S, a tube preamplifier that marks the debut of a new product family called Series II. The company positions this range ...

Nagra’s $24,500 PREAMP II-S is considered one of the company’s more affordable preamps. That alone tells you exactly who this is for—and who it isn’t.

Engineering is largely about tradeoffs and constraints. Sometimes, the issues are clouded and the choices are fuzzy, but occasionally, the choice has a fairly clear split. I had one of the latter ...

We have no intention of wading into the vacuum tube versus silicon debates audiophiles seem to thrive on. But we know a quality build when we see it, and this gorgeous tube preamp certainly looks like ...

The project is based on 6418 Tube as it creates a RIAA Phono Preamplifier Kit since the tube is suitable for moving magnet cartridges. The project is based on 6418 Tube as it creates a RIAA Phono ...