Fusion Audio, Fusion Audio Power Plant Series PP-CM40 4 inch Component Set, http://www.fusioncaraudio.com, www.decibelgarden.com, Decibel Garden offers The Finest High End Import and Domestic A/V Electronics For Home, Mobile, and Marine Entertainment, Decibel Garden high-end audiophile electronics and components, high-fidelity stereo equipment, Audiophile Industry High-End News, In depth information and advice about audio components, free shipping, Decibel Garden where sound is in full bloom

Fusion Audio Power Plant Series
PP-CM40 4" Componet Set

Detailed Light-Weight Polypropylene Cone
Rigid, light-weight cone for accurate reproduction of mid bass
frequencies.
Industrial Cast Basket
Provides maximum structural stability enhancing sound quality
Moulded Terminal Wire Connector
Ensuring fluid connectivity and consistent sound through specifically
moulded terminal wire connections
Sound Dispersing Tweeter Housing
The PowerPlant tweeter housing disperses high frequency sound,
expanding the sound stage.
Gold Plated Connectors
High end componentary and gold plated wire screw connectors
ensure fluid connectivity

Features:

Max Power Rating: 120 Watts
RMS Power Rating: 40 Watts
Compliance (Cms): 503.3
Cone Area (Sd): 5.67
D.C. Coil Resistance (Re): 3.3
Electrical Q (Qes): 0.895
Force Factor (Bl): 3.57
Free Air Resonance (Fs): 94
Frequency Response: 65Hz - 21kHz
Impedance (Nominal): 4
Mechanical Excursion (mm): 8
Mechanical Q (Qms): 5.4
Sensitivity (dB) (1W/1M): 88
Total Loudspeaker Q (Qts): 0.77
Magnet Structure (Oz): 7.3