Fosi Audio BT30D Pro Bluetooth Verstärker 2.1 Kanal

Für die Größe und den Preis macht das Teil richtig Banane. Der Klang ist überragend und er schiebt ordentlich nach vorne. Allerdings nur für kleine Räume geeignet. Nach 3-4 m nimmt der Sound schon sehr ab. Fazit: Nach einigen Monaten bei mir zu Hause kann ich sagen, das Teil läuft immer noch einwandfrei und der Klang ist immer noch spitzenmäßig. Nur seitdem ich anstatt zwei,4 4ohm Boxen an das Teil angeschlossen habe, die dann natürlich auf 8Ohm laufen, wird die Kiste schon ganz schön warm. Ich vermute, wenn man 2Ohm Boxen anschließt, wird das Ding kochen! Weiterlesen

My goal was to setup excellent sounding backyard garden speakers. First a quick story about what led me to this incredible Fosi amp. I found a terrific "all in one" setup from OSD Audio that was a Bluetooth capable powered outdoor subwoofer with 2 channel satellite powered outputs (can power up to 4 satellites total). I purchased 4 of the OSD Forza 4" satellites, which are AMAZING commercial grade outdoor speakers with separate woofer and tweeter in each speaker. The system sounded great until the speakers and sub started crackling and popping, even when nothing was connected. It turned out water penetrated the sub enclosure, the amp inside the enclosure was shorting out, and the OSD folks were fantastic about sending me a replacement. I setup the replacement and thoroughly enjoyed listening to the setup for over 5 hours the day I installed the replacement. The next morning I heard the same crackling and popping, AGAIN! This time I broke open the sub enclosure to figure out what went wrong, and the OSD plastic logo on the very top of the sub enclose is not sealed with silicone like the rest of the sub enclosure is sealed up. My sprinkler system, or almost daily rain we get here in New Orleans penetrated that weakness (water will ALWAYS find a way), and the amplifier sits immediately under the nameplate inside the enclosure and got really wet. Amazingly, the OSD folks were REALLY kind enough to send me another replacement, but this time I shared with them the cause of the malfunction, and hopefully they will seal that part up if you order from them. I received the new OSD replacement setup, put lots of silicone on top of that OSD nameplate on top of the sub enclosure, and put that setup by my pool, and no problems yet! I shared all of this because that 2nd replacement OSD sub that I broke open I repurposed by clipping off the internal wires of the amplifier, satellite speaker outputs, etc. and converted the OSD sub into a passive sub now needing power from another source, and naturally sealed it up really good with lots of silicone. I searched long and hard for "outdoor" 2.1 or 4.1 amplifiers and this Fosi seemed to check all of the boxes, except that it wasn't waterproof. I wanted to put a quality amplifier in an outdoor weatherproof box to avoid the issues I had with the OSD sub setup. After getting it all hooked up, and tuning the amp (adjusting bass, treble, sub crossover to blend w/ the satellites, sub volume, and amp volume I leave in the same position sealed up in the weatherproof box to use my phone's volume when connected via Bluetooth), this Fosi 30D Pro amp sounds every bit as good, if not better, than my home theater setup with $1,000 Yamaha receiver, Paradigm speakers, and $2,000 SVS subwoofer. I actually go sit in my backyard now to listen to my garden speaker setup over my home theater setup it sounds so well balanced and that good. I play music (piano and trumpet), and definitely have an "ear" for music, and this Fosi amp is the real deal, especially