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Yamaha NS-B901 Speakers (Pair)

 

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Features

Frequency Response 52Hz - 50kHz
Impedance 6Ohm
Warranty length 2 Years (3 Years on registration)
Brand Yamaha Audio

Tech Specs

Type: 2-Way Bass-Reflex Bookshelf
Woofers: 5” advanced PMD cone
Tweeter: 1” aluminium dome
Freq Response: 52 Hz-50 kHz
Nominal Input Power: 30 W
Max Input Power: 120 W
Sensitivity: 87 dB / 2.83 V/1 m
Crossover Freq: 4 kHz
Impedance: 6 ohms
Dimensions (WHD): 220 x 349 x 237 mm
Weight: 5.9 kg/unit

Product Description

The Yamaha NS-B901 is a bookshelf loudspeaker from the Soavo concept range - delivery incredibly natural sound and designed to deliver superb surround sound. The NS-B901 is perfect for conveying the realism of high resolution audio sources. 

The strikingly bold design matches the audio performance.

Features

- Soavo Concept: Delivering Natural Sound
- New A-PMD Woofer reproduces high resolution sources with richly detailed sound and abundant power
- Aluminum dome tweeter with DC-Diaphragm™ with neodymium magnet
- Innovative cabinet design (non-parallel surfaces)
- Three-way mitered-joint construction
- Highest quality parts including Solen capacitors in the networks
- Graceful appearance designed by Toshiyuki Kita

Soavo Concept: Delivering Natural Sound

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.

New A-PMD Woofer reproduces high resolution sources with richly detailed sound and abundant power

The 13 cm (5”) woofers 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.

Totally faithfully to even the highest range Aluminum Dome, DC-Diaphragm Tweeter

The 3 cm (1”) dome tweeter is made of aluminum for both hardness and responsiveness, 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.

Built for Powerful, Accurate Sound Reproduction with an Innovative Cabinet design

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 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.

High Quality Parts Including Solen Capacitors for the Network

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.

Graceful Appearance Thanks to Noted Designer Toshiyuki Kita

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. 

The real wood veneer with luxurious piano finish presents an elegant appearance for any home theater.

Yamaha Piano Black or White Finish

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.

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