The reason Vibe is 'bass heavy' is because that's what they started out doing; making boxes, tubes and subs.
When they first started out, Vibe originally stood for Vented Innovative Bass Enclosures.
Over the years they have added other products to their line up to become a full-spectrum audio brand.
That said, I wouldn't say their speakers and compenents are particular Hi-Fidelity.
As others have said here, if you're looking for best from components, try Rianbow, Focal, DLS, JL etc.
Vibe is reasonable stuff at sensible money but don't let the salesman yank your chain, they aren't the best thing since sliced bread. Look at your budget and purchase accordingly.