Download Critical MASS Audio catalog bellow.

info on this product on their site http://icondealerservice.com/catalog/index.php?_a=product&product_id=180

TECHNICAL INFORMATION:

Max Power Handling :  400 W/ CHANNEL

RMS Power Handling :  400 W/ CHANNEL
X-Over Type :  24 db/oct
Speaker Size :  5.25"
Voice Coil :  1.65"
Fs :  40.6 Hz
db@1W/1M :  93 db
Motor :  NEO-Hibrid

FEATURES :

Complete Audiophile Front-Stage Design:

Allows for instant Audiophile upgrade integration into any car audio system  Installations.

Smart Hybrid Motor Design:

Huge NEO/Hybrid NEO Motor structure:
Up to 30 times more magnetic charge than standard magnets.

Efficient/Accurate/Huge 1.65" Multi Layer Voice Coil:
More than 4 times the power-handling of other Audiophile design Speakers.

Extra large threading: 
Designed so they fit real wood panels from
Rolls-Royce
Bentley
Aston Martin

Individually Calibrated and Measured
Suprior Linearity & sound quality at all audible frequencies.

 maximizes linearity

at all audible frequency's   .

24 db/oct Professional Grade w/ Hi-pass @ 1900Hz:
Allows for most accurate sound and absolute clarity at all power levels.

Bi-Ampable :
Allows  the tweeter and woofer to be powered by separate amplifier channels or together.

40mm Soft-dome tweeters:
Huge tweeter voice coil for truer sound.

AMPLIFIER SECTION

Product Code: CM524a

"I should preface this review with exactly who

the listeners are: Robyn - USACi sound quality

World Champion and me - both musicians and

audiophiles. Needless to say, We are a tough

bunch to impress. The overall transparency is

crystal clear, giving us the sonic illusion that the

musicians were performing over the engine. I really

can't express how happy we are with this set

- and every other Critical MASS product we've

had the pleasure of listening to! USACi sound quality World Champion"

Critical MASS downloadable catalog:  (please wait 1 minute for hi-res download)
http://www.iconenterprisesinternational.com/downloads/pdf/CM-ProdCat-read.pdf