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The S350HS TPA3251 Bluetooth Power Amplifier Board delivers a robust 2.1 channel output with 220W per stereo channel plus a 350W subwoofer, supporting wide voltage input (12-38V). Featuring Bluetooth, AUX, and USB inputs, plus adjustable treble and bass controls, it offers versatile, high-fidelity sound customization. Built-in multi-layer protection ensures safe, reliable operation, making it a premium choice for audiophiles seeking powerful, flexible amplification.







| ASIN | B0CHF6MML7 |
| Best Sellers Rank | #23,999 in Electronics ( See Top 100 in Electronics ) #118 in Audio Component Amplifiers |
| Brand Name | DAJUNGUO |
| Customer Reviews | 4.3 4.3 out of 5 stars (189) |
| Global Trade Identification Number | 00194852393363 |
| Included Components | amplifier board |
| Item Dimensions | 5.9 x 5.15 x 1.02 inches |
| Item Weight | 327 Grams |
| Manufacturer | DAJUNGUO |
| Material Type | metal, plastic |
| Maximum Supply Voltage | 36 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Model | S350HS |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 220220350 Watts |
| Package Type Name | unassembled kit |
| Part Number | ZK-HT21 |
| Specification Met | CE |
| UPC | 194852393714 194852393363 |
| Voltage | 15 Volts (DC) |
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