R1004 Riot 400 Watt 4 Channel Class A/B Car Amplifier

⭐⭐⭐⭐⭐ I’m really happy with this car amplifier! It works great and gives my speakers more power and better sound. It was easy to install, and the size is convenient for my setup. The quality is good for the price, and I’m very satisfied with my purchase. I definitely recommend it!

***UPDATE 8/4/18*** I went mudding a week ago and accidentally sank my jeep in a pond 🙃 Completely flooded the floor of my interior and soaked the amp, luckily it was off. A couple days later I ripped the entire interior out and washed it out really good, like literally washed the inside of my jeep with a hose. I figured the amp had already been soaked what more harm could I do. Got everything back together after drying out, fired up the jeep, turned the stereo on and BAM! Perfect sound quality. If it can get soaked twice and still work I think that says something. *end of update* Did you know, that running your power lead in close proximity to your audio cables can cause loss of sound clarity, distortion, and you guessed it, alternator whine?! I’ve had to fix plenty of botched installs due to this. I did a little test and ran my audio cables directly next to my 4g power lead going to both my amps. Heavy whine and almost no signal clarity. Re routed my cables to run on the opposite side of my power lead and wow! Signal was clear, bassy, and no alternator whine. This amp is phenomenal and woke up the old Bose speakers I pulled out of a 2001 Pontiac GTP (2ohms at 50 watts RMS, give or take). I drive a Jeep Wrangler TJ and space is precious, so I can’t have big amps and fancy subs. This fit under my driver seat perfectly and cranks some serious audio to my speakers, even with the top down. Great price for a quality low budget system and I get lots of compliments from friends. GREAT AMP!!!

Piece of junk. Dont believe me then go ahead and get it. Waste your money. Amazon should not be affiliated with this junk. Edit: So if anyone comes accross this and wonders, then I'll go more into detail about why it is junk. 1. The amp amplifies any electrical noise inside your vehicle on top of the never ending beeping sound it already makes. (Read the other reviews about this. It's way too common to ignore.) 2. The amp does not put out clean sound at all. (I used this for my door speakers.) I know this is not clean sound even when comparing this amp my also budget 2 channel "Do" amp it sucks. It can make your speakers sound blown. The amp throws random frequencies to your speakers whenever it wants because it has a built in non-adjustable crossover. It's not always giving you example: 10hz-20khz the full time if you want it.. Based off what I know. If the amp you are wanting to get has an adjustable hpf and lpf then it will most likely give you the sound you need. Make sure to read reviews to see if people are having grounding issues with the amplifier causing it to make harsh noises. Still on the budget side of things you get what you pay for. Just don't agree with boss ripping people off with this amplifier. Do your research. I hope this review helped you learn from my own mistake. FACE PALM.

This unit is clearly not intended to push anything more than a few door speakers. So many people having issues with the amp, and it appears that many of them are using it incorrectly. This is not meant to be bridged and used to power a subwoofer. It is intended to be used to give your door speakers a little boost over the stock amp in your head unit. I also read a lot of reviews about there being a lot of engine noise. I had this issue as well. A couple of things usually cause this issue: 1) A bad ground, causing the head unit to send a bad signal to the amp (tested this by hooking up my phone directly to the amp, and getting no interference) - can also occur if the head unit is cheap, a.k.a "Dual". 2) Gain set too high I fixed these issues by setting my gain just low enough that I couldn't hear any more engine whine, and by installing an in-line ground loop isolator. After that, it was all about setting up my head unit to put out as much sound as I could get it to. Once I got everything set up, and replaced my cheapo Dual head unit with a Pioneer, I was able to tune the sound to get the amp to push my door speakers as loud as it could. To avoid distortion, I used the crossover setting in my head unit to take out all the bass from the door speakers. I have two 12s in the back that easily fill this lack of bass in, giving me a really good and loud sounding setup. I couldn't be happier, so long as the amp lasts. Don't expect this thing to be the best amp you'll ever buy. It isn't. But, for the price, it's a fantastic option to get more out of your aftermarket door speakers.

100% satisfied

This product does work.. and I guess if you dont mind being lied to it's a way to get the ball rolling on having no sound in your car until you can upgrade. But man its gonna be so nice when you finally get out of the minor minor leagues. So to each his own it only barely gives 2/3 of what it says I does. Peace

No

I'm a professional golf cart technician and I installed this amp on my personal golf cart. My setup consists of a Kenwood car stereo receiver (KMM-BT322) and four Kenwood 6.5" speakers (KFC-1665S). I was going after a budget system and this whole package cost only about $170, and that's including a four channel amp wiring kit that I also bought here on Amazon. I installed the amp and radio directly wired to a 12V auxiliary battery on the golf cart. If you try to run this through a DC/DC drop down converter or to two of the golf cart batteries, you will get lots of interference noise with carts motor, controller, etc. Anyways, this amp ROCKS!!! The sound is excellent, and after tuning the EQ a little bit to take away some of the low frequencies that cause a little distortion, I have the system dialed in to play any genre of music loud and clear. This little amp really puts out noticeable power compared to just using the head units speaker outputs. The unit is also very small and easy to conceal. Overall, very satisfied with the purchase, and for the price you can't beat it. I'll definitely look for this amp again when I do another big custom golf cart build!

Buen producto funciona bien y mejoró el sonido de mi auto de agencia sin duda excelente opción a un precio súper bajísimo

The Amp earth's itself through the RCA cable and cause huge feed back, even with a ground loop isolator! Tryed multiple Earth points and different RCA cables as wanted to be as fair as possible when using this product but you CANNOT get the noise to stop. APPARENTLY returns are unavailable will be raising a complaint

Funktioniert fast tadellos, jedoch wird bei laufendem Motor die Oberwelligkeit des Generators nicht weiter geglättet und mann nimmt dieses als Surren in den Lautsprechern wahr. Dieses Surren könnte man entgegenwirken wenn man paralel zu den Plus- und Minusanschlusses einen Kondensator betreibt. Die Einstellpotis funktionieren reibungslos.

イコライザーは付いてないし、w数あってんの？って並にならない。これ買うくらいならアップガレージで中古買った方が全然良い。 安いとはいえ酷い。 音質「ノイズすごい」 安さ「値段同等」 取り敢えず2度と買う事は無い。

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