I purchased these subs 4 months ago along with the matching 1200rms hifi amp and my expectations have been exceeded. Hifonics have come a long way and the fact there amps are CEA complaint is outstanding. These subs produce outstanding lows and was exacly what i was looking for. About the comment from the guy talking about not having true power, there were obviously other variables and tuning issues causing lack of power.

I have 2 of these in a sealed box with a 1500 watt RMS Hifi amp and they handle it fine even with the bass turned up. Have not had a single problem with this setup. Anyone who says these are not good subs is terribly mislead. obviously there are bigger and louder subs, but if you are on a budget, I highly recommend these subs, Hifonics is an industry leader in several aspects of good sound, and these prove it day after day of use.

They hit hard. Really hard. Especially for the price. Never gave out. Had them for like a year now and still look and slam like there brand new

i put these subs in about a year ago. they keep up with a lot of abuse i give them. they hit hard. they could be louder but definitely a lot of power. it massages my back in my truck. for the price you cant beat them.

Well, I have 1 of these hooked up to a Sony XM-ZZR3301, which is giving it 600w rms. To be honest, when I first hooked it up, I was a little disappointed because it was not getting as loud as I thought it would, but after a few weeks of breaking it in, it did seem to get a bit louder. So overall, I'm pretty pleased. This sub will hit a wide range of notes, I was surprised at some of the low notes it could hit. And if you turn up the volume, it will get loud. I would recommend this sub to anyone, although I would probably recommend getting 2 if you have the space/money, unfortunately I was on a tight budget.

I do not really agree with another comment. This subwoofer works fine. If he is dead is that the settings were not appropriate ... It is six months that I used an amplifier class A / B HFI and it works very well. I recommend it for its value for money.

Right now I have one sub on a weak amp that's only pushing around 300 watts and my cousin can hear me coming from 2 blocks away. So its a really good sub for the price. If u get a good amp and a pro box this sub will hit hard. To be honest if u can afford a square sub u should get it but if not, trust me if u hook this sub up the right way it can out bump alot of subs at the same price. I even wooped two kickers already with this one sub lol so just get the right stuff and go out beatin

These subs are worth every dollar and when wired and set up CORRECTLY, peform flawlessly. Very flexible and can hit a wide range of frequencies for different kinds of bass to your taste. As an installer for over 15 years I cannot stress enough how important it is to match your gains on your amps to the rated watts based on your head units pre-out voltage. MOST people fail to do this and then complain they sound like crap or they blew it.

These subs are incredibly loud. So loud my wife can hear me come home from work more than 3 blocks before I get home. Best sub ever.

I have two of these in my 99 Escort and for two twelves they hit so hard! I didn't think they were going to be this good. Clean sound, loud bass, vibrations; everything you want for a good price.

So a friend of mine recommended these subs about 5 months ago, I was a little skeptical at first but I am more than satisfied with these. I bought two of them and had them runnind on a lanzar 2000watt 2 channel amp at 2 ohms and they slam. They produce nice clean bass. Great for starting systems.

I would recomend thiz cuz its so great!!!!!!!!!!

I bought one of these about two weeks ago and its just as loud as two Audiobahns I had before. But I think I need to get two more because my amp has the voice coils burning after a song. I have a Clarion dpx11500 class d mono block. I think the amp may be too strong?

I bought this amp thinkin it was 1300w!! Boy was I wrong I believe its way underated

I have this sub in a 2.6 Cu. feet ported box and it definitely causes a headache after a while of nice loud bass. Love its bass either inside the car or in open trunk.

I would definitely recommend this sub to anyone who likes power and clarity. I got this hooked to the hifonics 2000D at 2ohms, great bass cant beat it.

These are my second pair. I have them in my 2003 Chevy silverado extended cab in 2 down-firing subwoofer boxes. They sound decent in there considering small amount of airspace. In my 1995 suburban they were ridiculous with a hiphonics brutus2006 which toasted them but while it was working it pounded too much

says it handles 600 watts but dont trust it. half power on my Hifonics HFi1000D and it over heated and died. i would recommend you spend a little more money for a better sub if you truly want 600 watts


**Note From Sonic: When overpowering woofers keep in mind to tune your system to compensate for the additional power. HFi1000D can push a true 700W+ at 2 Ohms which is a little more power than you want to constantly push into this sub, especially with high gains or bass boost.**