Customer Ratings & Reviews

Impressed...

I bought this to run the new kicker LED speakers, 4 of them in our boat. it's not a marine amp but I installed it off the floor on some bushings and under our helm. I was amazed that an amp that cheap could sound that good. I was very skeptical! Plenty of power and it just so happened to light up with matching blue LED in my boat! Never felt warm to the touch during use.

Pro's: excellent price, provides plenty of power to run 4- 6.5" speakers.
Looks awesome lit up. I even got a price match!

Con's: little bigger than I thought

Amazing sound!

I have this amp running two infinity kappa 2ohm 6.5s in the front and 2 5.25 Rockford 4ohm speakers in the back, and they get loud! I am very pleased with this set up!

Great power supply!

People trash talk hifonics saying they're not as they used to be but i beg to differ.Every company except one or two make their products overseas and this is to make the product more affordable for us, unfortunately quality can suffer, but thankfully this amp doesn't fall into this category.
I have three amps currently in my car, one sub, 12 other speakers including tweeters. The zrx 600.4 replaced the 6/7 year old jbl gt75.4 i had because i wanted something smaller, more efficient with a new school, power efficient power supply for a reasonable price. Compared this amp to my rockford fosgate amps and i think those would win basically because the new rf amps are the best products they've made in a long long time. The sound quality is good, not great, but i know my speakers have way more clean power going to them now since they sound totally different.Mmids are louder, highsare cleaner and the amps mounted in my spare tire well, held down with velcro but ive read thats a good cool place to mount an amp. No problem except slight whining noise either from an old rca, the gain being too high or maybe crossed wires, im fairly certain it's not the amp tho unless gains just up too high. I use my zrx600 to power 6.5" infinity kappa coaxial 100w rms, 6.5" jbl p665 components also handlea nominal 100w (whch btw they bump some amazing mids now, infinitys do too).
I recommend this amp to hifonics loyalists in need of an efficient 4ch amp to power some mid/high end speakers that can handle atleast 80-85 watts,but i bet it could power a couple of 10" kicker comps easily. Ty sonic! As always best deal online, free shipping and good service is a bonus!

This is great!!!!

This amp is awesome it works great in my avalanche

Awesome amp

Love it. Amp works to perfection. This will be my second one bought.

Great amp for mids and highs

This is the amp to buy for mids and highs. I have it on four 5x7's and it rocks them way better than I thought it would. The price of this amp is very low for what you get. I have had way more expensive amps that haven't preformed as well as this one. Great buy for sure.

Amp

Good price, decent amp. Little cheap made but gets it done.

Great product if it works

This will have been the second one I have purchased. I purchase one about a year and a half ago it worked great for about three months and the one channel started intermittantly going out it took about another three months to trouble shoot the problem. When finally everything pointed to the amplifier I replaced it with the same one to prevent changing connections so far prolem solved and working great as I said great product when it works

Great little amp

At first I thought it was going to be a little cheap compare to other amps but I was very surprised. Right now I am loving it and the best part is the price was awesome....

Screamin

I bought this amp for my 6.5 coaxial speakers and it was a night and day difference. Cant beat the price of hifonics amps

Sounds good

Decent amp. Using it to power 4 type r components. The price is right. The sound is clear and loud. No problems so far. I have the Hifonics zrx1500.1 on the way. Will let ya know bout it.

Hifonics ZRX600.4!!!

Great amp, great look, and small enough for my application, Haven't tested for actual performance if does rated, but good glowing hifonics blue logo, the only thing i did not like is that blue light doesn't work anymore don't know why, but overall good amp. Recommend to anyone.

good review

ok so I bought this for myself for x-mas but the wife made me wrap it and keep it under the tree.so long story short I hade it for over a month before I even got to play with it. I have it in a 98 jeep wrangler it makes my kicker 6 1/2 scream I can now hear my music even without the top on my jeep. for the price I do not think I could have gotten a better amp I will recommend this to all my friends.

update I rated durability so low because I just got it hooked up and I do not know how long it will keep working.

Clean sound!

I have been using Hifonics amps for over 10 years. They are still built well and deliver clean sound. Sonic always ships fast and the items are well protected.

Never had this brand and wanted to try

Well first off, I had bought the PA 2300 watt 4-channel, and with in three-four months use it die on me. So I got this Amp and was really surprised at the power and durability of this Amp. It runs my Mid's and Hi's very clearly. Tanks Sonic's

Good amp

This amp makes my door components sound loud and clear, seems to do rated power and has a good nice blue light up logo of the hifonics,
the bad is on my amp it does not light up anymore don't know why though. Also this amp is not good for a small sub since it says 300x2 at 4ohm it just isn't clean bass. would recommend for speakers not for sub woofers.

Great sound

Using this amp to push 2 sets of hifonics atlas 6.5 components. It seems to be a perfect match. They get as loud as anyone needs them to be inside the car with no distortion until almost maximum volume level and at that point the volume level more than satisfied our needs.

hifonics 600

love it...older amp was a 400 watt..worked great for 6 plus years....finally just went out one day..purchased the hifonics 600 watt for a little more power..could not be happier with this amp...don't need all that BOOM so the 600 watt was great for my vw golf application...enough bass with great highs as well ...for a great all around sound..if you need a great amp on a budget like I am on...hifonics is the way to go...thanks

Awesome amp!

I have this amp paired with 2 kicker 6x9 and 2 kicker 5 1/4 and the sound and bass punch is very clear, and this amps double bridging capabilities will really make any system come alive! Very happy with Hifonics amp.

I love hifonics amps cheap and put out the power with no problem

Amps r great thumps up hifonics alotta critics but I've owned a few over the years and haven't stopped suprising me yet

I love hifonics amps cheap and put out the power with no problem

Amps r great thumps up hifonics alotta critics but I've owned a few over the years and haven't stopped suprising me yet

By dale on April 14, 2016 Verified purchase

clear and powerful

nice price along with great service and shipping
if u need lil more power and dont have a bunch of money hifonics is great