KONG XIAO MENG from Passive Preamplifier Audio Signal Boosting Transformer

The song KONG XIAO MENG from a Passive Preamplifier that is a gainadjustable passive preamplifier (audio signal boosting transformer). Using British original authentic boosting transformers (secondhand disassembled one) 148H, 8DB amplification, the maximum magnification time is 2. 4 times, oscilloscope test bandwidth 2020KHz; And the music source from iPad s HIFI music player with 16bits, the speaker is an IWISTAO 4 full range bamboo enclosure. Passive Preamplifier