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Scan-Speak Discovery R1904/613001 3/4″ Ring Dome Autosound Tweeter 

Sold as one each, order two for a stereo pair. 

Follow this link for the R1904/613001 pdf spec sheet.

The Discovery series offer traditional design, superior sound, a solid construction, and a wide range of variants. Combining these elements – plus a wealth of technical features and finesses – it gives our customers the possibility of acquiring a tailor-made Scan-Speak solution with very good performance at a reasonable low price point!

Our Ring Radiator tweeter is a patented technology consisting of a large-roll, non-dome shaped soft diaphragm, where the center point is fixed with a phase plug. The Ring Radiator design provides improved stability and increased high-frequency extension, and diaphragm breakups are dampened and reduced to a minimum.

3/4″ Textile Ringe Dome
Compact mounting dimensions
Wedge included for surface mount
Flush mount flange and Nut for door panel mounting (max metal thickness 1mm (18awg)
Optimized for car use
Minimum recommended crossover of 12dB at 3,000Hz
Also available as part of the Scan-Speak Discovery 820013 6″ Autosound System Kit

Diameter of decorative flush mount ring is 56mm

Here is a 2500Hz crossover schematic you might try.