- 400W 4-Channel Hydra Marine Micro Amplifier - Waterproof - RCA Input - 3.5mm Jack - MP3 - Soft Turn On/Off - Volume Gain Level Remote Control - Power Protection - PLMRMP3A

Have been using this amp for over a year now, still sounds great,as others have said the gain control is useless except I just set it and use my iPod as the volume. I'm using it in my jeep with 2 6x9's and two tweeters (tweeters run on one channel) so I have an extra channel, am going to buy a Pyle amp next week to complete. Overall I'd say that for the cost $50 at the time. It is great, straight forward and just plain works.

Smooth installation of this little amp. The hardware is all there for remote MP3 plug-in, remote volume, speaker lead ins, was thrilled. But then I went to play music. Maximum volume is so low you can only really hear it when there is no wind, not the case on most boats! The advertised wattage should have been plenty of power, but it wasn't. So excellent inexpensive amp, but not suitable for the environment it is marketed towards. I ended spending twice as much on a JBL Marine amp, and now I can hear the music!!! Only regret is wasting the money on the Pyle unit which I threw the box away for so I can't return it. Serves me right for buying the cheap amp. Read David S. Jannke's excellent review for more details.

As advertised

This amp will do well for most applications, especially the water resistant (NOT fully submersible) ones. Unfortunately like many amp manufacturers Pyle has chosen to exaggerate the amp's wattage rating beyond all reason. This amp (like many other low end auto and motorcycle amps) is built on the Toshiba TA8210AHQ amplifier chip. In this case the amp has two chips with each servicing two channels. According to Toshiba this chip is rated at 22 watts per channel at 18 volts. At your average car voltage levels (12-14 or so) it will deliver less. There is no voltage boosting stage which would be required to anything deliver more than about 40 Watts bridged into 4 ohms and the TA8210 isn't rated for bridging anyway. Note: The technical details posted on this unit as of 7/18/10 are also apparently for some other device. This unit has no AA batteries or USB connection. Some other technical details are inaccurate: The documentation does not mention the unit as bridgable and the chip documentation doesn't either. It IS 2 ohm stable according to the Pyle documentation (a correction). Some elements are barely technically correct: The distortion is only correct at very low power levels and if the unit is providing 22w it is doing it at 10%THD. Frequency response is 20hz - 20k not 10hz - 20k Net recommendation: A good unit for marine, motorcycles and where you don't have space. Not as good as it's specs, but most low end amps are using the exact same chip and circuit design with different housings anyway.

Well I bought one a few months back for my yamaha v star and thought it did a great job at a cheap price so I thought I would try it on my harley while adding some 2 ohm upgraded speakers to my fairing. Well so far I am not at all disappointed, I believe if you ran this amp wide open it will destroy your speakers unless they are 200 watt rms. My speakers are 100 watt rms and I have to dial the amp back a bit. The amp will also get hot if you overdrive it, wide open gain and wide open volume, but it has never failed. For under 50 bucks there is no way you can beat this deal. It really does sound great and will drive four channels equally. It also comes with a 3.5mm stereo jack insert you can mount on your bike in your fairing, and the amp external volume control you can also mount on your fairing. Its not really meant to be a volume control, but a gain control that you should set and leave it be. control your volume on your radio. I just can't say enough good things about this amp for that price. I would buy it again and again. Have two now.

So far so good. I bought this for my Harley ultra classic, the only downfall is you have to eliminate the front back channels, this amp only has right left channel. Does add gig quality sound to my speakers though.

For the price, I'm really not sure you can beat it. Have it installed in a radio cooler, running 2 - 5 1/4" and 2 - 6"x9" speakers. Crank up the volume and you will be quite surprised. Does it have enough power to blow the speakers? No...and you shouldn't expect that. For what it's designed for, it does the job quite well. Only issue I have had with it so far is the "gain control knob" pulled off of the shaft it sits on. No big deal, nothing a little superglue couldn't fix. It could have also been my fault as to why it came off...so that's why I am not dropping a star.

If I could give it zero stars, I would this is the worst thing I have ever spent a penny of my own money on. I can’t believe Amazon lets these be sold. They do not work at all got it straight out of the box hooked it up in an open area to make sure it worked because I read the other reviews after making the mistake of buying it and it doesn’t work.

I bought this because the inbuilt amplifier in my head unit shut down. What I found it tht the sound is punchier, more open and musical than the inbuilt chipsets claiming to be the same output power. Quality is high and the inclusion of much of the cabling makes for a simple installation.

Sehr kleiner und guter Verstärker für einen günstigen Preis. Ich benutze den Verstärker in einer selbst gebauten Boombox und habe 4 Lautsprecher angeschlossen, der Anschluss ist super einfach und auch für Laien machbar. Man kann über des beigefügte Kabel MP3 Player o.Ä. anschließen, benötigt aber dafür ein extra Klinkenkabel. Ein Drehknopf wird angeschlossen, mit dem man den Verstärker ausschalten kann (allerdings regelt dieser nicht die Lautstärke, was ich etwas seltsam finde), eine richtige Fernebdienung ist nicht enthalten. Zudem gibt es eine Hülle für das Handy/MP3 Player, die wasserdicht ist. Ob der Verstärker wirklich wasserfest ist habe ich noch nicht getestet, mir ging es hauptsächlich darum 4 Kanäle zu haben und das bei einer kompakten Größe. Diese Voraussetzungen wurden erfüllt. Der Klang mit dem Verstärker ist ordentlich, könnte aber besser sein (wobei man bei dem Preis definitiv auf dem Teppich bleiben sollte was die Erwartungen angehen), es gibt kein Rauschen, der Klang ist klar (bitte auch bedenken, dass die angeschlossenen Lautsprecher einen großen Einfluss haben). Insgesamt bin ich zufrieden und ich würde das Produkt wieder kaufen.

Nice little amp. Added it to my Teryx with four wale tower speakers and it’s pretty good. Was running the speakers off the head unit before...the amp made a big difference.

NOT a 4 x 100w rms amp. It's likely a 100w rms amp which is split over 4 channels, so actually a 4 x 25w amp. It's a bit disappointing but then again you get what you pay for, especially with audio products. Pretty good build quality, does what I need it to do (just).

L'ampli ne fait pas 200w mais 20 maxi...je vais acheter 2 hauts parleurs 400 w pour voir si cela marche mieux