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Yamaha's long tradition of excellence in speaker design is brought to full fruition with the NS-F901 floorstanding speaker.
This impressive speaker delivers incredibly transparent sound from all types of data-rich, high resolution sound sources.
Using innovative design techniques and the highest quality materials, it is a truly superior speaker.
Soavo speakers are created by Yamaha based on our long history and rich experience, including over 125 years of making musical instruments and more than half a century of making speakers. In order to reproduce new high resolution sound sources with the highest quality, the NS-901 series feature new speaker units and undergo extensive sound quality tuning to further refine their expressive capabilities. You can be sure these speakers will deliver all the aural excitement that music and movies have to offer.
The NS-901 Series adopts Yamaha′s unique new A-PMD (Advanced Polymer-injected Mica Diaphragm) with improved cone paper in order to reproduce high resolution sound sources. Taking advantage of the strong points of the A-PMD—extreme lightness, rigidity and stability—the speaker achieves smoothness, very fast response, and sound with good dissemination, reproducing information-rich sound sources with an impressive feeling of density. The A-PMD incorporates a powerful magnetic circuit with a large neodymium magnet and a highly stiff aluminum diecast frame that increases the aperture ratio, achieving outstanding power handling and responsiveness in the mid frequency range, the heart of the music. The rubber surround, a spider made by Kurt Müller of Germany and meticulous tuning also contribute to the reproduction of high quality music and movie sound.
The bass unit also adopts the new A-PMD with a paper cone upgraded for the reproduction of high resolution sound. The use of a large ferrite non-shielded magnet ensures high drive power that provides prodigious bass volume. By utilizing high quality parts such as a high rigidity aluminum diecast frame that dampens resonance, it reproduces bass with a deep sense of scale, achieving both power and speed, leaking out of the speaker cone. This means the full power of the waves is forced out through the air port, resulting in clear, powerful bass.
The 3 cm (1”) dome tweeter is made of aluminum for both hardness and responsiveness, and like the midrange unit, uses a neodymium magnet. It delivers sound that links the medium and high ranges with natural smoothness and transparency. Firmly integrating the diaphragm and voice coil and using a thick surround material increases the sound density and resolution in the high range. With a heavy aluminum diecast tweeter plate that minimizes unwanted resonances and an extremely fine mesh grill that provides ideal sound dissemination, it faithfully reproduces dense sound atmospheres and nuances from high resolution sound source.
The design of the cabinet is of course extremely important if the aim is to create a speaker with superior reproduction capabilities. The goal was to reduce standing waves to ensure highest accuracy, as well as to provide a full, three-dimensional sound with an awesome feeling of depth. The solution was to design a cabinet with non-parallel surfaces, having the woofer and midrange sections divided by a slanted partition, and strengthening the entire enclosure with vertical ladder bracing. Another important point is the three-way mitered construction of the cabinet joints, achieved thanks to Yamaha′s excellence in woodworking. This technique ensures extremely tight joints so the entire cabinet behaves as a single unit, providing tight, powerful and accurate bass reproduction.
A diecast aluminum tweeter plate isolates the tweeter from cabinet vibration and provides a solid attachment for the tweeter unit. This prevents incidental movement, helping to ensure that the high range sound is clear and transparent, with no coloration.
The wooden port is carved from high quality wood, and has thick walls and a flared shape, for smooth sound flow, low port noise and a spacious and massive bass feel.
The crossover networks employ the highest quality parts, including Solen metalized polypropylene capacitors and large iron-core coils with carefully selected wire. All parts are connected by directly soldering each one individually, instead of using printed circuit boards, further contributing to the rich and vivid sound. Finally, meticulous sound tuning ensures optimum transitions between drivers for smooth and natural sound across the entire frequency range.
The original and beautiful form with no flat surfaces was designed by Toshiyuki Kita, an internationally famous product designer. In addition to its high sound quality due to minimal standing waves, the elegant presence of the speaker displays expressions which vary according to the viewing angle. Shaping the stand as a trapezoid without flat surfaces to match the cabinet provides a well-integrated design that looks fine in any location. The real wood veneer with luxurious piano finish presents an elegant appearance for any home theater.
The glossy, lustrous finish is applied using the same techniques developed by Yamaha over many decades of manufacturing beautiful grand pianos. It provides a perfect visual complement to the smooth, rich sound you enjoy from the speakers.
|Specificatii||Type 3-Way Bass-Reflex Floor-Standing Speaker System
Woofers Dual 16 cm (6-1/2”) Advanced PMD cone
MidRange Driver 13 cm (5”) Advacned PMD cone
Tweeter 3 cm (1”) aluminium dome
Frequency Response 32 Hz-50 kHz
Nominal Input Power 50 W
Maximum Input Power 200 W
Sensitivity 89 dB / 2.83 V/1 m
Crossover Frequencies 450 Hz / 3.5 kHz
Impedance 6 ohms
Dimensions (W x H x D) 270 x 1,060 x 425 mm ; 10-5/8” x 41-3/4” x 16-3/4”
Weight 30.7 kg; 67 lbs./unit
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