Shop quoted seven hundred dollars for a sub and amp install. This does most of that for a fraction and the amp is built in. My iPhone 13 connects without me touching anything.

Not a competition sub. It adds fullness, not chest punch. If you want SPL numbers this is the wrong product, if you want your music to sound complete it is right. The whole job was done in 100 minutes with hand tools.

Install was straightforward: power to the battery, ground to a seat bolt, signal from the speaker level input. No cutting, no line converter needed. I have been running it for 9 weeks now.

Slides under the seat in the Seat and I forget it is there until I turn the key. No cargo space lost, nothing visible from outside.

Filled in the bottom end my Seat never had. Kick drum and bass guitar are separated instead of everything turning into one muddy boom.