Fosi Audio M01-BT Bluetooth 5.0 300 Watt Subwoofer Amplifier Home Theater Full-Frequency Mini Stereo Audio Hi-Fi Mono Power Amp with Bass Gain Control for Passive Subwoofer Speaker Bass Shaker

I have a Klipsch r-12SW that the amp just died on. Of course it is just out of warranty, so I ordered this hoping to at least get it working until I could upgrade. Little did I know that I had just upgraded. Now, to be fair, I don't know if the improvement I notice is because the included amp was slowly going bad and sound quality was going with it, or if this amp is just better. I tend to think it is the later, since the bass is noticeably tighter and less boomy than the it has ever been with this driver. I think this amp just provides a better, cleaner signal! Excellent product. Highly recommended!

Works great for my situation

FINALLY - An old school "RMS" power rating. 220w (RMS) at 4-ohms. Here is the kicker, it'll handle 2-Ohm loads with ease and likely over 300w at that impedance (if you run a 32v power brick). That is what I am doing and this amp will deliver. Running the two bottom Yamaha 18" cabs with this subwoofer amp. The main Bluetooth amplifier is a Fosi Audio BT-30D PRO (2.1 amplifier). I run the two top Yamaha cabs with that one. This combo is incredible and pumps out high levels of sound. In order to "really" uncork these digital chip amps -- feed them 32v. I am using two 32v AC/DC adapters on both of the amps with additional cooling (laptop computer cooling tray). This subwoofer amplifier def pushes out the power with a 32v power brick - more than I thought. I am running it with a 4-ohm load on those two Yamaha 18" subs. The amplifier never once has given up or gone into shut down mode. The "GAIN" control is kinda odd and has three click positions. It adds audible line noise, but gives this amplifier more pre-amp gain if needed (for really low SPL subwoofers to match sound levels of the main speakers) UPDATE (Jan, 2025) - Solid buy...this little amplifier is a true subwoofer amplifier with power that will surprise you. Granted, if you're into car audio and 3,000w amplifiers, this is not your thing. For everyone else, this little amp will def please. It sips power -- seriously great to just leave it on (no noise). I got another one! I like these -- can't wait for a 600w version

Was what was described to be.

I purchased this Nov 24,2024 I knew very little about compact amplifiers but I didn't want to get a big PA amplifier for my home theater in my den.The size is very compact,substantial amounts of power,I have it connected to a single 12" Memphis dvc 4 ohm subwoofer along with three other subs,1-(15") sub & 2(12") subs I have inside the den,my den is a fairly large room to accommodate this setup.I just had to balance out all of them to get an overall level of sound.I have the gain at about 10:00 on the Fosi amp,the gain knob is very strong so be careful.I just wish it came with a subsonic filter or a limiter.Your sub will move quite well. Overall the best choice I could ever make & saved me plenty of money from buying another P.A. amplifier. I'm feeling another type of sound I never thought possible.Update: I changed out the Memphis 12 subwoofer & box and switched to a NVX 12 dvc 4 sub & a Harmony Audio enclosure.I wired the NVX 12 sub to a two ohm impedance and it's not a problem for the Fosi Audio amplifier.The lower frequencies that the two ohm impedance presents is awesome in a home theater surround sound system environment.Movies,Music and Games take on a whole new life.The amplifier has been working out very well and stays cool.Great compact amplifier.Everyone should be at a lower impedance for subwoofers,treat yourself don't cheat yourself.

So I paired this with my Dayton Audio BST-300EX, 300 Watts RMS,Tactile Bass Shaker and that is attached to my computer chair with a surround sound speaker. This has taken all of my games and media to the highest level of wow I could ever ask for. There is nothing like taking down a large machine in Horizon Zero Dawn and Feeling every hit and then feeling the large hit to the ground when you take out your enemy : ) There is no way I would want to play games or watch shows without it. Super easy to set up and I paired this amp with a better power supply as I wanted to give it every chance of being a rock star. I cannot speak about the bluetooth part as I am not using that. But the amp has all the beans to do the job without every getting hot. It fits perfectly on my desk and I do not notice any type of noise. Zero disappointments, Tons of smiles

This amp rocks! If you want a powerful amp with lots of raw power, especially if pairing with a bass shaker look no further, this is for you! I'm using it to power a Dayton Audio 300EX (300 watt rms bass shaker transducer) mounted to my Gibralter drum throne. Delivers exactly the right amount of RMS watts to drive the extreme bass shaker, and the controls work as they should: FREQUENCY dial - set to around 9 o'clock approximately 80-100 mHz, there are no actual markings on dial positioning, so it would be nice to have vs having to estimate frequency cutoff. GAIN dial - can select between 3 settings/clicks, Low, Medium and High, again no markings, just 3 clicks to select from. VOLUME dial - again, markings, assuming 0-100% as you crank it up. Be cautious and increase or decrease. Volume and Gain settings, I personally noticed a big difference when it's cranked up to around 75-80% with the Gain set to 2nd or 3rd click - medium to high.

