I recently obtained a Kubala Sosna Expression Power Cord. My impressions are that, in its favor, it is a big tone cable with excellent tonal color. A lot of music assisted by the Kubala Sosna Expression will be involving because smaller musical images rendered via components using other power cords are too small. With bigger musical images, some detail is more easily heard.
On the other side of the ledger, it seems the treble extension is lacking. Openness and dimensionality attributes do not seem top tier, and can sound too thick if mated with the wrong component. The bass extension and control is also not a strong suit. For some, this power cord may just be what the audio doctor ordered, but care must be taken in matching it for best synergy. I will probably be selling this power cord and look for a power cord which better addresses the Expression's shortcomings (in my system). I do not know if the sound of the Expression power cord completely matches the attributes of the Expression interconnects or speaker cables, however there is a good chance that they are similar. The Expression is on the thick or fat side of neutral.
On the other side of the ledger, it seems the treble extension is lacking. Openness and dimensionality attributes do not seem top tier, and can sound too thick if mated with the wrong component. The bass extension and control is also not a strong suit. For some, this power cord may just be what the audio doctor ordered, but care must be taken in matching it for best synergy. I will probably be selling this power cord and look for a power cord which better addresses the Expression's shortcomings (in my system). I do not know if the sound of the Expression power cord completely matches the attributes of the Expression interconnects or speaker cables, however there is a good chance that they are similar. The Expression is on the thick or fat side of neutral.