Product Features:

It is the first time to control the volume with transfomer;

Use WE20A to stabilized votage;

Specially designed output transformer by LM itself;

The audio transformer is designed with WE-series iron core winded by British enamelled wire;   
CARDAS-RCA / NEUTRI-XLR.

specifications:
1.Input Impedance：100KΩ
2.Output Impedance：600Ω
3.Sensitivity：330mV(input),2V(output)
4.Gain：15.6dB
5.SNR：＞90dB
6.Frequency Response：10Hz~30KHz ±1dB
7.THD：0.3%
8.Input Terminal：RCA×2 BAL×1, Output Terminal：RCA×1 BAL×1
9.Tube Complement：12AU7×2 / 6C45×2 / 300B×1 / VR75×1 / 12AT7×1 / EF86×1 / 5AR4×1