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  • 02/06/2017

    Just received the (very) little SANWU 2x50 amp hooked it up on a small 12v/15 ah power adapter that i had from a old externel Harddisk back in the day..... Put my two old ( 12years) ELTAX 80 watt speakers on the receiving end as soon as the amp receives power it ( the build in) Bluetooth starts to blink red/blue in my SAMSUNG S4 phone the device can be seen under the name SANWU click on it to pair with it the blinking light goes a steady Blue you hear a short (not loud) beep to confirm the coupling started a song from Spotify and guess what? The music strats playing immediatly in a EXCELLENT real " Hifi" quality! Unit can get incredebly loud has very tight and low bass very flat and distortion free sound excellent stereo depth and with no hiss overall sounds like a real hifi amp should sound. I would know because i have been using very "high end" audio in the past like NAD Harman kardon musical Fidelity ( class A) so you can cook an egg on it and even a KRELL back in the day.....amazing what a couple of years and " globalisation" can do. So try this unit out even if your hifi buddies tell you that this cant be good trust me IT IS!

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  • 11/10/2017

    FANTASTIC POWER AMPLIFIER very well manufactured circuit, the bluetooth connected very easily with my phone. I powered the unit with 12Vdc and connected to the ouput terminals two 8 Ohms loudspeakers; after 30 minutes at normal listening volume the heatsinks were still cold. The sound quality is good and there is not evidence of distorsion at my listening volume. I will do some mesurements with my oscilloscope as soon as I can, but till now I am very impressed about the performances of this small amplifier. superb! circuito molto ben fatto, il bluetooth si è collegato molto facilmente con il mio telefono. Ho alimentato l'unità con 12Vdc e collegato ai terminali di uscita due altoparlanti da 8 Ohm; dopo 30 minuti a normale volume di ascolto i dissipatori erano ancora freddi. La qualità del suono è buona e non c'è alcuna prova di distorsione al mio volume di ascolto. Farò alcune misure con il mio oscilloscopio non appena potrò, ma finora sono molto impressionato dalle prestazioni di questo piccolo amplificatore. superbo!

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  • 09/01/2018

    Me sorprendió. Al principio me pareció que tenía poco alcance de Bluetooth y averiguando encontré que al agregarle un trozo de cable de antena (múltiplo de 125 cm) mejoró muchísimo yo le puse 25 cm. Lo probé con una fuente de notebook (195v) un transformador de 15v y una batería. Ver fotos

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  • 30/12/2019

    received in good condition. not yet try but happy with condition..

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  • 25/11/2019

    C'est la quatrième carte audio de ce modèle que j'achète, et je suis toujours aussi satisfait du produit. Dernière réalisation, un bureau intégrant un système audio bluetooth basé sur cette carte Sanwu. Projet réalisé avec des étudiants dans le cadre d'une recherche sur l'intégration des fonctions. Mon seul regret : qu'il n'y ai pas un connecteur pour déporter les boutons de commande, ce qui oblige à souder en parallèle des boutons poussoirs sur la carte.

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  • 30/10/2019

    Wonderful bluetooth amp! Has some buzz at high volume when nothing is being broadcasted via bluetooth but once something is being played is goes away. I built my first portable speaker in a off brand Pelican style case (waterproof) with two 3"(75mm) 30w rms 8 ohm speakers and a 5-1/4"(132mm) passive woofer. For power I have two 18650's in a 2s config. that go to a two way switch that then goes to the step up converter boosting to 13.8v which goes into this beautiful little board. I have to say that this setup sounds amazing with more than enough power to push the speakers and the bass is great! I would definitely recommend this board and will definitely do more builds in the future with it.

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  • 14/01/2020

    sinal de saída limpo Sem ruído quando está desligado ou não está a tocar música

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  • 18/08/2019

    perfect for portable bluetooth speaker i would recommend you all to buy it

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  • 12/10/2019

    good quality products...

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  • 04/09/2017

    Not much in the way of instructions. But I found out if you disconnect your Bluetooth source then hit the play button on the amp and in ten seconds it will notify you and start looking for a new source. Hope this was helpful

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