Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier: Enjoy Powerful Home Audio with Wireless Streaming

まいたん: 市販のアンプでは珍しい2.1chアンプです。パッシブとパワードサブウーファー両方に対応しており、クロスオーバー周波数の設定や音量の設定も可能です。これらの機能を搭載したモデルはAVアンプぐらいしかなく、映像やサラウンド機能が必要ない者にとっては貴重な選択肢だと思います。音質については概ね良質で、コストパフォーマンスは良いと思います。Bluetooth機能も便利です。トーンコントロールも有用でした。Bluetooth使用時にホワイトノイズが若干ありますが、スピーカーに耳を近づけないとわからないレベルなので特に問題ないかと思います。

Japan on Sep 26, 2023

Anderson House: Plugs right in, just works. The crossover covers a great spread, in the circuit after bass volume control. So you can adjust what sounds good for your speakers, and send the rest to the sub to munch on. The bluetooth doesn't auto-connect, you have to select it, which should be the standard. This replaced a different brand/model that would take over from earbuds, no matter the settings in my phone. We would have to power it off to disconnect. This one works as you'd expect. Great bluetooth range too. Very pleased with this unit, will likely buy more. Only downside- the terminals really aren't built for larger than about 16awg. I got 14awg in, but it wasn't pretty.

United States on Sep 24, 2023

J. TABOADA: Además de éste Fosi 30D Pro tengo el 30D y el 20A Pro con la fuente de alimentación de 48v.
Antes de comprar este tipo de mini amplificadores hay que tener claro el uso que le vamos a dar y a qué altavoces lo vamos a conectar para no llevarnos una decepción.
Lo primero que hay que saber es que la potencia suministrada no es la indicada en las características. En pruebas de laboratorio, éste modelo - con la fuente suministrada de 32v 5A- entrega 80w a 4 ohm, y 60w a 8 ohm. (Tiene capacidad de alimentarse también con una fuente de 36v, pero sólo vamos a conseguir un poco más, 70w a 8 ohm).
El 20A Pro trae la fuente de alimentación de 32v 5A y con ella entrega 70w a 4 ohm y 40w a 8 ohm; sin embargo, tiene capacidad de alimentarse con una fuente de 48v (que hay que comprar aparte): con ella llega a los 168w a 4 ohm y 106w a 8 ohm).
Si queremos mover unos altavoces un poco exigentes (por ejemplo los Elac Debut 5.2 -120w a 6 ohm- con los que probé los tres amplificador es), necesitaremos como mínimo éste 30D Pro o el 20A Pro; el 30D no tiene potencia suficiente para moverlos con soltura.
Otra característica interesante es que se le puede conectar un...

Spain on Sep 12, 2023

Davide Albiero: Di solito non recensisco mai prodotti ne qui su Amazon ne da altre parti ma questa volta mi sento in dovere di farla..

Avete presente quando comprate un prodotto e una volta che lo provate esclamate: “ca**o! Che roba!” ?
È proprio quello che esclamerete appena collegherete il mini (perché è davvero piccolo in relazione alle prestazioni) FosiAudio alle vostre casse e iniziate l’ascolto; qualità, potenza, dinamica.. c’è tutto.

Rapporto qualità/prezzo INARRIVABILE per qualsiasi altro prodotto della stessa fascia;
109€ circa (questo il prezzo in offerta a cui l’ho acquistato) che per un prodotto del genere è regalato.
Non troverete nulla di qualità paragonabile nemmeno spendendo il doppio del prezzo (senza esagerare).

Io lo utilizzo sulla tv con due diffusori da 8ohm , fra l’altro con una sensibilità di 86db, quindi poco efficienti ,e un piccolo sub passivo.

Dinamica esplosiva sia con i film che con la musica e Volume alto quanto basta per far bestemmiare i vicini.
Immagino il putiferio che potrebbe creare con una bella coppia di diffusori da 4ohm ad alta efficienza..

Provatelo,e l’unica cosa che vi passerà per...