Was ok while it worked , was gonna order another one to see if maybe mine was just a defect but the price went up over night. So zero stars for that. Avoid this at all cost . Or you’ll be stuck with an expensive paper weight .

This unit was much better than the defect electronics unit. Just opened the box, cut the speaker wire and conecteed to this unit and then to the Marantz amplifier

bien emballé, marche bien avec mon sub Velodyne qui a grillé. Il est reparti pour 5 ans au moins. Tres simple a brancher . Ne pas mettre sur la sortie SUB mais bien sur une des 2 bornes rouge ou noir. pas de bruit, pas de chauffe ! parfait pour le prix. Livraison rapide

Sehr guter Verstärker. Betreibt einen alten großen Teufel sub der im Keller gefunden wurde. Hat ordentlich Leistung

el poderoso Fosi Audio M01-BT Amplificador de subwoofer Bluetooth 5.0 de 300 vatios Cine en casa, lo recibí en un par de días en muy buenas condiciones de empaquetado, sin daños, completo. lo conecto a la salida de subwoofer de un receiver Pioneer con cable de subwoofer de amazon basics, agregandole una "Y" de terminales RCA para que conecte las dos entradas RCA del FOSI amplificador. Utilizo el adaptador de corriente original que viene con el amplificador, en mi caso, después de pruebas de sonido y diversas fuentes y material grabado, no creo conveniente para mi consumo comprar otro adaptador para lograr el rendimiento pleno de este FOSI amplificador, es decir, me quedo con el voltaje y amperaje original ( 24 V A 4.5 AMP) que es el adaptador de corriente que viene con el aparato. He realizado dos semanas de pruebas con diferentes fuentes , varias horas, música, películas, y no existe hasta el momento ninguna alteración del desempeño del amplificador. He utilizado un termómetro láser y durante las sesiones de varias horas aumentó la temperatura del chasis de metal del FOSI 3 a 4 grados, o sea, se mantuvo fresco aun utilizándolo con todo el volúmen y las perillas de ganancia y sub frecuencia.Queda aclarar que el poder de despliegue de este aparato depende de los niveles de grabación de las fuentes originales. Lo he conectado a un shaker Dayton Audio BST-300EX, 300 vatios RMS, y la verdad excede mis necesidades como entusiasta de agregar sub frecuencias plenas y poderosas a mi música y películas. Queda agregar que estoy utilizando un amplificador pioner vsx 1130 7.2, un subwoofer yamaha de 250 watts. Queda aclarar que utilicé inicialmente su capacidad de tener incorporado un receptor bluetooth que funciona como se esperaba, para esto se tiene que enroscar la antena que viene dentro de los articulos de la caja original del FOSI . De igual forma , lo conecte a una bocina Polk para experimentar su capacidad de amplificador mono de frecuencia completa utilizando la conmutación PBTL que tiene el amplificador , disfrutando magnífico poder de este amplificador FOSI. Como conclusión por el momento, este mini amplificador de SUBWOOFER de clase "D", es un gran auxiliar para mis necesidades de sumar mas frecuencias SUB LOW poderosas que hacen temblar, vibrar, estremecer el entorno inmediato. Siendo igualmente un auxiliar interesante y prometedor para el entusiasta de los videojuegos al agregar mas realismo a sus sesiones. NOTA. COMPRÉ, POR MEDIO DE AMAZON, OTRA UNIDAD Fosi Audio M01-BT Amplificador de subwoofer Bluetooth 5.0 de 300 vatios EN enero de 2025. FUNCIONANDO HASTA EL MOMENTO PERFECTAMENTE Y MOVIENDO OTRO shaker Dayton Audio BST-300EX, 300 vatios CON RESULTADOS EXCELENTES.

Ampli piccolo e funzionale. Il filtro passa basso consente di pilotare direttamente un sub woofer passivo. Io piloto un 30cm senza problemi. Comodo il gain regolabile in ingresso per allineare i volumi con il sistema PRINCIPALE. se usato per riprodurre tutta la gamma mi è parso leggermente chiuso sugli alti (ma ho usato delle vecchie casse a 2 vie per tastarlo, quindi potrebbe dipendere anche da queste). Non scalda neanche se usato Per 1 ora a volume quasi massimo.