DollaTek50wx2 mini bluetooth 5.0 wireless audio power digital amplifier board stereo amp 3.5mm aux usb

I had an old centre speaker that I wanted to make use of in my work shop ... took a gamble and WOW what a super little ampNeeded a 12v supply but will up to 24v eventually sound is great no back ground noise and no hiss .. easy set up all instruction are on the seller page . Any one that moans about fitting the cover needs to have a rethink on value for money . 10 quid for an amp this good is worth every pennyI added a small active sub using the headphone 3.5 jack for bit more bassWorks without issue .Overall really happy with quality of Bluetooth and sound quality

This comes as a kit, which some might see as a negative but I enjoyed screwing it all together. Really impressed at how much functionality it has, and had no problem powering the speakers I plugged in.With a wide voltage range you can pretty much put any power supply on it. Tempted to buy a second one...

OK, firstly THESE AMPS WORK. I’m not interested in 1 star reviews that say otherwise.Pros:Runs off DC voltage from between 5v to 24v (not mains directly). The higher the voltage, the better the amp will work.3.5mm jack socket for audio line inUSB ‘C’ socketLeft and right speaker output connectionsHeadphone/ear buds output socketOn/off switch via main control knob (Press down for 2 seconds to switch amp off)Power indicator lightGood sound output for the price, neatly fits into a small space, worth the money.Cons:Some self construction required but no soldering. Small screwdriver supplied.Due to the small size of the amp I found some parts a bit fiddly when constructing.No instructions (refer to pictures in product description on Amazon website)Note: The connection polarity is important from your power supply. If the amp will not power up, try swapping the +/- polarity.I connected mine to the line out from my suitcase vinyl record player because the built in amp is crap. This little amp is now driving 2 x 75 watt Wharfedale Modus speakers and sounds great.I’m pleased with this purchase.

I liked it, just what I wanted.

For the money this is an incredibly feature-filled and well-made little device.I like the encoder-based digital volume control and the USB-C connector is welcome (rather than Mini/Micro USB). It doesn't appear to have any obnoxious spoken paring/playback status reports with the bluetooth mode either, which is common on the cheap bluetooth boards.However there is a very loud background hiss (with all of the inputs). I tired a number of suitable high-quality power supplies within the claimed voltage range with no impact on this noise.This isn't audible when nothing is playing, because the amplifier appears to be automatically deactivated when the device is idle. However there is a short lag when audio stops before the amplifier is turned off, making it briefly very obvious. This noise *is* audible during quieter sections of music.You could say this is forgivable for the price, but I have other cheap dac/amps in the same class with no audible background hiss.

Used to convert an old Philips centre speaker into a portable bluetooth boombox. Took less than 5 minutes to put together and wire up. Works with anything from 12V up to 24V psu, and even powered it with a portable phone battery and a 5V to 12V boost cable (£7 on here).Excellent value for money.

The amp is quiet, load of background noise, no bass and to top it up if you want to use the Bluetooth functionality you will need to download an app. Truly terrible, do not recommend

Great for a low cost conversion of a vintage 1936 EKCO "wireless". Great sound for the price.... This, as ever, is as much dependant on the speaker choice. Particularly like the "all in one" volume, pause/play and power off function. Can't comment on aux and USB functions as I haven't used them.