Amazing build quality, great attention to detail and fantastic sound!
I've had these in the rear deck of my vehicle for about a year now. My system consists of a Double DIN Navigation Head Unit, a Line driver, MB Quart DSC4125 bridged to my front stage of a set of 3-way components. Rear doors have Blaupunkt 8" Coaxials, and rear deck as the ODw1000's. I have an MB Quart NAU660 6 channel powering the 8" coaxials and the ODw1000's. First off the Blaupunkts blend exceptionally well and get very low in the IB setup. I have the perfect blend of midbass from the front stage to a solid bottom end supplied by these subs. Having them IB works great and unfortunately I cannot comment on boxed sound and output, however I have no reason to believe they wouldn't perform very well. I enjoy the solid output and excellent sound I get from these everyday!!