This is a decent subwoofer, but I was surprised with the sound levels it was able to achieve. I purchased this unit to replace a single JBL GTO804 which had a torn rubber sound. I was looking for something that would play lower frequencies at higher levels. My vehicle has a trunk and I first tried the BT1214 positioned in the recommended location, next to the passenger side wheel well and pointed towards the rear of the vehicle. This took up a lot of room in the trunk so I repositioned it behind the rear seat and pointed at the passenger side wheel well. I could not hear any difference in sound quality or level between the two different locations, so that is where it was mounted.
I hooked up the Bazooka to the same amplifier I already had mounted for the GTO 804 and used the same settings for cutoff and gain, but was surprised that with 12 inch woofer in a vented enclosure, the sound levels were for the most part were no different than than the 8 inch GTO804 in a sealed enclosure. There was one notable exception, the BT1214 was able to play some seriously low frequencies at much higher levels than the JBL GTO804. Unfortunately when it came to sound quality, the BT1214 suffers the same limitation that is typical of almost all vented enclosures. Bass notes sound muddy compared to the tightness that comes from a sealed enclosure.
I did get what I wanted, higher output with low frequencies and I was expecting the degraded sound quality from the vented enclosure.
Pros: It will play low frequencies at high volumes. Installation is a breeze, find a spot to put it and secure the mounting straps with four screws, connect the leads and you are done.
Cons: The single biggest con is the price. For the price, even with Crutchfield's free shipping, I think it is too high for what you get. At $175 or lower I think it would be an better value.