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Yamaha NS-F901 Soavo Speakers (Pair)


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Frequency Response 32Hz - 50kHz
Impedance 8Ohm
Warranty length 2 Years (3 Years on registration)
Brand Yamaha Audio

Tech Specs

Type: 3-Way Bass-Reflex Floor-Stander
Woofers: Dual 6 1/2” Advanced PMD cone
Mid Range Driver: 5” Advanced PMD cone
Tweeter: 1” aluminium dome
Freq Response: 32 Hz-50 kHz
Nominal Input Power: 50 W
Max Input Power: 200 W
Sensitivity: 89 dB / 2.83 V/1 m
Crossover Freq: 450 Hz / 3.5 kHz
Impedance: 6 ohms
Dimensions (WHD): 270 x 1,060 x 425 mm
Weight: 30.7 kg: 67 lbs/unit

Product Description

The Yamaha NS-F901 continues Yamaha's long-standing tradition of excellence in speaker design, delivering incredibly transparent sound from all types of data-rich, high-resolution sound sources. Using innovative design techniques and the highest quality materials, the NS-F901 is a truly superior speaker.

Soavo Natural Concept

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-res 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.

New A-PMD Midrange

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 aluminium die-cast 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.

New A-PMD Woofer

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 utilising high-quality parts such as a high rigidity aluminium die-cast 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.

Totally faithful Audio

The 3cm (1”) dome tweeter is made of aluminium 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 aluminium diecast tweeter plate that minimises 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.

Powerful Accurate Sound

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.

Aluminum Tweeter Plate

A diecast aluminium 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.

High-Quality Parts

The crossover networks employ the highest quality parts, including Solen metallised 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.

Graceful Appearance

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 theatre.

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.

Key Features

- Soavo Concept: Delivering Natural Sound
- A-PMD Mid reproduces high-res sources with richly clear detailed sound
- A-PMD Woofer produces low range with ample power and responsiveness
- Aluminium dome tweeter with DC-Diaphragm with neodymium magnet
- Innovative cabinet design (non-parallel surfaces)
- Three-way mitered-joint construction
- 2-chamber cabinet (woofer/mid separated by slanted partition) + vertical bracing
- Highest quality parts including Solen capacitors in the networks
- Graceful appearance designed by Toshiyuki Kita

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