Best Rubber Bonded Ferrite

BLAUPUNKT GTX620 6.5\ 2-Way Coaxial Car Speakers 300 Watts 4 Ohm

High-quality PP Cone. Butyl Rubber Surround..
0.75" High-Quality Aluminium Voice Coil..
Mylar Dome Tweeter. 50 Watts RMS / 300 Watts Peak..
Impedance: 4 Ohm. Frequency Response: 90Hz - 18KHz. Sensitivity: 86dB..

Metra 70-7901 Radio Wiring Harness for Mazda 90-01Power/4 Speaker

Power Handling: Peak: 300 watts / RMS: 30 watts.
Ferrite Magnet-Woofer and Neodymium Magnet -Tweeter.
1" Poly-Ether Imide balanced dome tweeter.

Kenwood eXcelon KFC-XW100 10' Subwoofer Driver

Dimensions (W x H x D): 10-13/16 in x 10-13/16 x 9-1 in.

GRS 6PR-8 6-1/2 Poly Cone Rubber Surround Woofer

Polypropylene cone for perfect balance of stiffness, mass, and self-damping.
Butyl rubber surround ensures high excursion and long term durability.
Stamped steel frame keeps components in perfect alignment.
Optimized motor features high-energy ceramic ferrite magnet, vented pole piece.

Kenwood Excelon KFC-XW1241HP 12 4-ohm Component Subwoofer | Peak Power 2000W

Dimensions (W x H x D): 12-13/16in x 12-13/16in x 11 in.

Kenwood KFC-1796PS 6.75 Inch 330 Watt 2-Way Car Audio Coaxial Speakers (Pair)

Dimensions (W x H x D): 8 in x 5-11/16 in. x 5-1/16ｘ7-3/8 in..

BLAUPUNKT Blaupunkt GTX691 Car Speaker 6 x 9 4-Way Coaxial Speaker Pair 700Watts

Ferrite Magnet Structure. High Quality Steel Basket.
1" Aluminum Voice Coil. Mylar Dome Tweeter.

BOJACK 100 Pcs 3.5mm x 6mm x 0.8mm Axial Lead Ferrite Beads Inductors

Body Size : 3.5 x 6mm/ 0.137" x 0.24"(D*L).
Package Content : Ferrite Bead Lead 100pcs.

Kenwood KFC-D691 6 x 9 Inch 4 Way 600 Watt Peak Power Car Audio Speaker Set

Dimensions (W x H x D): 6-11/16 in. x 6-11/16 in. x 4-7/8 in..