Technic stated once
That the rainbows were better I believe.
If you are doing a Hi Fi though you have to take into
account the originals are 2 ohm and better speakers
require more power . Something the Hi Fi amp is already
suffering from a lack of.
I think you need to improve the amp first.
L7 amp has more power so it might be better the BSW's
are designed for L7 power I believe.