 5 x 1.5

⚡4.6 KHz resonant frequency

🎸27mm diameter piezo disc

🔌13" pre-wired leads

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TIMESETL 15pcs Piezo Pickup 27mm Piezo Amplifiers Discs with 13" Leads for Acoustic Guitar Drum

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Description

🎶 Elevate your sound game—don’t just play, resonate!

BUILT TO LAST - Durable, temperature-resistant brass and ceramic construction designed for long-term reliability.
PLUG PLAY SIMPLICITY - Pre-wired 13" leads make installation effortless—get your custom instrument sounding pro in minutes.
PRECISION SOUND CAPTURE - 27mm brass & ceramic discs deliver crisp, clear acoustic amplification.
VERSATILE CREATIVE TOOL - Perfect for acoustic guitars, electronic drums, DIY contact mics, and experimental sound projects.
HIGH SENSITIVITY LOW POWER - Optimized 4.6 KHz resonance with 300Ω impedance ensures vibrant, responsive sound with minimal energy draw.

The TIMESETL 15pcs Piezo Pickup set features 27mm brass and ceramic discs with 13" pre-wired leads, designed for high sensitivity acoustic amplification at a resonant frequency of 4.6 KHz. Lightweight and durable, these pickups are ideal for musicians and DIY enthusiasts seeking easy installation and versatile use across guitars, drums, and custom sound devices.

Specifications

Item weight	40 Grams
Body material	Brass
Included components	15 x Piezo Disc
Manufacturer	TIMESETL
UPC	611702525250
Connector type	1/4" jack
Item Weight	40 g
Product Dimensions	18 x 5 x 1.5 cm; 40 g
Item model number	TXJ-055-US
Color Name	Brass
Material Type	Alloy Steel
Size	φ27mm, wire length 33mm
Speaker Diameter	27 millimeters

Have a Question? See What Others Asked

Are they ac or dc?

Was wondering if these would be ok to be used on the underside of tap shoes between the tap and the shoe to pick up the sound?

how do you mount them?

do these generate electricity by pressure and mechanical stress?

Common Questions

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TIMESETL 15pcs Piezo Pickup 27mm Piezo Amplifiers Discs with 13" Leads for Acoustic Guitar Drum

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions