AK45 Stereo Audio Amplifier,300W Home 2 Channel Wireless Bluetooth 5.0 Power Amplifier System, Home Amplifiers FM Radio, USB, SD Card, with Remote Control Home Theater Audio Stereo System

Great basic amp for retail. Bought to use in my retail location. Hooked right up to existing speakers and I paired it with a CloudBox from CloudCover for streaming music. Clear audio and lots of power.

Totally surprised at how completely this fits my need. Plenty of power, clean sound. Beyond what I expected.

I didn't buy this as stand alone amplifier. I have a Pheanoo 15 soundbar for my 75" Samsung TV. The sound bar came along with a 4" ported subwoofer (box shown in photo). After 2 years of use the subwoofer foam surround started to detach from the cone and sounded horrible. So I am innovative so this is what I did.I cut the cloth covering the speaker then pulled the blown 4" subwoofer. I was surprised it was rated for 4 ohms instead of the usual 8 ohms for home use. The blown speaker was rated for 40 watts and I assumed it was 40 watts RMS. Now I could have bought a 4" sub rated for 4 ohms and just hooked it up and been done with it. But I had a pair of 6.5 inch component speakers from an old car installation that was rated for 30 watts RMS 300 watt Max and obviously 4 ohms. So what I did was cut the ported box for the 6.5 inch to fit into. Problem solved I had the bass back and worked just a tiny bit better than the 4" factory subwoofer. But gears started turning in my brain and said if one speaker is just a little better and I have a second speaker from the pair two speakers would be better.So I started searching for little amps on amazon and to my surprised I came across this little Daakro AK45 and it was rated for the almost the exact rating as my 6.5" JVC component speakers, 40 watts RMS and 300 watt max. Perfect match and for the price i couldn't beat it so I bought it!To make it work for my application I cut the 2 wires running to the subwoofer box and spliced in 2 male RCA connectors from my old junk wire drawer. The wires I cut were clearly labelled + and - so I stripped the cut RCA connections and wired the positive wire to both positive wires for the RCAs and the same for the negative. Put it on Aux and turned on the TV and soundbar and the soundbar fed the input through the RCA connections to the amp and the amp fed that signal to the replacement speakers. It worked but this is where it got tricky with trial and error.I was getting signal after matching the input level by ear ( I couldn't find my Oscilloscope) when I shut off the TV and the soundbar shut off I would get a buzzing sound though the 2 speakers the amp fed. Now when the TV and sound bar is on and muted there is zero distortion or buzzing noise. It wasn't super loud but bothersome none the less. So I started turning the power switch off on the amp at night when not in use. But when I turned it back on and the TV and soundbar kicked on it would distort out bad and the input level didn't match up like I had it set, it was way to high. Now i fought this for day until I realized there is actually 2 different input levels for this amp. There is the analog dial which I was adjusting and there is a remote that came with it. When u turn it up and down with the remote it ranges from 0-30 digitally, the analog dial doesn't change, there is a digital level. Regardless of what you set the digital level to when you power the amp off with the power switch then turn it back on the digital input gets reset to the maximum of 30!This explains why I could never maintain proper input level matching! Now I understand that using spliced RCA connectors from a high level input source without a high to low input adapter isn't ideal, that could very well be why I'm getting the buzzing sound when the TV gets turned off. But when I turn the digital input to the middle which is 15 and then set the analog input dial I get way better sound with more bass and no distortion.I have a high to low input adapter sitting in my wife's old vehicle from an old car audio installation so I'm gonna rob that to see if it resolves the distortion I get when TV is turned off. And if it is resolved I will update this review but doubt it will be. It could be just the type of sound bar I have who knows but i wish this amp didn't have 2 separate input levels of digital and analog and since it does I wish they had some kind of constant wire to retain memory of where the digital input level was set when powered off manually with the switch.But my review is for the money your not gonna find much better for the money and for the abilities such as radio and bluetooth and Aux. But if your planning on buying this and powering any kind of real 3 way home entertainment speaker ya know a tweeter a mid level component and a subwoofer this product isn't what your looking for. 40 watts RMS isn't even as powerful as most car radio head units that are rated for 50 watts per channel.Yes it will give you sound but it will not move and real home 8 ohm subwoofer in a 3 way or 4 way speaker configuration. I'm very surprised its handles 4 ohm speakers, most home audio is 8 ohm or higher. For those who don't understand what ohms are they are basically the resistance for the amplifier encounters when converting the input signal to usable power. The lower the ohm of the speaker the lower resistance the amp encounters to produce the power to the speakers. A typical 8 ohm home speaker will encounter double the resistance to get power from this amplifier compared to a 4 ohm speaker.If you have 8 ohm speakers of any real power handling capacity I would strongly discourage this product. Don't focus on the 300 watt Max Rating, focus on 40 watts RMS rating but I assume that would be the RMS for a 4 ohm speaker and not an 8 ohm speaker or higher. Now there is a way to change the ohm resistance that the amp encounters when wiring speakers that is typically for a dual voice coil subwoofer or when wiring speakers in series which this product wouldn't be for an application such as that.P.S. If using this for the application I did, my soundbar had built in low pass crossover to block out the high frequencies from reaching the speaker but still turn the treble all the way down.Now if I wanted to listen to the radio or use the bluetooth or SD cards I can get high frequencies from my speakers since they are component speakers but my primary use is for my TV soundbar. If I listen to music its thru apps like Spotify or Pandora

Excellent little amp/receiver for the $. Easy to connect & powerful for a compact unit. Recommend

It’s a bummer to need to return this, but when you switch to bluetooth option, and/or connect to the bluetooth, a full-volume, extremely high pitched, loud, distorted sound plays to notify that you’re connected. It doesn’t matter if you’re at half volume, or low volume, the bluetooth noise is always LOUD AND PIERCING. If it only happened the once when you turn it on I might be able to overlook it, but it randomly lapses in connection and the sound blasts out of nowhere. I work in a tattoo shop, and loud piercing noises coming out of nowhere are a very bad thing to have.

Wow I’m pleasantly surprised it was going to be of such good quality. It’s well worth the price! I connected to my 6 in speakers and it can push them enough to enjoy loud music!

This is exactly what i was looking for and so glad I found it. Super easy set up on my deck with my outdoor speakers. Everything worked as expected. I will be buying another one for my shop to install music there. Highly recommend.

My audio Setup: I have an echo dot on the back patio and 2 bare outdoor speaker (non powered) with wires run back into the house.This device is on a shelf inside, about 15 feet from my patio echo dot, it automatically connects to the dot if the receiver is on, so now if im outside I can tell Alexa what music to play or skip song, change the volume etc and all the commands work great.Pros:Works great with my Alexa. Volume is more than I can handle honestly so 5 stars for that.It's a small device so fits on the shelf easy, has a nice look.I like the bass and treble options.FM radioIve not tried the SD card or the USB optionsCons:The bluetooth range is pretty limited. I'd say 15 feet if there's a wall is the MAX.The FM antenna is not very long... I feel like I get some static on the weaker channels.NO FM Radio TUNER, and you can't set FM presets as far as I can tell... pretty much it does a full scan the first time you run it, saves EVERY channel as a preset and if you want to change channels you just press the >> button until you get to the channel... a little tedious but whatever, I mostly use Alexa.But overall for the price this thing does exactly what I want it to do with really minimal set up and so im pretty happy happy with it.