Ultimate series UR36S is a 16,5 cm (6,5") 3-way system. The 6,5" driver uses a unique sandwich cone built of three layers like a honeycomb. The midrange is UR2,5 (2,5", 63 mm) mid dome speaker with a rear chamber. Hybrid ferrite/neodymium magnet system. Three inch voice coil. Filterboxes with selectable tweeter and mid level. 28 mm silk dome tweeter UR1. Grilles are included.

Speaker type	: 3-way system
Woofer size	: 16,5 cm (6,5")
Midrange size	: 63 mm (2,5")
Power handling capacity	: 100 W RMS / 160 W max
Tweeter	: 28 mm (1,1")  tweeter
Sensitivity	: 91 dB (1W/1m)
Magnet size woofer	: 685mm (3,35") Hybrid ferrite/neodymium
Magnet size midrange	: 65 mm (2,56") neodymium
Outer diameter of woofer / midrange	: 165 mm (6,5") / 100 mm (3,94")
Installation depth of woofer / midrange	: 65 mm ( 2,56") / 36 mm (1,42")
Mounting hole of woofer / midrange	: 140 mm (5,5") / 82 mm (3,23")
Crossover	: Box filter with 12/6/6 dB slope