DollaTek Bluetooth Receiver Module AS1711BT DC 5-35V Wireless Portable Audio Receiver for DIY Home Stereo Headphones

I had an old ipod dock/speaker with no Bluetooth capability. It was pretty quick and easy to find a DC power line within that and hook this up. The wide voltage compatibility makes this much easier. The dock had an aux in so the audio connection was similarly easy. The only wrinkle in my plan was that the dock was supplying power continuously to the board so it grabbed my phone's Bluetooth connection wherever was nearby. I did not get a chance to listen critically to it since this was a pretty average speaker. And then that speaker died (of unrelated causes). But I like the ease of use, the thoughtful (e.g. different connection options for audio out) and quality build. I plan to use it again with an older NAD amp or possibly on a friend's old, non-Bluetooth car stereo. Low price makes it particularly easy to recommend.

I used this to add Bluetooth to a boombox with a line in input. After finding the input and voltages it was very easy, just a bit of soldering. Connected to the 9v supply and ground. Then left and right to the line input. It oscillates when connected directly when at high volume at the boombox. This was an impedance issue. I needed to lower the output signal anyway so added a 47kohm resistor on the output to the input and it works very well. No hissing noise that you may get from the digital part of the Bluetooth receiver can be hear at all, just whatever you are playing on Bluetooth. I connected the Bluetooth receiver via a 10mH inductor to the 9v supply, a "1W" size version that also has some 20 ohm resistance, voltage on device is 7V so it uses hardly any current with 47kohm output resistance. Pairing went well. To pair to another device, as usual, it should not see the previous device when you pair the new one. One caveat though, because of the chosen processor clock speed of 24MHz if you use it in a boombox you get a signal on 96MHz FM, 4th harmonic. Conclusion, it works well without additional noise, the output signal is higher that line in on most audio devices, it is easy to install/connect. It avoids having to have an exactly 5V supply, that saves so much hassle. Just mind the 96MHz.

Great little bluetooth audio module! I used it to give my car stereo bluetooth audio using the 3P connector and the sound quality is great. I especially like the buttonless on/off and connection functionality, I simply wired it into a 12v ignition-switched circuit and now it turns on and off with the stereo system, perfect! My only issues is the fact it also connects as a hands free calling device... this would be fine of there was a mic jack to utilise this feature of the chip but there is not. Luckily most phones (Inc. Mine) allow you to disable using a BT device for calls, so all is good there. 😅

A great little Bluetooth PCB that is stereo and powerful enough to run some headphones.

Imagine old amplifier from 1977 with high quality bluetooth... Golden era of HiFi is back, even more amazing then it was. Connection is quite simple, but need separate power source or B0505S-1W to avoid ground loop. If anyone need help with connecting it please write to me, I can explain and and help.

Good wee board it connects easily and works well right out of the package. Problem with noise/interference however, the board has a constant background buzz (~1600hz) when a signal is being outputted. This noise cuts off when the sound output is too low (ie a quiet part in a song) which makes it even more noticeable. I have tried the board on multiple power sources including a 9V battery and the results are consistent. I’d say it’s good for some wee projects but not for say a diy speaker/sound system as it damages audio quality.

Faultless performance easy to fit and connect

DollaTek Bluetooth receiver boards have been my go to for a long time as I do a lot of mods adding Bluetooth to amplifier, older radios and other. The sound is great, you have multiple power and output connector options and the on-board voltage stabiliser help in many occasions. If used correctly with the right ground connections, is a dead silent and great sounding unit.

Grande plage d'utilisation de l'alimentation

Ich habe dieses Bluetooth-Modul in ein aktives Lautsprechersystem integriert. Das Modul funktioniert zuverlässig und lässt sich problemlos mit einer stabilisierten 12 V-Versorgung betreiben. Die Audioqualität ist sauber, ohne hörbare Verzerrungen, und die Bluetooth-Verbindung ist schnell sowie stabil (getestet auf ca. 8–10 m Reichweite in Innenräumen). Ich habe zur Verbesserung der Stromversorgung zusätzliche Kondensatoren (100 nF + 1000 µF) direkt an den Versorgungspins hinzugefügt und an den Audioausgängen ein kleines RC-Filter angebracht, um Reststörungen zu eliminieren. Nach diesen Anpassungen arbeitet das Modul absolut rauschfrei. Vorteile: Breiter Versorgungsspannungsbereich (5–35 V) Gute Audioqualität und stabiles Signal Kompakte Bauform, einfach zu integrieren Schnelle Bluetooth-Kopplung Nachteile: Werkseitig kaum Filterung auf der Versorgungsspannung, kann bei „lauten“ Netzteilen hörbares Rauschen erzeugen Status-LED ist relativ hell Fazit: Sehr gutes Modul für DIY-Projekte oder zur Nachrüstung älterer Verstärker und Aktivboxen. Mit minimaler zusätzlicher Entstörung auf der Spannungsversorgung liefert es eine hervorragende Leistung.

Surprisingly capable little module for the price. Setup was quick and painless — it paired instantly and delivered a clean, stable Bluetooth signal without the usual background hiss or random dropouts you get with cheaper boards. The sound quality is more than decent, with good dynamics and clarity once connected to a proper amp. It’s small, easy to integrate into any DIY audio project, and works exactly as advertised. Feels like a budget hack for anyone who wants to add wireless streaming to an existing system without spending much. A no-nonsense, great-value Bluetooth receiver that simply gets the job done.

Prodotto molto valido. Ampio range di alimentazione, ottimo segnale audio: potente e pulito. L'ho utilizzato per dotare l'ics della mia lancia Lybra di bluetooth, lo uso da una settimana circa e devo dire che funziona perfettamente. Pairing rapidissimo e non si avverte alcun disturbo da interferenza. Ottimo per gli appassionati di fai da te. Molto soddisfatto, ottimo rapporto qualità prezzo,ne comprerò sicuramente un'altro.

superb product