My very old car had a premium sound system with amp from the factory and always sounded great until the speaker cones separated. I realized that a $30-80 pair of aftermarket speakers would likely be slightly better than most regular car speakers, $80-150 would likely be slightly better than premium factory speakers, and over $150 would be higher end speakers requiring a better head unit and sub. These Polks are lower cost but fit in the upper middle category.I first just screwed a couple of these Polks in and the highs sounded very clear, but the mid was muddy and I believed I would need to add a subwoofer because the sound had very little base. I didn’t expect perfection, but they were just slightly better than regular plain factory speakers and not as good as the original factory premium Infinity Gold speakers that came with my car.I had read about putting in sound deadening material and making sure the speakers were sealed air tight. After buying and very minimally applying some of this material around and behind the speakers, the muddy midrange sound was mostly gone and the base was significantly better. I actually had to turn down the bass on my receiver. I spent more on the sound deadening Siless 80mm material & foam tape than I did on one pair of speakers and ended up only using 20% of it. It also took a lot of time but was all well worth it.Sound is now better than the premium sound that came from the original premium factory speakers and much like Polks I have in the house. I do have to adjust the receiver treble/bass and volume just right for the type of music I’m playing because my receiver won’t output anywhere near as well. If I do though, these Polks produce better sound than my Bluetooth earbuds, the bass vibrates, and I feel like a teenager that just got a new car stereo.

Muy Buena calidad, suenan bastante bien, se alimentan de un estereo sony de 55w RMS

Amazonで購入、米国から2週間ほどで到着しました。エスティマハイブリッドのリアに設置です。フロントのMM6502との音のつながりもよく大変素晴らしい音です。Polk audioは家庭用スピーカーは日本に参入していますが車用も正式に参入販売してほしい。みんなが知りたいのは自分の車にPolk audioスピーカーが設置できるかどうか、どう取り付けしたらいいかだと思うのでPolkがみんカラと正式にコラボすれば設置の情報も共有されるしいいんじゃないでしょうか。

Upgrade to these Polk speakers has improved the sound system quality by 10x on my RV. Bass is great for such small speakers and clarity is excellent. Highly recommend these bad boys!

Good quality for the price. Decent bass for this size speaker.