Below are excerpts from the review:
This is my favourite aspect of the cable, the soundstage is just amazing
The Sundara Closed on stock cable, the soundstage and imaging is just average, lacking depths and height
Pairing the Sundara Closed with BC150B, the improvement is noticeable right away, better depth, width and height perception, very holographic sound, especially when i’m listening to Lana Del Rey’s Did You Know That There’s a Tunnel under Ocean Blvd
Imaging and separation does improve slightly compared to stock cable
Source: Head-Fi