In the ongoing human pursuit of richer, more immersive sound, a California-born audio company has placed a considered bet: that the boundary between affordable and premium need not be where it has always been drawn. EarFun's Wave Pro X, released in early September at $129.99, arrives carrying technologies long reserved for headphones at twice the price — dual-coaxial drivers, adaptive noise cancellation, and lossless audio support — quietly challenging the assumptions that govern how we value what we hear. It is a small but telling moment in the democratization of sensory experience, where eng