Italy on Sep 04, 2023

BOBNAPATOR: Très facile à installer, canal subwoofer actif ou direct. Installation et connexion BT très simple;
je trouve que cela fait le JOB pour une installation modeste pour un PC ou une télé de salon. Pas hyper puissant, mais les voisins sont sensibles donc c'est bon.
C'est pas de la super HIFI, mais cela convient. je l'ai connecté sur de vieilles enceinte Kenwood 100W comme on n'en fait plus, (les voix passent très bien) et sur un caisson actif Yamaha, Pour les basses, il a facilement tendance à saturer, et à se perdre mais je ne fais pas de Boum boum, alors cela passe pour le surround de la télé. Il faut un peu tâtonner sur le réglage volume et fréquence de coupure. C'est suffisant, au regard du prix, et de l'encombrement..... Je suis satisfait. ce n'est pas un home cinéma, j'en ai plusieurs, mais cela consomme et cela prend beaucoup de place . alors que le FOSI est plus que discret et consomme très peu.

France on Aug 21, 2023

KirkKirk: Crystal clear sound on the two mids channel, any 2, 4 ohm speaker with around 150 watts output will work great. I using two 4 ohm LG stereo speakers from a system. I am able to get good mid bass from it as these speakers are in box. With this amp I am able to adjust my mid bass and treble to my liking. The amp could also power a Sub exceptional well. I purchase a 6 inch audiopipe sub(Audiopipe TS-CVR6 Subwoofer 6-inch Woofer 150 Watt Max 4 Ohm DVC 1.5” 4-Layer Dual Voice Coil BASV) and a 6 inch box. We wired the sub for 8 ohm resistance. The amp allows volume control of the sub and frequency. It hitting high and lows like a cinema. I set my sub volume to maximum and control the frequency to my liking. As with any integrated system the RCA inputs gives a higher power output. This small amp is very loud and clean. . . Good quality banana jack heighten the appearance. Bluetooth distance is very good and this is a amp I'll recommend for anyone who loves music.
Negative is the Amp get really hot but a small USB fan takes it down to room temperature. . .
If you leave the amp switch on the the amp remains hot. . . These is minor issues for me.

United States on Aug 15, 2023

J Cooper: It's great for the price, clear sound and bluetooth works well, but the issues are that the bluetooth can't be turned off, and anyone can connect to it without needing a code. You can't disable this without removing the antenna. The bluetooth also has a slight delay, so watching videos with it isn't great due to the lip sync.

It gets hot when left on without anything connected. Unsure how much power it draws like this but it clearly doesn't have any power save modes.

No balance control.

United Kingdom on Aug 01, 2023

José BonillaJosé Bonilla: I've been using this amp for 6 months on my PC, first just plugging it into an RCA to 3.5mm audio out, then plugging it to the Fosi K5 Pro (that one's still a story in progress, has some issues but they don't matter to the amp).

This amp can very easily and comfortably drive a pair of JBL Control 25AV and JBL Control 1 speakers. No clipping, no distortion, just pure sound with the knob at 50%. For small speakers like that, it is very good. I did not try the Subwoofer output, i actually bought it thinking i'd need a sub with my speaker setup, but both speakers have very nice bass already, and i'm not that much of a bass head so i will be skipping the sub. The BT connection is very nice, although i had to rig my own BT antenna since the one that came with the unit offered too much range. Still, it is always better to have more than to have less, and BT is easy to adapt to a shorter antenna run, so i had no issues with it. The unit definitely gets hot to the touch, but never too hot that it burns me (i can place my hand on the top and feel it is warm), and it is not like it would even get to start a fire if you put something plastic on top of it (i put my Kindle on top of it...

United States on Jul 22, 2023

daniel s. brasierdaniel s. brasier: Music is a huge and daily part of our lives. Because we don’t like to overdrive the living-room system just to also “light up” the kitchen area with sound, I’ve kept a small (homebrew) 18+18W amplifier and Minimus 77 speakers on top of our fridge for years. It was linked to the living-room system via a stereo audio isolation transformer, and a Bluetooth receiver with an audio switch. Unsightly, but it worked well and sounded nice. With a recent remodeling of the kitchen and living-room areas, a better-looking solution was required. With a 12x12 soffit running in an “L” shape above all of the kitchen cabinets, in-wall speakers were the obvious choice. We ordered a set of Dayton Audio ME625W in-wall 2-way units and as I will get into later, eventually added a Dayton Audio DCS165 subwoofer and quasi-matching grille, all via Amazon. (The Pyle and FOSI amplifiers mentioned here were also Amazon purchases.)
My first choice for a new small amp to power this was the Pyle PFA540BT unit with built-in FM radio and Bluetooth features. That unit was bought as an open box from Amazon. While plenty loud, it had a subtle but definite grating midrange distortion once warmed up that...

United States on Jun 10, 2021