when connected to the right kind of high quality speakers. One shortfall about the amp when sealed up in the weatherproof box is that the amp only has a manual lever switch on the unit itself to turn it on or off. Obviously it's not a good idea to leave the amp "on" at all times, and it's very inconvenient to open the weatherproof box every time you want to turn the amp on or off. My solution was to connect the power supply cord of the Fosi amp to an extension cord (bought an outdoor cable cover to protect that connection), and plugged the end of the extension cord into a short extension cord that has an outdoor "on/off" switch, which is then plugged into an outdoor electrical outlet box. Now, whenever I listen to the garden speakers with the Fosi amp, I just walk over to the easily accessible electrical outlet and flip the switch to "on," and my Bluetooth on my phone finds the Fosi amp in no time to connect, and I'm enjoying beautiful, full, rich music...easy peasy! And when I'm finished listening, I just walk over to the switch by the outdoor outlet and flip it to "off." This way the Fosi amp is only "on" when I'm actively listening to it. Hopefully that trick will give it plenty of life! I'll put a link for all of these things below. Here is the box I purchased to house the amp and power supply outdoors: https://www.amazon.com/gp/product/B0CP5RL1PZ/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1 Here are the OSD Forza 4" satellite speakers I used for the system: https://www.amazon.com/OSD-Landscape-Mountable-Commercial-Resistant/dp/B0916DWXB5/ref=sr_1_2?crid=11056H4LSDN72&dib=eyJ2IjoiMSJ9.gXdDGu8oqU6XiOzDj8u_3rcA2hslL7UTIJmBiwG7-2hbrwNmy7k6LoCGQX15P6aautXVnUXHOW8BoAb_JmqIEb2bFIvZpUJ8T1ZWOvLHuwd3LDQPvNp6VHNJ-9AQlrunzEQWPpHtbrz0H-eBII_sl0FIgOVJnWu6vg6xTF7A6VKLvuDrKV8pffWRfNN1eoGQYeCVYvwJdTFHPFHNTHUf3gbmiawF4akuyNX8olshjtg.SEPJM2UZxVcC-f0JL_dDnT_TxCJ0EFLeuaDYJ76bdYQ&dib_tag=se&keywords=forza%2B4%2Bspeaker&qid=1719723606&sprefix=forza%2B4%2Bspeaker%2Caps%2C115&sr=8-2&th=1 Here is the passive outdoor sub I would recommend to use with the Fosi amp: https://www.amazon.com/Forza-Outdoor-Weather-Resistant-Subwoofer/dp/B07R3FCV5K/ref=sr_1_1_sspa?crid=C9VIY16QR2TA&dib=eyJ2IjoiMSJ9.-gZpe9alIyquiwEciwwy_th2Z8h9E_FxalkH-E3bEjzcdF4a1gSljKYLatMM1MxJovLfQGnJmGzyVY0k8KcsB_K5VPKrbtmKJCDpPPnrGADUW_5iXfCiSmPhH0aB1nxnLJU696Gp7y4pfE5CufG9q8rjA26q7mi03W09ruL-tgn6bejQo1-Eg7ghcqR41wmPvbJFHa5iNOSbiDJ5ZKTOzgmqbhdywOyYWyDDSnvB70g.svHb9CJqXcq5JPseVJzdJpKNc1FxKVsuKGJGk9x6V0w&dib_tag=se&keywords=OSD+outdoor+subwoofer&qid=1719723686&sprefix=osd+outdoor+subwoofe%2Caps%2C131&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1 Here is the outdoor "on/off" in-line switch on short extension cord: https://www.amazon.com/gp/product/B0BP7XL3MH/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&th=1 Here is the OSD "all in one" active / powered 8" subwoofer with powered satellite outputs if you're interested (remember to put silicone sealer on top of the OSD nameplate to really seal it well): https://www.amazon.com/dp/B089DTP3MX?ref=emc_p_m_5_i_atc&th=1 Weiterlesen

Y si es verdad, este pequeñín suena y suena bien, sin ruidos y levanta cualquier set de bocinas y con calidad, en verdad si jala excelente y buen trabajo de fosi Lo tengo jalando con set de medios JBL GTO y subwoofer skar de 10 pulgadas 200 watts a 2 ohms, sin problemas, agudos brillantes medios solventes y bajos buenos Ajuste a tu gusto, cuidado no pongan los ajustes a tope 75% max y con eso tienen sobrado volumen y ajustes Es muy bueno este mini, mas power comprale la fuente de 36v 5a Pero el que trae es muy solvente sin duda Weiterlesen

