BluGuitar - Tone Innovation For Guitarists | 5 years ago

Here is a short video, taken with a mobile phone, showing the BluGuitar AMP 1 Mercury Edition compared to the Tube Thomsen 4535. Would you know which is "AMP A" and which is "AMP B"?

More info about the amp: https://www.bluguitar.com/AMP1_Mercury_Edition.html