Shipping Cost
Shipping Cost
Free Shipping
Shipping Policy
Shipping Policy
1. Refund if not delivered within 30 days
2. Refund if item is lost after shipping
3. Refund if item is damaged
Delivery Company
Delivery Company
International Shipping: USPS, FedEx, UPS, etc.
South Korea Shipping: CJ Logistics, Logen Express, Korea Post, etc.
Estimated Delivery Time
Estimated Delivery Time
USA: 7 - 21 days
USA: Average 14 days (80-90%)
Korea Delivery: 1 - 2 days (99%)
Return Policy
Return Policy
Free returns within 90 days of order
First return per order is free
Free return limit: Up to 5 times per month
Shipping fee refunded after customer return
Security Policy
Security Policy
Secure payments are made through world-renowned payment companies such as PayPal, Visa, and Mastercard. Your payment information will not be shared with any third parties.
Privacy Policy
Privacy Policy
Your personal information collected for payment and delivery will be securely protected during delivery and discarded after delivery is complete.
ST21PRO TPA3221 Bluetooth 5.0 2.1 Channel Power Audio Stereo Subwoofer Amplifier Board 100WX2+200W Treble and Bass Tuning AMP
ST21PRO TPA3221 Bluetooth 5.0 2.1 Channel Power Audio Stereo Subwoofer Amplifier Board 100WX2+200W Treble and Bass Tuning AMP
SPECIFICATIONS
Brand Name: HIFIDIY LIVE
Certification: None
Channels: 3 (2.1)
Choice: yes
High-concerned chemical: None
Maximum Power Per Channel: Above 200W
Origin: Mainland China
Package: Yes
semi_Choice: yes
Product Feature：
This is a 2.1-channel power amplifier with 5.2 Bluetooth function (no blocking signal within 10 meters), subwoofer + stereo function, which can adjust the subwoofer frequency and volume separately.
Separate adjustment of stereo channel treble frequency, bass frequency adjustment, volume control!
ST21 TPA3221 2.1 Channel digital power amplifier Bluetooth 5.2 100W*2+200W.
ST21 TPA3221
1. Bluetooth version: 5.2 (without sunscreen, 15 meters)
2. Output channel: 2.1 channel
3. Chip model: TPA3221*2
1. Working mode: class D
2. Static current: 60mA
3. Work efficiency: 90%
4. Audio input: support bluetooth, AUX analog signal, U disk / USB sound card
5. MAX output power : 100W*2+200W
6. Frequency response: 20Hz to 20KHz
7. Working voltage: DC12V - 30V
8. Recommended power voltage: DC24V
9. Fit speaker parameters: 4-8 ohms
10. Size: 112mm * 102mm * 28mm
11. Net weight: about 245g
Shipping Cost
Shipping Cost
Free Shipping
Shipping Policy
Shipping Policy
1. Refund if not delivered within 30 days
2. Refund if item is lost after shipping
3. Refund if item is damaged
Delivery Company
Delivery Company
International Shipping: USPS, FedEx, UPS, etc.
South Korea Shipping: CJ Logistics, Logen Express, Korea Post, etc.
Estimated Delivery Time
Estimated Delivery Time
USA: 7 - 21 days
USA: Average 14 days (80-90%)
Korea Delivery: 1 - 2 days (99%)
Return Policy
Return Policy
Free returns within 90 days of order
First return per order is free
Free return limit: Up to 5 times per month
Shipping fee refunded after customer return
Security Policy
Security Policy
Secure payments are made through world-renowned payment companies such as PayPal, Visa, and Mastercard. Your payment information will not be shared with any third parties.
Privacy Policy
Privacy Policy
Your personal information collected for payment and delivery will be securely protected during delivery and discarded after delivery is complete.
ST21PRO TPA3221 Bluetooth 5.0 2.1 Channel Power Audio Stereo Subwoofer Amplifier Board 100WX2+200W Treble and Bass Tuning AMP