Polk Audio DB691 6-by-9-Inch 3-Way Speakers (Pair, Silver)

These are some sweet 6x9's. I purchased these as the rear speaker of my vehicle (a 2000 Chevrolet Blazer 2 dr), with the 5 1/4 inch component system (Polk Audio DB5251 5.25-Inch 2-Way Component System (Single, Silver)) as the front door speakers. Crutchfield SAYS these won't fit my vehicle but they screwed in fine. I figured maybe they were too deep, but that isn't the case either. The tweeters do stick out a little, though. The old stock speakers were flat across the mounting surface and I have yet to put the rear panels back in as I am in the process of doing the whole audio 9-yards with subwoofers and all, and that bit worries me. Perhaps the speaker grill of the trim panel won't fit on because the tweeter protrudes too far.. ANYWAY, I'm getting off topic.They sound great hooked straight up to my Pioneer DEH-P7200HD CD Receiver with HD Radio, OEL Display and iPod Control(I haven't hooked up my 4 channel amplifier (Hifonics HFi55.4 HFi Series A/B Stereo Amplifier 4 x 55 @ 4 OHMS, 4 x 110 @ 2 OHMS, 2 x 220 @ 4 OHMS) yet, and I can't WAIT to hear what they sound like given the proper power, as many say you don't scratch the surface of their performance potential straight of the head unit's preamp).The bass is pretty sweet; It goes down nice and low and gets pretty good impact. They even get quite a bit of excursion. But once again they are un-amped so I know I'm only seeing part of the picture.The mids are also pretty good, a tad muddy like previously stated and miles from being "bad", but I think the highs take the prize as far as unamplified sound goes. They go way up in the frequency range and just sound great. Oh and FYI, being that they're 3 way speakers and there are two tweeters per speaker, I'm quite positive they are brighter than the component tweeters in my front set-up.And speaking of tweeters, I do wish these incorporated the swivel tweeter design that allows you to more accurately direct the sound that are on the Infinity Reference series speakers seeing as the back speakers are mounted lower than ear level and I'm aiming for the best sound possible, but alas they've got a patent on it. Phooey.These are also a great value being some 80 odd dollars. I'm not sure that they could be beat for the money. They met and exceeded all expectations held before hearing them.I will probably leave a comment or edit my review when I finally amplify them.

I own multiple sets of polk db and infinity reference series speakers. These are tightly competing product lines both offering incredible performance and value. This is my first set of 6x9 by either brand, so I can't compare them directly, but here are my comments. These were installed into the rear deck of an older bmw and replaced 6" woofers/1" silk tweeters. They are driven by an old school 65x4 RMS clarion pro audio amp (back when clarion was better quality). I intended the polks to provide good bass to complement a set of 5.25 infinity reference components in the front. They surpassed my expectations.Pros:- Fantastic bass response. No question. I have the amplifier network boosting the rear channel by ~6db at 40hz, and many have asked if I have a subwoofer because the low-end extension is clean and can be felt through every seat in the car. Dialed in properly, these perform very well to 35hz in tightly sealed infinity baffle (trunk/cabin) setup. These can literally make my very-tightly adjusted trunk vibrate more than my 100 watt rms 8" subwoofer due to the infinite baffle setup.- Highs are clear, but have a warmer tone.- True 4 ohm speakers are easy on amps and unlikely to cause create any clipping conditions- Awesome power handling. IF YOU PAIR THESE TO A HEAD UNIT DIRECTLY, YOU WILL BE DISAPPOINTED. There is simply no way a head unit can cleanly drive these large speakers if you want to hear them as they were intended by the designer.Cons:- Simple integrated crossover does not deliver the clarity of component setups, but it does very well for coaxials- Speaker cones are quite thin and flexible, probably do not deliver as accurate of base as they could otherwise (though the bass is extremely impressive)- Mounting hardware is cheap and flimsy, Polk could have spent a few more cents on decent screws, nuts, etc.- Slightly less performance/quality for the money than other brands. Infinity give you better overall value in my opinion with their reference series.

I bought these because I had 6x9 polk audio speakers in the past that performed really well and lasted approx 25 years before finally going bad. I also have a 12 inch Polk Audio subwoofer as part of my surround sound system at home (going on 10 years now), and the bass it puts out is downright scary. So I'm convinced Polk makes some quality stuff, and hopefully these will last half as long. Great price point too. These will go in my car, which is in storage for the winter, but I did test them by connecting them to the home theater system and they sound great. Not sure they sound as good as the really old 6x9 Polks they will replace, but they sound pretty darn good. Polk has some quality stuff and for the price, it usually performs way above its sticker. The performance seems to always be right there with the performance of much more expensive brands. I'm very happy with all their stuff, and love the money I saved by buying Polk instead of the high end stuff. Polk speakers seem to last forever too, so that's a huge bonus. Dont hesitate to buy Polk, esp their home theater subwoofers. You'll love them.