I got Heaven VII on April 2, and this is a report after having used them for about a week. Describing these earphones in brief, I would say that this product is one that has you feeling that they are "a new challenge from final audio".
About 4 years ago, I purchased Heaven's first series (S?), and this was my first encounter with final audio; I remember being very surprised when I listened with them. They were completely different to other earphones I had used, and I bought them being surprised by the vast dynamic range and the strongly modulated sizzle factor. Heaven VII is something completely different to previous products; this model competes on its extremely straight expressiveness. In a whiskey commercial a while ago, they used the expression "nothing added; nothing taken away", and these earphones make a similar claim. They have a high level of natural reproduction, from bass through to high tones.
Ordinary earphones emphasize bass tone reproduction, extol the clarity of high frequencies and focus their attention on the flavor of the sound; it seems as though Heaven VII pursues considerably faithful reproduction of original sounds. This is a product with which you can enjoy a sense of realism, the same kind of sound created by musicians on stage. Since they are pursuing not harmonic but fundamental tones, one of their characteristics is that you clearly understand the musical instrument intervals.
You can strongly feel this difference with acoustic instruments in particular. They thoroughly reproduce the sounds of live musical instruments with vast ranges, such as grand pianos. You can completely feel the expressiveness of sound that is hard and reaches right to the very corners of a concert hall, like that of a Steinway.
If I were to mention flaws, I would say that it's hard to listen to them at their best. The ear piece size, how they fit with the wearer's ears and surrounding noise all have a great influence. It's only been about a week since I started using them, but it feels like the depth (three-dimensional feel) of the sound increases as the housing ages. I don't know how long it will take to reach its best state, but this is a product that I recommend to those who are interested in faithfulness to original sound and performance reality.
（male, 50-59 years）