
Round out your sound system with this KEF R7 speaker. The bass drivers' two-part structure is made from concave aluminum skin on a paper cone to provide punch and speed, and its port walls are flexible to delay turbulence. This KEF R7 speaker has internal braces to minimize vibrations that can alter its sound.
A: I am not sure what you mean by watts. The sensitivity of the speakers are 88dB. My amplifier has 150 watts/channel. The speakers "coast" with this amp. Good to listen to them at the store with the amp output you have at home.
Q: How many of the 6.5" woofers are active drivers vs. passive radiators?
A: Two active woofers. The speakers are ported. No passive radiators.