Someone describe his unit :
"LNC-1 ( S/N # 1004 ) with balance and RCA input / output. It is the first unit from the bottom. It has one red power light, two level and two EQ IN/OUT controls on the front panel, eight modules inside the unit, eight Switchcraft, six RCA and two toggle switches on the rear panel. Four modules are Mark Levinson : 2 x LNC high pass 100 Hz and 2 x LNC low pass 100 Hz. The other four modules are Burwen Lab "UNIVERSAL MIXING AMPLIFIER : MODEL UM201. The serial numbers are 0803, 0804, 0964 and 0984. The logos and labels are engraved by F.J. WEIDNER INC."