Originally Posted by nemoreborn
Copy and paste from Rythmik's website :
Dual driver sub
F25 matches the low frequency output of our vented subs and for music use the output is even higher. The dual driver design increases efficiency so that only half the power is required for a given output level. Like our other high output options, a 600w amplifier is included.
Direct Servo Technology
All our subwoofers use our patented Direct Servo technology. The servo enables precise control over the cone which is essential for tight, dynamic and accurate bass. It also counteracts many different driver non-linearities and allows us to use lighter drivers which avoid the need for excessive amounts of amplifier power.
Some of the benefits of Direct Servo include:
Reduction of the effects of thermal compression are eliminated under normal operation
Higher efficiency allowing output which would normally require a more powerful amplifier
Deep bass extension can be achieved using a low mass driver with superior transient response
Mechanical and thermal memory effects are reduced, further improving transient response
The effective Q value is 0.3 resulting in much tighter and accurate bass than conventional designs
Dramatic reduction of the re-radiation of bass from inside the box
Read more about Direct Servo in our technology section.
View animation demonstrating how Direct Servo works]The standard amplifier of F25 is H800XLR3. It has two Hypex 400WRMS power amplifier modules in one heat sink so that each module independently drive one driver with servo control
. The quickguide of the H800XLR3 amplifier for sealed subs can be found here. Regular price is $1499. The sub is on sale now for $1399. We are currently in the process of finding the freight company to ship these subs. Local pickup is the only shipping option at this moment.
The feet are sold separately. All cones are made of anodized aluminum.I am king of confused ... 800rms or 600rms ?