Bevor ich mir den Fosi Audio BT30D bestellte, lief bereit die kleinere Variante, der Fosi Audio BT20A, zwei Jahre beim mir problemlos. Mein Problem ist nur gewesen, daß meine Boxen zu wenig Bass, weswegen ich auf einen 2.1 Verstärker erweitern mußte. Der Fosi Audio BT30D Pro ist trotz seiner Leistung relativ klein und unscheinbar, so daß er auf dem Schreibtisch nicht auffällt. Die BT-Verbindung ist einfach und extrem stabil, das gilt sowohl für eine Connection zum PC als auch einem EchoDot. Ich muß sagen, daß Ergebnis ist phantastisch. Durch den separaten Regler für die Basslautsärke und die Cut-Off Frequenz habe ich nun den nötigen Wumms im Arbeitszimmer. Die Regler sind haptisch gut, aber etwas zu klein geraten für meine Hände. Aber das ist der Kompromiß, den man eingehen muß, wenn man einen Miniverstärker möchte. Ansonsten ist der Klang fabelhaft, wobei ich kein Hi-Fi-Enthusiast bin. Aber es gibt absolut kein Leerlaufrauschen oder andere Störgeräusche. Ich habe die Pro-Variante gewählt, weil man nur hier einen vollwertigen Pre-Out bekommt. Weiterlesen

Compared to the BT30D non-Pro, the Pro version is quite a bit longer and heavier (430g vs 620g). The knobs are made of aluminium, different texture compared to the no-pro, a bit more resistance to turn than the. Same throw switch used to power on. The 3.5mm PRE OUT is full range. Bluetooth will be always-ON so your neighbor can hijack your device just like the non-pro version. Remove the antenna to prevent this from happening if you don’t use BT. Come on Fosi Audio, please fix this. The amp has a 4” tall BT antenna, again it's better than the 7” incher of the DA2120C that looks like a CB radio... Please give us the 1 incher for future products, for once the smaller the better. BT uses an ATS2853 chip that is also found on the BL20A. How does it sound? I did a comparison with Onkyo RZ50 pure output mode (airplay), Aiyima T9 (BT), and the BT30D non-Pro (BT). All using RP5000F towers, with an amp selector switch. Right away there’s a BIG difference between the non-Pro and the rest. The Pro version is much more dynamic, the voices are clearer, bass is more present and punch harder. I honestly cannot tell any audible difference between the RZ50 and the BT30D Pro. The T9 sounds only a tad warmer (thx lamp); Even that it was really hard to tell and it depends on the song being played. The Pro version sounds definitely better than the non-Pro. To test the passive sub output, I hooked up my gutted Z2300 logitech subwoofer, it works wonderfully and has a very capable output. However, I didn't like the sub crossover control, the adjustment doesn't feel linear. There are no frequency indications on the knob, it can only be tuned by ears. The muscle: TPA3255 x 2: PSU idle voltage: 32.3V Power adapter output @ 8ohm load current and voltage, 125W: Same 32V5A adapter used for multiple models. No sparks occurred while plugging in the DC plug compared to the DA2120C I've tested, I made multiple attempts to make sure this is repeatable. Here I am trying to figure out the max usable volume before getting a bad shaped sine wave, The volume knob is at 3 o'clock, BT reference volume maxed out on my mobile device, no EQ, no tone. L & R Channel, 8 Ohm load, 1000hz tone, 26Wrms per channel L & R Channel, 8 Ohm load, 1000hz tone, clipping at 60Wrms L & R Channel, 4 Ohm load, 1000hz tone, 40Wrms per channel L & R Channel, 4 Ohm load, 1000hz tone, clipping at 100Wrms Sub channel @ 4 Ohm load, 75Wrms: Sub channel @ 4 Ohm load into clipping, 121Wrms: Noise, tested with max volume: BT30D non-Pro, audible hiss from speakers during powerup, circuit shuts off when no input signal for 5 secs to prevent constant hissing. BT30D Pro, barely audible hiss from speakers, you have to stick your ear on the tweeter to hear it. no circuit to shut off the signal, it's not needed because it is not audible sitting away from speakers. The TPA3255 chips are hungry AND efficient. If you can feed them, they will put out a respectable amount of power for its size. You can upgrade to a 36V power adapter if you are looking to squeeze more juice out of it. It seems most of the manufacturers using this chip have set their bottleneck to the power adapter. If you are looking for a 2.1 amplifier with passive sub output, look no further. The BT30D Pro is way better than the non-Pro version. Pros: Great build quality Excellent sound quality, to my ear it’s on par with the Aiyima T9 and RZ50 Low noise floor Runs cool and efficient Cons: Cannot turn BT off Sub frequency needs indication and more linear tuning Smaller BT antenna please Weiterlesen

