I own the VT100 MKII and have auditioned the VT130 in my system. Suffice it to say, I did not feel it necessary to replace my ARC D115 MKII with the VT130. However, after hearing the VT100 MKII in my system, I sold the D115 MKII. I think that the VT100 MKII is a superior amp to the VT130. Period! Used with the 'right' ancillary equipment and cables the VT100 MKII can sound 'rich' in the midrange without being 'tubey' sounding. The VT100 MKII has greater treble extension and bass control than either the CJ IIa or the VT130. The CJ has a warmer, less transparent (darker?) tonal balance than the VT100 MKII which also has a magic midrange. In the final analysis, the 'better' amp depends on your system/room and personal preference.
