Pyle Class-T Bluetooth Power Audio Amplifier - 120W Mini Dual Channel Sound Stereo Receiver Box w/ USB, RCA, 12V Adapter - For Subwoofer Speaker, Home Theater, PA System, Studio Use - Pyle PFA220BT

My second one, I had used the 1st one on a outdoor porch in Florida. Humidity very high, went through 2 hurricanes in which it got damp, not soaking, but a little wet. Lasted for 3 years and still works. Only issue is after last major storm there is a slight buzzing through the speakers when there is no input. With the price, I'll replace it every 3 years. All the functions work perfect, Bluetooth is a nice feature and connects very easily. Very easy to connect to television for adding a little more sound to a porch or garage

No headphone jack, aux input produces low output, Bluetooth sounds loud but humming noise at low volume, sd card sounds great.

- I'm not sure where they got the 120W specification. The sound output is much less in my opinion. The power supply output is rated at 2500mW@12V which is 30W so the amp can be max 30W if it's 100% efficiency. That's about what it really sounds like to me. The sounds seems clear and good.- The tone controls made some static while adjusting them, especially the treble. I cranked them back and forth a few times and it seemed to clear up.- The bluetooth seems to work OK with my Ubuntu Linux laptop. It was detected as a "headset", and no problems getting it to work.- I tested the RCA jacks on the back and they are OK, although they appear to be slightly crooked.- I don't know what to do with the SD and USB inputs. The documentation is very brief. Maybe one is just supposed to know this sort of thing.I'll probably keep the unit as it meets my needs with the bluetooth amplification of my laptop and it's loud enough in spite of the power rating issue.***********Update 2016-0219: I sent the unit back last week. The bluetooth quit connecting reliably and when I tried the line input, it had lost a channel. It also did not power up reliably. It sometimes took several power cycles to get it to come on.

So easy to hook up. Versatility is nice, remote is cool. Small business owner. This product has been exactly what we needed, and will likely buy 8 more if this first one works out, but so far so good

It's a very lightweight, minimalistic product for either car or hope (includes adapters for both.)Not using the BlueTooth, the signal for which seems rather noisy and I need low-noise for my application. Have not experimented in-depth with the USB input; currently just using RCA from headphone jack from my computer.There are two separate volume controls: one is the knob on the far right of the unit front panel. The other is the remote control. They function independently and together control the total output volume.It does produce decent sound and is ideal for driving 30-60W passive bookshelf speakers.

This little amp is amazing. I needed something small in my bedroom to connect my tv to two external speakers. My tv is far from the head of the bed and so had to turn up the volume quite a bit to hear it. After setting this up and putting the speakers on the wall just above the head of the bed I was amazed. There was no hiss and the sound was so clear. This one also came with a remote through Bluetooth. Wish the remote was better but it works for what I needed.

Perfect for my situation. I have outdoor speakers that have speaker wire running into the garage. I was not happy contemplating buying a receiver for a couple of hundred bucks. I found the Pyle bluetooth could be used with my iPhone and was thrilled. It is perfect. At first I did have the annoying hum - but I discovered that my iPhone cover was not allowing the mini jack into my phone all the way. Problem solved. Super happy!

This amplifier is a 4 ohm one @ 125 watts, but I hooked up a pair of 8 ohm bookshelf speakers perfectly. I can't go into advanced detail since I only wanted to connect my TV to speakers, but it works perfectly fine for me.