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49% OFF ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX 11,80€ 23,06€ View It

Overall:

BG535316542 21/09/2021

This amplifier made really good job, i can only recommend it. Sound quality is pretty good. I am only bit scared from cooling, if it really has 200 Watts in total, there will be probably needed additional fan from side maybe.

Comments (3)

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BG145436251 140wmaximo
Reply 28/07/2023

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BG202311137 Ido a lot of testing, but I don't know how to test for power output, with said, I think it is very safe to assume, or infer, that the powers claimed are peak power, NOT RMS. So the unit is 20W for left and right channels, 50W to the sub, and you can likely only draw that level of power with speakers in the 4 to 6 Ohm range.
Reply 29/12/2023

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kuyadrei Hi where did you order this zk-tb21 i can't see any variant from my end. I only see zk-mt21.
Reply 22/01/2024

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