Pyle 4 Channel Marine Amplifier - Compact Power 400 Watt RMS 4 OHM Full Range Stereo & Waterproof - Wireless Bluetooth Receiver Audio Speaker with LCD Digital Screen - PFMRA440BB

I bought this product to power two Polk Audio atrium speakers on my patio. This amp lives under a covered patio, but in Florida heat and humidity. So far I've been running it for about 6 months with no issues. The sound is loud and clear and it connects to my phone easily.My only complaints are that it makes a very loud beeping noise through the speakers when you turn it on and I haven't found a way to turn it down. The bluetooth range is pretty bad, and the remote control it comes with is extremely low quality. Despite all of this I'm still giving it 5 stars because I think it's an amazing value option for a budget outdoor speaker setup.

While this amp is a very compact size and was simple to set up I have great difficulty in believing that it's putting out 400 watts. I have two very nice Polk Audio outdoor speakers perfectly positioned above my deck and I really expected this thing to crank out some volume for large parties. Sadly, it doesn't come close to my expectations. The Bluetooth connectivity is also very weak; I'm currently sitting at my desk inside the house overlooking the deck. I'm exactly 14 feet from the amp (12' across and 2' feet inside) and if I set my phone on my desk (which is right up against the window) it loses the signal. If I then pick up my phone and hold it in the window it will reconnect. This is NOWHERE NEAR the 50' range they claim this has! Also, the description indicates a separate subwoofer connection but I am at a loss to find that. So, while I'm relatively happy with the purchase, if it wasn't such a good price I'd probably return it.This is an addendum to above: the Bluetooth connectivity is absolutely AWFUL. First connection went just fine but ever since it WILL NOT reconnect! The only workaround is to go into Bluetooth settings, select “forget this device”, then turn Bluetooth off and then back on and then, once again, pair the device. Then, if I walk inside the house I’ll lose the connection and when I walk back out I have to do it all over again! Wow, what a load of crap.2nd addendum: This thing just keeps getting worse! I have my 2 speakers connected to 1 channel L and 2 channel R, I have sound out of both speakers BUT IT IS NOT STEREO! I just played a very familiar song with distinct left and right channels and I could only hear one side of the music but through both speakers. What is the deal with this thing???????????????????????????????3rd addendum: I'm now on my second unit since that seems to be all that Pyle could think to do. No one bothered to answer my questions about proper connections in order to get stereo sound and just said that I ought to return it as it must be defective. What in fact IS defective is the ludicrous manner in which Pyle has decided to label the speaker connections on this device. It SEEMS that I ought to connect one speaker to 1CH/L and another to 2CH/R but that is on fact NOT correct. I've included an edited photo in order to assist others in making sense of proper connections for stereo sound. As shown, to get stereo sound you need to connect BOTH speakers to either the left or right connections but NOT one to the right and another to the left. This is truly idiotic, and even after I asked for tech support as to how to properly connect my speakers I received nothing but an apology. It was only after trying what appeared to be a totally wrong arrangement did I finally get actual stereo sound. I hope this helps others avoid some frustration!

I was pretty amazed how well this worked. It’s driving a pair of Polk audio speakers and I wet tested it. Never stopped working. Amazon music over it sounds bad but if you play local music on it, it sounds great. I blame that on Amazon music (I am a Amazon music HD subscriber and I have a full gig of internet connectivity. Gonna reevaluate the Amazon sub. It’s just not performing). The AMP is performing great though 5 stars for this one

I’m using this amp to power four Dual outdoor speakers in my yard, for music and movie sound. It gets loud enough for me - but I’m trying not to annoy the neighbors. Setup is obvious and easy. It seems quite rugged; I’m keeping it outside in a shed with a roof and open sides. For the price, seems pretty good. The Bluetooth seems fine. The remote doesn’t do much that I can tell.

I have this mounted in a weather proof plastic box outside our back door. Very close to our outdoor furniture. Just 6 or 7 feet away, my iPad and iPhone cut out occasionally. More than I'd like. This isn't normal as I've had 2 or 3 small bluetooth speakers that never had this issue. The weirdest thing about this amp is reconnecting the next day. If you have this connected on Friday, then Saturday morning try to connect, your iPhone or iPad will not reconnect. You HAVE TO go into your phone settings, remove the PYLE device, turn off bluetooth, turn bluetooth back on, and reconnect as if its a new device. You have to do this EVERY TIME. I thought that was a glitch with the first one that arrived, but the second one does the same thing. The first amp that arrived stop working. The Left channel simply would not work after about a weeks worth of light use. The other thing is I don't believe these are new devices. I believe they are refurbished or used. There are small scratches and an overall dull look like the device has been handled in the past. Both amps I received were in this state. Most brand new devices that you purchase go through QA to ensure no scratches or marks. IMO the seller isn't being honest. These are being sold as new, but you'll see if you purchase this.

I bought this to use in my outdoor kitchen, I wanted to have control of the music close so that I can adjust when needed. This unit works great, the sound quality is excellent, and it drives my Yamaha's beautifully. I'm not sure how it would sound on a boat, but for the backyard, it is perfect.

When this amp works it sounds good. Unfortunately this is the second one to lose three out of four channels while turned off for the season. Channels 3 & 4 aren't even hooked up. According to the specs it should handle my speakers with ease and when working it sounds great - no distortion, no hissing or pops even at louder volumes. I picked it because it has an external power supply and should be more heat resistant than amps with internal supplies. They claim to provide a 1 year warranty - we'll see. I'll update with the details. Until then I am going to a different German manufacturer and using a full size AC/DC 30A converter.