This thing is powerful. I can't say a single bad thing about it. I have it hooked up to a Hifonics 12 inch Square, and it hits harder than Mike Tyson, 90 seconds into a prize fight in 1993!

I usually don't buy Sony products specially amps, but i got this amp to power a couple kicker comps and this thing was surprisingly not bad. it's cea certified so you know the power rating isn't Sony rated, it is what its actually advertised. The settings could have been easier to get to though, i like how kicker did their knob controls on the top for easy access. and there is no remote bass knob control, which is a lot more useful than one would think. overall it's a good 600watt amp (realistically 500 - 550, unless your car runs at constant 14.4 volts). All in all i would give it a 7/10.

i have this hooked up to two sony 12's wired at 2 ohms and this set up bangs first hour i installed it my rear view mirror un screwed itself and fell off. Don't let Sony haters fool you, this thing eats!
pros: loud, clear, hits the lows
cons: blue led light doesnt match my orange leds through out my car but il change it.

i believe that is very well priced amp, it excellent it don't get too hot like other amps, also it CEA compliant so you know for sure that you are going to get the right RMS needed, overall this Sony amp is the best i been doing audio for a long time and i know when i see a good amp and this is the one.

This amp is a good product. It is very powerful. Pros: powerful, clean look, clean sound, and easy install. Cons: none. If you want a good amp and have a good sub this will work for you.

It's the best ever. I bought it for my husbands truck. But since i drive the truck i get to hear it more. and let me tell you its awesome. the best sound ever.

I have a 2006 impala SS. I bought this amp to match up with the sony 12" subs I got from the "nation's super center" and they match up perfect! no clipping or disortion. i have them installed in a ported box with the labyrinth venting design. Sounds goood! Doesn't get hot at all. i did it via loc tagged at the factory bose amp and with the out rca's, i ran two sets of clarion tweets on a jensen power 400 2 channel amp. with the sony mono on the subs, the bose running the mids, and the jensen running the clarion tweets from sonic elec. i'm booming , clear,and the mids are really talking. Sonic is the best thing since the dollar menu! lol!!!!

This amp is amazing strong and powerful, i've had a mono rockfordfosgate amp before that had higher rms ratings but didn't come close to the actual power this has. It's bass is super clean not muddy at all. It's strong and you have the option to make the bass more loose or tight. The amp i have running on full every day and is definitely a keeper ever since last year i had this amp in runs just amazingly never heats up always runs really cool even in hot summer days it never heats up. It draws power a good bit but that power drawn is given to the speakers.

I have my subs mounted in the rear deck so for it to work as well it needs to push more and wow does it push.

I highly recommend this and at it's price point it's definitely a steal.

Product ok for the money. Amp is a little week for its rating. May be a little better with a better box.

I bought the sony XM-ZZR3301 sight unseen. The product arrived in a timely manner and with easy insructions. I bought the product for my oldest son and I have the great pleasure of hearing it almost daily! My son is very satisfied with this product!

The only thing that needs changed with this product is more proficient cooling. I've got two of the new 12" subs running on 2 ohms each off of here and the amp will overheat sometimes, and throws on protection mode. Simple power reset and it goes away, but for real needs a cooling fan or two. Also, would greatly benefit from being able to run both of the subs at 2 ohms at a higher wattage. The amp is only turned up about 2/3's of the way and would like to squeeze a little more, but gonna have to get second amp for that...o well.

I bought this amplifier after reading the reviews and finding that it does not get hot. Well, it doesn't!

I am driving a 10" sub, so I do not need a lot of power, but it definitely has more than enough to drive th sub.
I definitely recommend this for anyone looking for a decent amp at an excellent price!

This amp is the best you can get for the price! It goes perfectly with my new RE Audio SE-x woofer. I haven't even heated it up yet but i don't think it puts out the full 600w @ 1channel 2 ohms. more around 450-550. Never the less the value is unbeatable.

i have this amp pushing a kicker L5 12" and its slammin it. doesnt get hott or anything. good amp for money

I bought one of these amps for my first system and it was amazing. I couldn't have been happier with it! Really delivers great power, true to its ratings I believe. Has never ever shut off or even gotten warm! Good amount of tuning options and very durable (had it rumbling around in my truck for 6 months before I changed setup to a honda) Its yet to disappoint me, I actually loved it so much I just bought another one! Definite buy and you can not beat the price and value. I would never guess coming from Sony but I would certainly recommend!

