Introduction to the Pass Labs XP-30 Preamplifier

Recently, we reviewed the Pass Labs XP-20 stereo preamplifier, and it was marvelous. Hot on its heels is the new XP-30, which has the analog gain stages for each channel in a separate chassis, making a total of three chassis instead of two. The power supply is more substantial, and there are other changes as well, all resulting in lower noise and better dynamic range. I was surprised at how different the sound was from the XP-20, and the bench test spectra will show you why.