yping - I have heard them up against some expensive Kimber XLR IC's and the gzero6's were more detailed and dynamic with a deeper bass response and more expansive image
My own Stager Silver solids with the KLEI Pure Harmony RCA's were not quite as open and lacked a little bass and image, but it was quite close. The imaging was better with the gZero6's.
I also have Van den Hul D102 MKIII with Furutech RCA's - the gzero6's trounced them in every respect.
I also have DH Labs BL-1, which were at about the same level of performance as the VDH.
My own Stager Silver solids with the KLEI Pure Harmony RCA's were not quite as open and lacked a little bass and image, but it was quite close. The imaging was better with the gZero6's.
I also have Van den Hul D102 MKIII with Furutech RCA's - the gzero6's trounced them in every respect.
I also have DH Labs BL-1, which were at about the same level of performance as the VDH.