Purchased 2x Vivid Dual and 2x Classic Dual to fit into Burson Playmate Basic and after installing can tell a noticeable difference: sound is much smoother and top-end much more natural (top end with basic op-amp felt unnatural, very metallic)
Purchased 2x Vivid Dual and 2x Classic Dual to fit into Burson Playmate Basic and after installing can tell a noticeable difference: sound is much smoother and top-end much more natural (top end with basic op-amp felt unnatural, very metallic)