User Manual

The Design Is Innovative, the
Sound Is Dynamic, Vivid and
“Live”
NS-700 speakers deliver sound that is so
dynamic and vivid, it seems live. One of
the main reasons for this is the non-
parallel design of the cabinets. In
designing them, the Yamaha speaker
team aimed to maximise sound clarity
and imaging, while minimising internal
standing waves. They succeeded with a
rounded top panel that helps to reduce
vertical standing waves, and a
trapezoidal shape that serves to reduce
the horizontal ones. The result is a very
natural, expansive sound, making the
NS-700 speakers excellent for both
multi-channel music of any genre and
home theatre use.
A-PMD Woofer and Midrange
Cones
Yamaha’s exclusive A-PMD (Advanced
Polymer-injected Mica Diaphragm) cones
are extremely light, rigid and sturdy
thanks to the use of a low specific
gravity material called PMP (Poly-
Methyl-Pentene) that is much lighter
than polypropylene. It provides very
fast response time (sound rise and
fall), as well as excellent midrange
clarity and bass response. Outstanding
internal loss characteristics decrease
unwanted resonances to achieve the
smooth frequency response that
results in natural sounding vocals.
Aluminium Dome,
DC-Diaphragm™ Tweeter
The high-performance 3cm (1-1/8”)
tweeter features a dome made of
aluminium, with Yamaha’s DC-
Diaphragm that integrates the
diaphragm and voice coil. It is
extremely light yet durable, and
transmits large amounts of sound
information (highly detailed sound) for
a denser sound field. As a result, this
tweeter delivers highs that are crisp
and clear at all power levels.
Aluminium Dome Tweeter and DC-Diaphragm™
NS-F700 Advanced PMD Cone Woofer
Sound Pressure Distribution Inside the Midrange
Driver (NS-F700)
Left: Ordinary enclosure; Right: Non-parallel surfaces
The image on the left shows that there are standing
waves. The non-parallel surfaces restrict standing waves,
preventing degradation of midrange sound.
Speaker
NS-700 Series
NEW PRODUCT BULLETIN
Technical Data 2
NS-F700 Advanced PMD Cone Woofer Construction
A-PMD (Advanced
Polymer-injected Mica
Diaphragm) cone
Surround (Rolled Edge)
Spider
Top Plate
Magnet
Bottom Yoke
Aluminum
Diecast Frame
Edge-Wound
Rectangular Voice
Coil