Für mein ca.50qm Bereich viel mehr als ausreichend ! - Vorher zu 100% einen Marantz Verstärker mit 1k watt (80watt leerlauf) + 2x16 Ohm Satelliten & 1x 16 Ohm Subwoofer (Bose) benutzt. - Jetzt benuz ich zu ~80% diesen Fosi Audio BT30D Pro 2.1 Ampli. im wechsel mit dem Marantz (..ein paar watt im ideell (Top)) + 2x16 Ohm Stelieten & 1x 16 Ohm Subwoofer (Bose). Klang hört sich wie geschrieben echt "Gut" an. Die separate Einstellmöglichkeit der Hi&Lo-Pass für Links & Rechts ist sehr Konfortabl eingerichtet, dass gleiche für den Subwoofer (10v10 punkte). Potti Drehregler mit viel Drehweg, auch sehr gut zum fein einstellen (10v10 points) Sehr guter Breitbandiger Klang, 0.20- 20.0KHz IQ monitoring über ReasonStudio sieht und hört sich "Merklich" gut und "Breit" an (^^ sry, ich hoffe es wird verstanden (Klang ist auch ein Gefühl °_^ Lautsprecher Membran setup beachten)). Dauer Power Party Berieb werd ich wohl nicht testen können, aber zum Producen reichte es jetzt alle mal! Ty und Grüße Weiterlesen

Very good! Weiterlesen

نعم ممتاز Weiterlesen

Vorteile: - Günstig - Genug Leistung für private Zwecke Nachteile: - Bluetooth nicht deaktivierbar Zu Bluetooth: Gibt zwar keinen Schalter, aber ich habe anstatt der Antenne einfach einen 50-Ohm Widerstand an die Antennenbuchse gehängt, sodass meine eingeschränkten Nachbarn sich nicht immer mit dem Gerät verbinden. Leider priorisiert der Verstärker die Bluetooth-Verbindung über dem Aux-Input, sodass ich das Gerät gelegentlich neu starten musste, um fremde zu "entfernen". Zur Leistung: Keine Ahnung, was mit 165W x2+350W gemeint sein soll, aber wie schon einige andere Rezensionen erwähnt haben, hat das mitgelieferte Netzteil keine Chance, diese Leistung roh zu erreichen. Vielleicht sind damit die Angaben mancher Lautsprecher wie "Music Load" oder "Sinus Load" mancher Lautsprecher gemeint. Also eher im Sinne einer ungefähren Empfehlung, was man so anschließen sollte. Aber ich kenne ohnehin niemanden, der seine (größeren) Lautsprecher am Leistungslimit betreibt. Weiterlesen

Dieser kleine Power Verstärker ist schon Bombastisch, Klanglich Wirklich TOP 👍🏼, Verarbeitung auf sehr hohem Niveau, Bravo und das für grade mal 100€ Ein Ultra Schnäppchen!!! Eins vermisse ich bei diesem gerät: eine Digital Sound Prozessor für Effekte wie Pop, CAR, Theater, Rap, und Classic sowie Loudnes zum Beispiel !!! Vielleicht kann das via App auch die Streuung der Bluetooth Connection etwas Abhilfe schaffen: Antenne abschrauben damit keiner was dahin schickt ist fummelig! Sonst würde ich es direkt wider kaufen 5***** Weiterlesen