My Sonic Lab 1030 Set-up transformer
Specifications :
Frequency response : 10 Hz to 100 Khz (1Ω/47KΩ)
Step-up ratio : 26dB (1Ω/47kΩ/1KHz)
Input Impedance : 0,3 to 6Ω
Load resistance : 47kΩ to 100kΩ
Channel balance : 0,1dB(1kHz)
Channel separation : 100 dB or more (1kHz)
Connectors : Rhodium plated RCA connectors and grouding post
Terminate resistor : Vishay Z201 ERO P-P film resistor