Bowers & Wilkins Nautilus HTM1 Centre Speaker, Secondhand

Nautilus HTM1
Magnetically shielded centre channel loudspeaker system,

Secondhand 

The speaker consists of one Nautilus™ treble unit, one Kevlar® midrange drive unit, and
Two paper/Kevlar® drivers for bass and midrange.

The speaker allows for bi-wiring to enhance sound quality and imaging, and shielding enables the speaker to be placed on or near a television.

Technical highlights

Tweeter on top: B&W's Tweeter on top technology ensures that the sound
remains focused and time-sensitive, and the stereo-image is presented with
unparalleled three-dimensional accuracy.
Kevlar®: B&W developed and patented the method of using Kevlar® for
loudspeaker cones to reduce unwanted standing waves. DuPont 
created Kevlar® for use in bulletproof vests.
Matrix™: The basic construction of nearly all loudspeakers is the same -
panels of wood-based materials, bonded to form a rectangular box. B&W
studied and evaluated how each aspect of cabinet behaviour and the efficiency
of various materials and construction methods affect sound.
Flowport™: Golf ball aerodynamics theory points the way towards lower
distortion reflex ports. Dimples improve the way the air flows over the surface of
any object. In the case of reflex ports, they offer a significant improvement over
simply flaring the port ends in reducing air flow turbulence at each end of the
port, so you get less chuffing noise and less compression at high sound levels.

D e s c r i p t i o n: 3-way closed-box system
Drive units: 1 x 25mm metal dome high-frequency
1 x 150mm woven Kevlar® cone FST
midrange
2 x 165mm paper/Kevlar® cone bass
F requency re s p o n s e: 49Hz – 20kHz ± 2dB on reference
axis
S e n s i t i v i t y: 90dB spl (2.83V, 1m)
Nominal impedance: 8Ω (min 3.0Ω)
Power handling: 250W into 8Ω unclipped
Dimensions: Height: 318mm, Width: 783mm
Depth: 316mm
F i n i s h e s: Cabinet: Real wood veneer, Black Ash,
Grilles: Black cloth