Using 4 layer (paper+glass+fiber+silk+ceramic) cone with 37mm v/c with 90mm magnet diameter, Aluminium die cast basket, vented basket and copper phase plug.

Tweeter (HT-28R)
28 mm v/c special hand coated silk dome.
vented magnet with additional rear chamber.
Highly optimized design with high grade proccessed alumunium housing for better performance.
Top Mounting Depth : 27mm
Cut Out Diameter : 51.5 mm

Passive Crossover (XR-270)
2 way passive crossover for RC 270.
Real 24 KT gold plated
Double sided PCB with 2 OZ copper thickness to maximize signal transfers.
Multiple setting Combination , to get the Best tonal accuracy and to facilitate the sound setting.
Using selected silver solder to maximize contacts.
Selectable input for single or dual amplifiers.