A downgrade from the 6.5” db6501, the db651 has a lower peak power handling (180w versus 300w), but it does have the same frequency (35Hz-22kHz ) and a more affordable MSRP of $99.95 versus the db6501’s whopping $239.95. In addition, the Audio db651 includes a multi-hole mounting pattern for simpler drop-in installation, supplied adapter rings to fit 6.5” and 6.75” applications, and tweeter pivots that allow the user to aim the tweeter towards their listening position.