installed these in the front and rear doors of my 2001 S10 Crew Cab. overall they are great speakers, unless you are pushing a lot of bass, then you might want to think about crossovers. i had alpine type S's in my old car and they cant even come close to the quality of the references this is a good price too.

I installed these in the front doors of my 2000 Honda Insight, and they fit perfectly with no modifications required. These speakers continue to sound better and better as they break in. They have outstanding clarity and smooth highs, as does every Infinity I've ever heard. Instrumentals and vocals sound just fantastic! Bass is adequate but not fabulous, but they are limited by their size and thus I don't knock them for it. I set the high-pass filter on my head unit (Kenwood KDC-X591) to 60 Hz, which eliminated muddy washed-out sounding bass at the expense of some thump.

I am planning on adding a compact powered subwoofer at some point, just to round out the bottom end, but even by themselves they're leaps and bounds better than the stock speakers. I recommend them highly.

I recently inherited a 1995 Plymouth Voyager with the factory Infinity audio system. After replacing the OEM headunit due to a disfunctional clock and adding a 6CD changer and Sirius receiver, I thought I'd swap out the 12 year old OEM Infinity speakers for more up to date versions. Hence my purchase of these 6012si References and the matching 5.5" dash and 6x9" door panel Refs. First, I think the 6x9s would have worked in the rear hatch eventhough Crutchfield indicates they would not. Both the 6012s and the 6x9s were more difficult to install than expected. I had to drill holes in the door mounts to get the 6x9s in. I don's know what Chrysler was thinking when they faced the door panel speakers directly into the front seat bolsters, rendering them nearly inaudible except when the doors are open. The 5.5s fit the instrument panel perfectly though and were the easiest to install.

Overall, the sound quality is good. As expected, light on bass and treble is excellent. They still need to "break in" but I'm not sure the whole swap is enough of an improvement over the old OEM Infinitys to have justified the cost of replacement. I guess speaker technology hasn't improved as much as I anticipated. Live and learn.

The speakers are a good value. I got them on sale. I'ved used Crutchfield for years; always good instructions, great customer service. These instructions were not up to par with others. I had to improvise a bit (break out the Dremel). It took me about 2-3 hours to removal the OEM's and install the new ones. They sound good, but don't have a lot of bass. Ijust use my rear speakers for the bass.

I replaced the stock speakers in a 07 Honda Ridgeline with these. I did not realize how bad the stock speakers were until I installed these. I do not have a problem with a lack of bass because I have the factory installed subwoofer. The highs are much more crisp and I feel that I am hearing the music as it is intended.

Just using the instructions I would not have been able to install. Just know that you will need to drill holes to install the adapter bracket. Actually you will need afix the metal bracket included with the speaker to the adapter bracket supplied by Crutchfield. You will then attach the speaker to the metal bracket. You will also need to cut off the long screws supplied with the speaker once you have installed the metal bracket on the plastic adapter bracket... if that makes any sense.

It took me 2 hours to do the first speaker and an hour to do the other three.

I love the speakers because they offer excellent clarity for vocals and instrumentation. I also have bass blockers on them to keep them from blowing out and they work great. Since I have Infiniti 6x9's in the rear bass isn't a real problem. My only problem is that Crutchfield didn't give me any screws to connect the speakers to the adaptor. Other than that (1/2 hour finding screws) things were great. Speakers 5 and no screws make if a four.

As others have noted, these speakers are not going to shake you with bass. Being shallow 6.5's, though, one shouldn't expect that.

The high frequencies truly sparkle, and mid-range is clear, tight and full. With even a small (8") subwoofer, though, the sound is fantastic.

I have these in the back deck, with a pair of 6.5" Kappa components up front and an 8" Kappa sub in the trunk. A similar setup would more than satisfy anyone who's not looking to shake the windows.

Overall, I've preferred Infinity speakers to everything I've owned except some very pricey Boston Acoustics. The only disappointment I've had was with the white-cone Reference series. After less than 3 years in the back deck, the cones literally fell apart. They were like crumbled parchment. These, though appear more substantial and I'll hope for better longevity.

I used to only believe in alpine products until i recenly heard how clear Infinity's are and have purchased them ever since. My only complaint is that i wish it had a pivoting tweeter. Also get the dynamat for the doors or wherever your installing new speakers, because the music will sound so much fuller with it than without it. My system consists of infinity 6 1/2's and 2 12in infinty kappa perfects running off a jl audio 500/1 amp.

This is my second pair of Infiniti speakers wouldnt buy anythng else. These speakers just rock. Very clean sound and good base reproduction. Used 12ga speaker wire which makes a huge difference. Setup with Infinity Baselink for awsome sound in Pickup Truck.

These speakers play good mids and highs, but the lows are just not there. In fact, my factory speakers, which aren't even quite 6.5's, played deeper bass with less distortion. Later I switched from the factory radio to a new Pioneer receiver, which improved the sound a little but it still can't match the bass of the former system.