I don't have mine yet but from what I have heard, upgrading the sub with an amp makes a significant improvement. Some are happy with it after that. Then there are people like UNBROKEN......enough said. I am doing something similar but with cheaper gear replacing the sub and front 6 speakers with a couple DSP amps. I listened to the B&O on my test drive and knew I wouldn't be happy with it so I am collecting gear so I can replace it as soon as I get it.