9 inch Slim Max 600W Subwoofer Active Powered Underseat Car Audio Subwoofer with Built-in Amplified for Car/Truck with Remote Control, Support Low & High-Level Inputs, Black

This subwoofer is a perfect for my van's sound system! It fits perfectly under the seat and delivers just the right amount of low-frequency bass without being overpowering. Exactly what I needed. I'm impressed with the sound quality and value. Already planning to buy another one for my sedan.

bueno lo instale en mi auto, y buena experiencia con el sonido. hasta el día de hoy funciona perfectamente. la calidad de los bajos mejoro notablemente, es importante que sepa configurar el dispositivo adecuadamente.

I used ISUDAR 9 inch Slim Max 600W Subwoofer for a week. It was connected via low level input/RCA cables to my radio. Low pass filter off on the radio.Sound quality: Not so good. Initially I was happy with it, but after about 10 hours of listening I started noticing that it just "mumbles" vs pump bass. It added the feeling of an extra bass to the music, however the base was not clear. More like a deep roar, vs clean base thump. I played with bass boost, input gain, and low pass settings to no avail. It just could not reproduce the bass sound of an instrument, just a general bass thump. Additionally, you could hear other instruments and singing through it. It was like having a 5th speaker instead of a subwoofer. I replaced it with a HY...a 8" subwoofer from Amazon and it did the trick. The resonant bass tones were finally there. About the same volume as ISUDAR, however bass is clear, vibrant and you can tell if it is coming from a bass guitar vs drum.In conclusion, I could have kept it and it would do the trick of adding bass to the music if I did not care about enjoying the whole music experience. My son was happy with it playing an old school rap, but for my rock and country music it just wasn't it.

I put this in a cabinet in my boat, under the helm. Adds just the amount of depth to the sound system. Unless something changes, I am pretty happy with this purchase.

Excelente para un carro pequeñoExcelente sonido muy satisfecho con el producto además se siente y se ve de excelente calidad

It's small and it does fit in small spaces I have it installed under the passenger seat of a 2007 Toyota Yaris

I wanted to have just enough added to my car stock stereo to where I could sing as loud as I wanted and wouldn’t be able to hear myself as much but I can pretty much almost just talk over this speaker along with some new 6 x 9 Kenwood in the rest of the car, I don’t know if somethings wrong with it or if it’s just not powerful enough?