At $4,950, the Nagra Compact Phono is a “lower cost” high-end audio solution for getting the most out of your vinyl record ...

Conversation evolved into bloviation on what our cover art would look like, certainly it would be a photo of our battery powered tube mic pre-amp recently created in my basement lab. We had four ...

The build starts with an off-the-shelf preamp kit based around two common 6J1 tubes. These Chinese pentode valves come cheap and you can usually get yours hands on this kit for $10 or so.

The 676's mic/line preamp delivers up to 64dB of gain and is equipped with "premium" 12AX7/ECC83S and 12AT7/6072 vacuum tubes that Behringer claims will add "rich, harmonic warmth" to any signal.