I never buy a product I don't research first and this amp was no exception. For the price you really can't beat this amplifier. It gives 1000 watts of power for your subs and then some. My 600 watt Earthquake sub has never sounded better. I crank my system up and this amp doesn't even flinch. It stays nice and cool unlike my other amp that overheated and fried after a few years. Overall this thing rocks and if you're gonna push under 1,000 watts then you should definitely check this amp out.

This amp was ok. It didn't really give out as much as it was rated for, but what more can you ask for...

Great product, for cheap price.

I have 2 RE Audio subs running on this amp and it pushes both of them nicely; as most people with subs know, if you have subs you uses generally push them hard and this amp does the job nicely. I have this amp in my truck and i go off roading alot and the amp has taken some pretty good beatings and keeps on working
Pros: good design, plenty of power, simple to wire, safe mode
Cons: fairly large

Product is dependable, powerful, and drives my kicker solo baric 15" L7 effortlessly. Doesn't even get warm, and I place it under my driver's seat.

Cant say one bad thing about this amp I have two of these each running a Memphis Mojo Woofer (1000W rms)
Pounds The trunk.....so worth 130$$

I put this amp on a 15" Kicker Cvr wired at 2 ohm and this amp doesn't truly put out 600 rms at 2 ohm it's probably 400 rms at 2 ohm . I cant complain too much its priced at a reasonable price but doesn't deliver true 600 rms watts at 2 ohm

Powers my Sony XS-GTX120L 12" subs perfectly. They hit so hard, they snapped my mirror clean off my windshield. Buy this. Never even gets hot. Even after an hour of more at full power.

This amp is really worth the money. I used to have it hooked up to 2 JL 12W1's and it pushed them great. Now I have it pushing 2 Kicker 15 CVR's and they are so loud. It is wonderful how well this amp has worked for me. Never has messed up once and only went into power protect mode maybe once or twice. The blue light also light's up my trunk at night. Great amp for the price.

It is a great budget amp for one good sub and it is cea compliant

I've been using this amp to power a 500wrms Rockford Fosgate P3 sub. The sub is wired @ 1 ohm and this Amp barely breaks a sweat. The owners manual says that the amp is stable down to only 2 ohms, but I've been running this setup for at least 6 months now and haven't had any problems whatsoever. In fact, the amp doesn't even get warm at all! Worth every single penny.

I traded a Rockford Fosgate amp for this one because the Fosgate was too long and didn't fit underneath the passenger seat. However, after comparing the two amps, I must say that the Sony XM-ZZR3301 does blow away the Fosgate! It was a close call but I have to give a slight advantage to this Sony because of the features and the fact that it's responsive to lower frequencies than the Fosgate. I've been a Fosgate guy all my life, but I was very pleasantly surprise with this Sony. It does provides clear and tight bass at very close to 600 Watts with a Boston Acoustics, 2 ohm sub, in a small enclosure. It was also extremely easy to install.
Perhaps the only drawback to this amp is the lack of manual (remote) controls but if you have head unit that controls the amp, you can very well forget about the controls. This unit also gives off a very cool blue light that's very visible at night time or in dark places.
Overall, you will not be disappointed with this amp--especially if you use it on a 2 ohm sub configuration.

I am using this amp for past 8 months on my MS WagonR Lxi with
2 12" pioneer TS-W1208D2 subs and my setup gives envy to my friends
setups. My car is so loud that when i'm on street everybody looks at me.
My subs are 400w RMS each, yeah i know i'm underpowering my subs
but this amp is so powerful that i have to keep my gain less than half.
If you are looking for a mono amp in a tight budget,
GO FOR THIS AMPLIFIER.

This is a really great amp with plenty of power, at least for my subs, and it looks sexy!! Very impressed with Sony and their product. Also feels very very durable and was very cheap. I got it for 130 on Sonic Electronix online eBay store with free shipping!!