100W+100W Amplifier Board with Treble and Bass Control, DC 9-24V, BT and AUX Inputs, 2.0 Channel Stereo AMP Board for DIY Wireless Speakers, Password Free (DAJUNGUO ZK-1002T)

It sounds great, plenty of power for my two 35 watt ms 4” speakers. Very discreet “bing” sound when the Bluetooth connects to my phone. Easy to assemble and install. Doesn’t get hot. Audio pauses when I get a phone call (call doesn’t go through the amp). Solid and stable Bluetooth connection. Perfect “hidden” stereo for classic car - I left the original, broken, AM radio in the dash for looks, and replaced the single 4”x10” mono center-dash speaker with two Infinity 4” Reference speakers rated for 35 watts RMS (105 max) 4 ohm each. This receiver has more power than I need, so I have it’s volume set at 60-75% of max. I get a small but sufficient amount of base (pleasantly surprised), and nice mids and highs. I like being able to adjust base and treble. No hiss or noise. It’s loving the 13 volts my car delivers. I’m very impressed with this little receiver. No complaints, and almost free. The downside to this setup is that I need to touch my phone to adjust volume, skip songs, use Siri, etc. Also, an incoming call will pause the Bluetooth, but not route the call audio through the car speakers, and there’s no microphone,so no hands-free calling. My solution was to also buy “Aston Innovations SoundTek A1+ Bluetooth Car Kit”, and plug it into the AUX input of this little amp. Then I use the Bluetooth of the SoundTek instead of the Bluetooth on the amp, and I have everything I want: 1) Original looking (but not working) 1966 AM radio in the dash 2) Streaming music through Pandora or Spotify 3) Hands-free calling where I can hear and be heard, and use Siri No AM/FM, but who cares. The SoundTek has a 1.6” round control pad that I can hide in the ashtray or wherever. Through it I can control everything by feel, without needing to look an or touch my phone: volume, next song, previous song, pause, make a call answer/reject a call, or use Siri (voice commands). This amp, plus the hands-free SoundTek kit, sound great, and cost very little.

I needed a little amplifier for a small stereo stage monitor that I made. I originally purchased the AK-170 class D amplifier off of eBay and I was initially impressed with the volume it put out as it was the first mini class D amplifier I ever purchased. Since that time I have purchased and tried several other small class D amplifiers and they all sounded about the same. I was looking at other small amplifiers on Amazon and thought I would give this one a try. When it arrived I had to do some minor assembly but it went together easy. After assembly, I hooked it up to the same power supply as my AK-170 which is a 12Vdc, 5 Amps supply. To my surprise the sound was night and day. This little baby has some kick. I fed my signal generator into this amp and it truly amplified sound down to 20Hz. It gave me the sound and body that I was looking for. It is definitely a much better quality amp than the others that I tried. Now I have to figure out how to modify my cabinet to accommodate this little guy cause this amp kicked the other one to the curb. I am going to experiment with a larger voltage supply as that will give me even more headroom and cleaner amplification. The blue tooth works perfectly though I think the sound is a little better when using the wired connection. You owe it to yourself to try this little gem. You won't be disappointed!!

Very good little amp i am using a 24v 8am power supply and it's working great with that much power make sure you are using 40hms speakers. Built my own custom speaker drivers to go along with this

I have only used the amp using the aux-in, not the bluetooth connectivity. I am driving it from a hi-fi DAC hat for a Raspberry pi. The amp drives my in-ceiling speakers with plenty of volume. They are rated 100w at 8ohms. I turned down the volume knob to prevent inadvertent blasting of the room without limiting reasonable loud volume when desired. The sound seems to be good. I'm subtracting one star for the teeny-tiny speaker connections. I used good size wires to install the ceiling speakers and it was a ridiculously tight fit to get them under these screws. Also if you ever need to disconnect and reconnect, you get to experience the pain again. Using connectors would be way better. Note that there are no mounting holes or other accommodations on the package, so you get to figure this out yourself when putting into an enclosure.

very nice product sound quality is good very fun to mess with

So I wanted to build myself a little portable bluetooth system that I could slap one of my 24v kobalt batteries on. At 24v let me tell you this thing pumps, and the audio quality is actually impressive. I have it hooked up to two 4ohm rockford fosgate 6x9 speakers and the bass rattles, the treble is crisp and clear, and the bluetooth functionality works perfectly with decent range. I've run it for 3 hours straight with only one bar lost from my 4.0AH battery. Doesn't even get very hot. Overall, i'd buy this product many times over. Edit: So, 4 years have passed, and this little guy has finally started giving me trouble. First with the aux output mode giving out, and then the bluetooth mode. Honestly, for 26 bucks I'm impressed it lasted this long. i've been using this exclusively to power my PC audio for several months, and let me tell you it has enough power to rattle the windows with the right speakers. What are you waiting for? Stop reading this and buy it already. I'm ordering another one right now.

Purchased one to connect to my projector. Works really good. Surprised on how easy and good Bluetooth function works as well to connect my phone to it when not using projector.

Pretty loud for the size, put in a hard case with two 5 1/4" speakers and a milwaukee m18 battery. Clear, loud, and easy on the juice.

Tiene buen sonido estéreo, la calidad de sonido es buena, me gustaría que su carcasa fuera totalmente cerrada y que incluyera un control de balance, funciona muy bien.

Compact et efficace, brancher sur des enceintes Cabasse, résultat très sympa. attention il n'est pas livré avec le câble d'alimentation.

Amplifier quality is very good, if it clubbed with 24V adapter it will give amazing output. Go for it audiophiles

Non mi sarei mai aspettato una simile potenza, alimenta un impianto bose (anni 90) senza problemi ed il suono tramite bluetooth è spettacolare, acquisto consigliatissimo

Funciona muy bien, lo utilicé en 2 bafles de un minicomponente y entre mas se alza el voltaje con alrededor de 5 amperes, mas potencia da.