Fosi Audio M03 TPA3255 200W Subwoofer Versterker Mini Monokanaal Audio Vermogensversterker voor Home Theater Volfrequent en SUB Bass Omschakelbaar met 32V/5A Voeding

Tres bon pour une subwoofer. Not very loud but very good detailed in low bass sound.I’am using this for a 15” Dayton sub using an 10A power supply instead the standard 5A.

Read reviews, bought the item with high expectation. But the sound output is weak. This amplifier is for active subwoofer, not for passive subwoofer. In short, this amplifier needs an amplifier.Update: After putting this amp aside for months, I recently found out that the "aux output of Aiyima A08 Pro" is the main culprit all along. I was wrong for pointing finger to this little champ. After feeding the right amount of power to its inputs, it rattles the windows. WOW...She deserves 5 Stars, not 3!

todo según lo esperado

This amp is all metal. The unit itself is not large.The power adapter is large so that is where most of the power is coming from. This makes it easier to hide and keeps the main unit smaller. The cable from the adapter to the wall plug is long and the cable from the adapter to the unit is also long so its easy to hide.The controls on the front are easy to understand and use. The rocker switches have a positive click in place. The knobs are smooth. The power LED is bright.The adjustable Sub Frequency is nice to fine tune your crossover frequency.The connectors in the rear are well labeled and the speaker terminals accepts bare wire (~12 AWG) banana plugs or spades.I connected this to a Boston Acoustics 12 inch passive subwoofer which had a blown plate amp. This drove the woofer fine, but the power is more suitable for a 8-10inch driver. Still punchy but not a lot of headroom. Output will depend on your speakers efficiency and resistance (2-8 ohm).No hum or feedback.note: this amp has a dedicated power switch, you have to physically turn it on and off - it will not automatically power on when an audio signal is sent like regular subwoofer amps do.

For the size, the sound is great :-)