200W Mono Power Amplifier Board with 1943 + 5200 Toshiba Pair Tube and Wide Power Supply Range (20V-90V)

I’ve been using this Creatall AS21 amplifier for my home theater setup for a month, and it’s been fantastic! The build quality is top-notch—metal construction feels durable and premium. The TPA3255 chip delivers crisp highs, balanced mids, and deep, punchy bass that fills the room without distortion. Bluetooth 5.1 pairs quickly with my phone and smart TV, and the connection stays solid even through walls. I appreciate the multiple input options (AUX/USB/Bluetooth) that let me switch between devices easily. The protection features (overheat, short circuit) give me peace of mind for long-term use. The company’s customer service was responsive when I had questions about wiring, and the sample delivery was fast (arrived in 7 days as promised). For the price, it’s way better than some expensive brands I’ve tried—highly recommend for anyone looking for a reliable, high-performance amplifier!

The CA-TB21 amplifier board is top-notch. The audio is clear, Bluetooth connection is stable, and it’s easy to wire up with 12V power. It transformed my old speakers completely.

Perfect for my DIY project! I built a small bookshelf speaker for my study, and this module is exactly what I needed. The wide DC 8-18V input range is very convenient - I can power it with an old laptop charger. Sound is clear and crisp, no distortion at normal listening levels. It's compact and easy to wire, even for a beginner like me. Great product at a great price, arrived in Australia in 10 days.