Aperion DST Dual Firing AMT Ribbon Super Tweeter Speaker Pair – Aperion Audio
Amazon.com: Aperion Audio MKII Planar-Ribbon Super Tweeter Pair for Home Theater Stereo Speaker HiFi Audiophile Ultra High-End Frequency Response up to 40kHz (Gloss Black) : Electronics
Amt Ribbon Tweeter - Raw Speaker Driver Air Motion Transformer | Fruugo NO