Best Polyimide Resin

Dayton Audio ND105-8 4' Aluminum Cone Midbass Neo Driver 8 Ohm

Extended-range 60 Hz to 10 kHz performance.
Large excursion capability-4 mm Xmax, 20 mm peak.
Self-shielded Neo-Balanced motor structure.
1″ 4-layer underhung voice coil with polyimide former.

Dayton Audio ND105-4 4' Aluminum Cone Midbass Neo Driver 4 Ohm

Extended-range 60 Hz to 10 kHz performance.
Large excursion capability-4 mm Xmax, 20 mm peak.
Self-shielded Neo-Balanced motor structure.
1″ 4-layer underhung voice coil with polyimide former.

PIONEER TS-A300TW 20mm 450 Watt Component Tweeter

Included multi-fit installation adapters optimize fitment in applicable original equipment (OE) speaker locations.
Inline high-pass network for simple installation.

Dayton Audio DCS165-4 6-1/2\ Classic Subwoofer 4 Ohm

4-layer VC with polyimide former allows high power handling.
Vented pole piece and bumped back plate provide plenty of VC travel with minimal compression.
Copper pole piece cap minimizes inductance.
Rigid non-pressed treated paper/Kevlar cone with rubber surround.
Great for home and automotive applications.

Beyma 6" MID BASS, Black

3" edge wound aluminum voice coil with polyimide fiber glass former.

Beyma 6.5 Inch 8 ohm 100 Watt RMS Pro Midbass/, Black (6MI80)

3" edge wound aluminum voice coil with polyimide fiber glass former.

PIONEER 6.5 350W/3WAY PR SPKRS

20 Of The Best: The Sons Of The Pioneers [LP]

Included multi-fit installation adapters optimize fitment in applicable original equipment (OE) speaker locations.
Inline high-pass network for simple installation.

ADAM Audio Sub12 12 Inches Powered Studio Subwoofer

ultra-thin yet strong titanium diaphragm yields great overall performance FEA-optimized ferrite magnet for extended response and high efficiency.
CCAW voice coil on advanced polyimide former Injected plastic phase plug eliminates phase cancellations.
Precisely engineered diaphragm and alignment mechanism for easy field replacement For use with industry standard 1-3/8"-18 TPI horns.