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ST21PRO bluetooth Digital Audio Power Amplifier Board 2.1 Channel 100Wx2 + 200W Subwoofer TPA3221 High-Power Advanced Sound Quality

ST21PRO bluetooth Digital Audio Power Amplifier Board 2.1 Channel 100Wx2 + 200W Subwoofer TPA3221 High-Power Advanced Sound Quality

Roymall C.o.

$20.29 /$32.93

4.81022

Shipping to: United States

Express: 7-12 business days

Standard: 15-25 business days

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$26.99 /$32.93

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Return Policy

Return items will be accepted within 40 days when is the date of receiving the goods. Customized items cannot be returned or exchanged. Items bought with an e-gift card are exchangeable only; refunds are not applicable.

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Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.

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We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.

1. Return & Exchange Policy

We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side. Final sales items or free gifts are not acceptable for a return. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier.
We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +447549870296

2.Refund Policy

You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment. Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +447549870296

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Specifications:

Product Name: bluetooth Digital Audio Power Amplifier Board

Product Model: XY-ST21PRO

Channels: 2.1 Channel

Output Power: 100W x 2 + 200W Subwoofer

Amplifier Chips: Dual-Core TPA3221

bluetooth Interface: IPEX interface for external antenna

Color Options: Black

Types Optional: Bare board / With shell / Potentiometer external connection

Features:

1. High Efficiency and Stability: The XY-ST21PRO utilizes dual-core TPA3221 amplifier chips, which are known for their high efficiency and stability. These chips ensure minimal power consumption while delivering high-definition sound quality, making them perfect for high-performance audio applications.

2. Enhanced Safety with Power Switch: This amplifier board comes with a built-in power switch, providing an added layer of safety for the user. The switch allows you to easily control the power supply, reducing the risk of electrical hazards.

3. Lossless Components for Superior Sound Quality: The use of high-quality, lossless components in the design of this amplifier ensures that sound quality is maintained. This makes it ideal for audiophiles who demand top-notch audio performance.

4. Independent High and Low Frequency Tuning: The amplifier board offers independent tuning for high and low frequencies, giving you the flexibility to adjust the sound to your preference. This feature makes it convenient to achieve the perfect audio balance for different types of music or soundtracks.

5. External bluetooth Antenna Interface: Featuring an IPEX interface, the XY-ST21PRO is equipped to connect an external bluetooth antenna. This enhances the bluetooth signal strength and range, ensuring a stable and uninterrupted audio transmission.

Package Included:

1 x Digital Audio Power Amplifier Board (Types Optional: Bare board / With shell / Potentiometer external connection )

Reviews(3)

5.00

Gatekeep

5.0

Works nicely, BT connected easily to my projector. Sound is crisp, not much perceptible distortion at higher volume. Suits the speakers I have well, need a sturdy 30V 600W+ PSU to get the best out of the amp, especially if you like to drive your bass hard.
Darek

5.0

Mały, przyjemny w odsłuchu wzmacniacz. Zaletą jest możliwość zasilania z zasilacza od laptopa. Trochę męczą 4 funkcje pod jednym przyciskiem.