EVERY Time I put on my portapros I am surprised by how good they sound, and how LOUD they can get on even the mediocre amp in my cheapest laptop.
The Koss Portapros are good, and the fact that Miles Davis' Soundtrack to the film Jack Johnson is entirely drowning out the generic 70s and 80s top 40 hits that this coffee shop is playing far too enthusiastically is even better.