If you could only upgrade one product in the chain to a vacuum tube for added warmth, would it be the preamp or power amp and why? If you want to learn more, grab a copy of Paul's new book, The Audiophile's Guide. [ Ссылка ]
![](https://i.ytimg.com/vi/j2vPU4ShL-c/maxresdefault.jpg)
If you could only upgrade one product in the chain to a vacuum tube for added warmth, would it be the preamp or power amp and why? If you want to learn more, grab a copy of Paul's new book, The Audiophile's Guide. [ Ссылка ]