*Superbly underated *Great looking amp to showcase *Quiet operation *No noise entered my SQ system upon install- underated specs as well * Doesnt break a sweat @ 2ohms even after extended periods of listening * Class D very efficient * KIcker great watt per dollar value * small chassis packs a mean punch

none so far

Kicker never seizes to amaze me. Having been a Kicker fan for years (owned original Solo's and 2 ZR360 amps)This amp came through way underated as my previous experiences with their products. Birth sheet states 731rms @ 2ohms -14.4 volts- which means in an automotive environments (~12.5V) is still pupmping well over rated power- Right now its running my DVC SS Rubicon (600rms) like a champ- Nuff said

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Soundstream, PPI, Phoenix Gold, Arc Audio, Monitor

A lot of power, user friendly, nice looking(without the shroud) subsonic filter does wonders. It is kicker

Only thing is the shroud is kind of ugly, but just take it off and it is much nicer looking.

This amp is great. Mine came with a birth sheet that states it pushes 745 watts and that is true wattage not fake blown-up watts. Because I was limited on space I just bought one sub. I bought the Kicker S12L7 sub with a sealed enclosure. This sub and amp make my music sound great and the bass for one sub is amazing for a car(1995 ply acclaim) that is not made for bass at all. The amp does drain my battery ever so slightly, But I have a cap I'm going to put in, along with a kicker Kx600.4 and if you think the 600.1 is a beast checkout the 600.4 it is about 6 or 7 inches longer than the 600 or about the same size as the kx1200.1. All I can say is I have a kicker 600.1, 600.4, a s12l7sub, kicker resolution series components and a kicker coaxials and together this sounds great, and the one thing that Kicker is great about is they give you almost everything you will need to install every thing except for amp kits, and the quality of there products is exceptional for amps the only amps I can compare to kicker is soundsteam and xtant other than no one really compares and that includes Jl audio( which is good but completly over priced for everything they put out). My final statement is I could not be happier with this amp which is a true power amp. The subsonis filter also is very nice it will make your sub last longer although never turn it off or on when you sub is running it can ruin your equipment. Do not pay retail go to Cbrstereo.com they give excellent prices.

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orion ?, rockford500bd, boss 50x4, and Jl audio500/1, the orion and the Kicker are much better than those and the kicker has the edge over the orion so kicker was the best out of all the amps I used.

Everthing!

Nothing!

This amp is the best amp I have ever used. I have it powering two kicker comp vr's and it pushes them to their limit. This setup is in a 2002 z28 camaro that is a hatchback. It is unbelievably loud and deep. I have everything running into 2 ohms and you would not believe the sound. It is well worth the price I paid plus double!

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Rockford Fosgate 800a2. 2 Fosgate he2's...amp blew in two weeks so I went with the best..Kicker!

Never gets hot. Even during hard bass. The sub is power hungry and so far the amplifier has been able to give it what it needs.

None so far

Bought this amp in great confidence and was not disappointed. Have it working with my Eclipse 9122 subwoofer. Bumps like no other. Glad I purchased it.

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None

This can be answered very easily, the entire amp is a monster and was crafted very user frendly. If u want more power, just link the two amps together and they can merge into one super amp, awsome!

None!!!!

This is the strongest 600 watt amp I have ever had the pleasure of using. It is definately under-rated. I am pushing 3 12' subs rated at 800 watts max 400 watts rms each and they pound so hard they make my windshield wipers jump up and down and my trunk is completely warped from the pressure. I need one more 600.1 to max out the subs, I can only imagine how that will sound compared with what I get with only one. All I can say is well done Kicker and I would promote your product with no questions asked.

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I used to use a Planet Audio amp rated at 600 watts max. Not even close.

Man this thing is KICK A$$. I recoment the 600.1 to all the plays. I am selling a kicker 600.1 for 250

Very clean, powerful bass. Does not distort and barely even get warm.

Hell no!!

This is one of the cleanest amp i've heard. I got it hook up to 2 12in. W3 and it hits hard ass hell!! When i first got this amp, i didn't think i'll be that big of the different from my current one, but DAMN!! this amp is crazy. It's way under rated at 600W it's really pushing like 700+ of true, clean power. Highly recommended.

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MTX, US Acoustics, Sony, MA audio, Alpine, and more.

small power full doesn`t get hot like some cheap amps do

non found besides to loud and making it hard to use my mirriors

very nice amp all my budds want one i got it hook up to a L5 solo baric makes my driver side view window shake so muck i cant barlly see and the rear veiw just drops start down

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1900 watt boss amp 12 watt boss amp

Great amp, lots of power

None yet!!

Wow this is an awesome amp. When I brought my truck in to get my wires ran the guy was like " O this amp is just ok" I said " What do you mean ??? Its a kicker, just because you dont sell them doesent mean you have to knock on my amp." I was like let me test it against any other amp you sell. H egave me a JL audio amp and my kivcker was much better. This is a great amp. The one I bought is NOT refurbished, I just got a really good price. This is an awesome amp!!!

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Rockford Fosgate 500bd

Super clean, Super power, can link 2 together to get 2X power

ummmmm.....

I have 2 4 ohm 12" xpl kickers wired in to 2 ohms in a custom ported box, a kicker kx600.1, a fosgate 1 frad cap, 4 guage wire, 400 watt power acoustik amp on my mb quart mids highs tweets, clarion mp3/cd head unit, optima yellow top batery, in my 97 acura cl. This thing rocks !!! I had a 800 watt lanzar amp on the subs before it was loud but this blows it away. this amp is so clean and underated.

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the best amp rated at 600 watts rms ive ever used or heard