SainSmart Assembled 6N3 Hifi Buffer Audio Tube Headphone Amplifier Pre-amp Kit with Transformer
Introduction This tube preamp is based on the famous Matisse circuit, some modifications have been applied to expand the range of frequency, it sounds smooth and punchy. It’s…
SainSmart LittleBear P5-1 CLEAR 6J1 tube valve puffer Preamp Preamplifier amplifier
TIPS:when you got the package. you need assemble the preamp board into blue box by youself. it’s easy. then you can use it. (the list picture is assembled….