Customer Ratings & Reviews

Great Amp

Amp is used for my doors. Power four Infinity Kappa's. Real HQ amp. Hifonics is CEA Certified and this amp is a great example why. True power is being distributed to each speaker.

Pros: CEA Certified amp. Very durable. Terminals hold wire very well. Looks good.

Cons: none

I would recommend this amp to anyone.

great amp Hifonics BRX640.4

This amp is reall good, I have it bridged to two p2 fosgates 12" on a thirdgen camaro convertible in a sealed box. Man it hits hard.. the amp don't get hot at all..it looks awesome at night...

love it

Everything works perfect, great quality only thing is it doesnt come with remote knob so i just bought an rca remote level knob. No problem here

Pretty awesome amp

This amp runs my kicker 5.25's and mtx 6.5 component set on two channels and fosgate 6x9s on the other two. The sound is incredibly crisp and loud. The amp does a great job especially for the price. The only thing I somewhat dislike is the large size, but if you have room you cannot go wrong with this amp.

brx 640.4

I have two of these amps on mids and highs...one word..awesome!!!

love it!

Sweet amp. I never owned a hifonics amp before but I can say I will own more. It will do its power...

Eh tu Brute'

This amp is a monster, powers my RE XXX6.5C speakers with ease!, and runs relatively cool! The lights look pretty cool too! Buy this amp you will not be disappointed.

Great amp

Great amp but does get a little hot. Lights look great but are bright. Clear sound and good power.

Great power

I have this running my alpine type r components and co ax speakers in my car and they sound amazing. Have great mid bass from the amp and the amp looks awesome at night with the seats down.

True power and features

I have this powering four Rockford fosgate 6x8 powers and it is true power. Has a lot of features, easy to use, love the heat sinks and led's. Does get hot after awhile though. Mine had a problem with the RCA inputs and one of the corner were broke off but I guess that happened in shipping but other than that the amp is great.

Great amps.

Yes it's a good 4 channel amps, i have this baby hooked up to 4 infinity 6x9 in my 07 Camry each pushing out 110 rms and this amp handles them with ease. The shipping was fast and the price was great compared to other sites, thanks again sonic the place for all my car audio. I would definitely recommend this amp to a friend.

Decent Amp

i have been using it for a week now to power 6 speakers, 4x pioneer 6.75" and 2x infinity 6x9's and it keeps up okay but does get a bit hot after some play and it has all the settings it needs to output great sound

Sounds Great

I've had this product for about a month now and it works great, although it is a 4 channel amp it powers a couple subs just fine.

Love Hate Amp

This amp was awesome (powered my 4 infinity kappas) until it created a bad high pitch noise at 1 1/2 years after buying it. I was disappointed to find out that Hifonics was not going to cover it or offer any kind of resolution. I'm using it for my subs now and gives them plenty of power. Overall it left a bitter feeling as Hifonics as a company.

By Topgun on September 29, 2017 Verified purchase