I intended to purchase the Music angel Clone M7 Pre-amplifier. Would you please send me further information that listed as below:
1. What kind of materails used to build this Pre-amp. transformer?
2. What are the max.output voltage of this Pre-amp.?
3. Photo for the rear part?
4. How heavy of this Pre-amp.?
I can be reached at 91607642. Thank you for your kind attention.