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.

Amazing!

I like this amp a lot. I have it running my kicker components in the front and i bridged 2 channels for my 2 10" kicker comps. It handles all this with ease. If you are looking for an amp that is a good deal this is it. It will compete with all the other high end amps and won't cost as much.

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

Gets the job done

For a lower cost 4 channel amp this thing puts out the power needed for 2 good sets of full range speakers... This thing makes your system match the bass output and stops the muffled over powering bass from subs.... now I just wish HiFonics mono amps were able to output what they are rated at... even though they are CEA2006. Pffft

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.

Awesome Amp

The title says it all, this is an awesome amp. I have been into car audio for about 20 years and have had many different amps and these are high quality. It replaced a Rockford Fosgate P450.4, it has a warmer, cleaner sound and adds a nice punch to my components. My DVD's sound amazing. I have ordered a Hifonics Brutus BRZ1700.1D for my HX2 12's.

best buy

Didn't think there was much diffrence in amp's owned Sony's for years. Bought this amp. Wow i was an idiot. What a sweet sound, balanced and clean. if i had to pick a con, it would be give lots o room for mounting. its a bit big.... but what a sound. good value here!

Great mids/highs amp!

Im running 4 Rockford Fosgate Punch P1653 door speakers off this. they get so loud they make your ears ring! sound crisp and clear. great value speaker amp! hardly even gets warm

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.

Great Amp

The ZXI and BRZ line of amps are incredible and my BRZ1700.1D has never failed me once. Trust me this is a great buy.

great price with true power

This amp reproduces great sound for your highs, it stays cool, and has a cool look. You won't be sorry with this amp for mids and highs.

Great Amp, Clean Power

I've had this amp in my truck for a little over 7 months now and absolutely love it. I'm pushing a pair of Rockford T1 5 1/4" components and T1 6.5" components as well. This amp powers the speakers amazingly. The only complaint I have with this amp is it gets warm from time to time, however after throwing a fan on it I haven't had any problems. Great product for a great price.

Impressed

I've got this amp running Infinity Kappa 6x9s and two JBL 10s. 2 ohms per channel. It pushes the subs well. It has very clear sound on the Kappas. No distortion, no noise, and can play far louder than i can stand. High quality for a very reasonable price. The amp is big and well built. Made in the USA. Unless you want to spend a lot more on an amp, buy this one. I will be buying more Hifonics amps in the future.

Nice

nice look. lov the blue lights. gives good power to my speakers. only problem i had was it shuts off for long playing time in the summer.

Best in pairs

I have this amp and the ZXi6006 in my GTi. Very nice amp. They both look great together! It powers my speakers great, not much you can ask for out of it. Nice and durable, as well. I love the blue lights when showing the system off to people.

Very Pleasing

I own this amp. And had it hooked up to a small 10 inch JL Audio Subwoofer. This amp pushed enough power to make my car rattle.. I recommend this amp to anyone who is interested.

Won't be dissapointed, great amp!

Had this amp over 6 months now no problems at all. Have every feature you need on an amp. True rms ratings unlike older Hifonics equipment. Don't hesitate to buy.

Perfect match for my Hifonics Brutus BXi2010D...

I bought this amp to go with my Brutus BXi2010D, and I couldn't be happier. I have ch. 1&2 running a set of Infinity 1031T tweeters, and ch. 3&4 are running a set of Infinity 6422cfp's. They sound nice and clear. This is another amp from Hifonics that I would highly recommend...

Excellent Product

I've been using Hifonics for years and the quality is still top notch. I have 3 cars in my family and each one is equipped with Hifonics. You just can't beat Hifonics.

Nice for the price!

This amplifier sounds great and has done everything ive asked it to do. as long as you set your gains correctly and give it the proper electrical to back it up, you will not be disappointed.

By Brandon on June 18, 2024 Verified purchase

Awesome Amp

The quality sound of this amp is awesome I've owned many other amps and this one is up their with the higher end ones no regrets. I have the 600w and the 1200w in my truck pushing 2 pioneer shallow 12inch and 4 pioneer 6?8 components. My truck sounds great.

Its ok, Could be better

The is not a bad amp at all its just that they heat up fast, I'm gonna be using this for my component speakers, I have the class higher then this amp for my 2 10's and 2 12's Audiopipe voices. I brought the Autotek 2600 watts and no problem it doesn't even heat up, so i think if you buy this Amp your better off buying the Autotek Amps, I know there the same company but Autotek never heat up like Hifonics Amps. I brought the Amp just to test it but i'ma have to get fans to cool them down just to run them with out over heating it.

