cheap and good sounding ribbons ( i own them) : NeoCD1.0M SB - Fountek ribbon tweeter 3cm2 ribbon black alumunum faceplate - Europe Audio
or D2608/913000 - Scan-Speak 1 inch dome tweeter fabric diaphragm - Europe Audio
or H1499-06 - Seas 27TBCD/GB-DXT 1 inch tweeter high definition aluminium magnesium alloy dome - Europe Audio
or D2608/913000 - Scan-Speak 1 inch dome tweeter fabric diaphragm - Europe Audio
or H1499-06 - Seas 27TBCD/GB-DXT 1 inch tweeter high definition aluminium magnesium alloy dome - Europe Audio