Great

Since buying this has powered four speakers for the last 6 months and has performed great.

Great amp for the price.

Beautifully made amp. Powers my Alpine SPS-610c components wonderfully. Hifonics always provides very good quality products for the price. Wouldn't buy anything else.

Sweet Amp

I have this think pushing 4 infinity speakers and a 10" pioneer sub. Sounds great!!!

great for the money

Wont lie this is amazing has really great mids and highs and bass is awesome.

Works Great

Have these powing my mids and highs and this amp gets the job done. Great for the price and would recommend it..!!!!!!

Worth Every Penny!

Just picked this up and paired it with the ZXi 6.5c speakers. High quality, detailed, and VERY loud. I'm a huge Hifonics fan and this is another amp to add to the list. The only con on this amp is theres slightly more interference than my old 55Wx4 Alpine, but it more than outweighs it in the quality at high volume.

Amps not good

After installing the amp after five days quit working. I took it back to the shop and the installer said the output side of the amp doesn't work. Not good.

Great amps for the price

I have the 150.4 running my ID CTX65cs mids, and 80.4 running my tweets. These are excellent amps that do rated power. My front stage gets way louder then you would want to know, and sounds clean doing it.

(If you do not supply a large enough conductor for your current draw, of course one will cut out. Your autotek is simply taking more current draw and you are not providing enough for both amps. Next time run a 1/0 back to your amps with a dist. block and two 4ga. wires feeding the amps individually and you will be fine.)

one killer amp

This is one great amp for the money. sounds great awesome features well built.

Good for the mobey... But

I bought this a couple months ago and the power does seem under-rated. However, it did get really hot on me and shut down but it was running 2 300 watts RMS at 2 ohms each on channels 3&4 and bridged a pair of selenium horns on channel 1/2- so I was putting quite a load on it, not to mention I didn't have it in a well ventilated area. Since I've taken the subs off and added another pair of horns bridged at 4 ohms on channel 3/4, it hasn't shut down on me since. Also the high pass crossover has a giant range so it's hard to be specific, you just sorta have to guess at it.

Hard to beat for even close to cash

I run a Kenwood 3013 sub and two Fosgate Punch 6.5 s at 4 ohm 1 farad cap. Wow this amp lights um up was going to drop to 2 ohm add 2 more 6.5s but not needed this amp drives sub has very good mids and highs highly recommended, seems like Hifonics of years past

This amp

I have been using this amp for over 3 years and it has been kicking butt everyday powers my doors and sends clean power... I wish they still made this...

I got more than I expected

This amps is pretty good on quality I run all my speakers and it make pretty good sound

Sensitive to power needs

First of all, I have been trying a few different amps for my four channels and using high pass.
When using alone, the sound of this amp was just beautiful. Sweet loud and clear. BUT THEN I put a AutoTek m1400.4, 4-channel A/B amp alongside of it, for my four 12" woofers. The power wire gauge was not large enough for both, so guess what happened?
Under the increased load the Autokek won, and literally sucked the life out of the Hifonics, making it practically shut down at every bass beat! I was shocked and returned the Hifonics. Also, when using the Autotek for powering the fronts on high pass, it didnt sound as sweet, rather smoother, but had richer soundstage presence. So I have to say I recommend AutoTek over any Hifonics.

Great amp

I run a Kenwood 12 Inch sub and 6 3/4 Fosgate punch speakers I installed in 2011 In a 4 door pickup all speakers in sealed boxes I later put Fosgates in all 4 doors on deck power 6 years later everyone who gets in truck o my god good as I've ever heard I use a hifonics Zeus 4 channel amp the power is way underage I've had to reglue mirror 3 differnt times highly recommended

By Tom on February 23, 2017 Verified purchase

great amps

im running 2 of these amps on all 8 of my 6.5 rockford fosgate door speakers and are working fine... my only issue with them was the mounting where they bolt down i had them mounted on a trim panel i made for my blowthrough in my truck and with only having them mounted there for 2 weeks both of them have already broke on 1 side on each amp im guessing cause its made out of plastic and the vibration but other then that are great amps

By Leo on June 2, 2016 Verified purchase

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